# B–Fe system

> B–Fe system: 208 accepted literature values (invariant reaction 175, mixing / partial 18, phase transition 15) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/B-FE.html · Markdown: https://data.orchid-project.org/systems/B-FE.md

208 accepted literature values from 4 paper(s) (experimental 69, model 117, unspecified 22); 0 calculated phase diagram(s). 12 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: [JSON](https://data.orchid-project.org/literature/systems/B-FE.json) · [CSV](https://data.orchid-project.org/systems/B-FE.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#B-FE) · [phases (11)](https://data.orchid-project.org/phases/pages/B-FE.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/B-FE.html) · [Markdown](https://data.orchid-project.org/systems/B-FE.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 69 |
| model | 117 |
| unspecified | 22 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 175 |
| phase transition | 15 |
| mixing / partial | 18 |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/B/B-FE.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/B/B-FE.json) · [CALPHAD hull FeB-01Pal](https://data.orchid-project.org/hulls/calphad-sgte/B/B-FE--FeB-01Pal.json) · [CALPHAD hull FeB-02Rom](https://data.orchid-project.org/hulls/calphad-sgte/B/B-FE--FeB-02Rom.json) · [CALPHAD hull FeB-08Yos](https://data.orchid-project.org/hulls/calphad-sgte/B/B-FE--FeB-08Yos.json) · [CALPHAD hull FeB-19Wit](https://data.orchid-project.org/hulls/calphad-sgte/B/B-FE--FeB-19Wit.json) · [CALPHAD hull FeB-91Pan](https://data.orchid-project.org/hulls/calphad-sgte/B/B-FE--FeB-91Pan.json) · [CALPHAD hull FeB-94Hal-LB](https://data.orchid-project.org/hulls/calphad-sgte/B/B-FE--FeB-94Hal-LB.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the B–Fe system (175)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1930 | congruent melting: L \<-> B27 |  | unspecified | [1] Witusiewicz 2019; _cites Chart 1981_ | Table 3, p. 14, row 1; `ORC-UP7CAF4X3T` |  |
| 1924 | congruent melting: L \<-> B27 | L: B 0.5; B27: B 0.5 | model | [1] Witusiewicz 2019; _cites Van 2013_ [doi](https://doi.org/10.1016/j.jallcom.2012.08.127) | Table 3, p. 14, row 10; `ORC-P3AKAYOV6N` |  |
| 1923 | congruent melting: L \<-> B27 |  | experimental | [1] Witusiewicz 2019; _cites Massalski 1990_ | Table 3, p. 14, row 3; `ORC-3TO7PAIVDH` |  |
| 1923 | congruent melting: L \<-> B27 | L: B 0.5; B27: B 0.5 | experimental | [1] Witusiewicz 2019; _cites Zaitsev 2003_ [doi](https://doi.org/10.1039/b208548h) | Table 3, p. 14, row 7; `ORC-P26QTCUAHM` |  |
| 1923 | congruent melting: L \<-> B27 |  | experimental | [1] Witusiewicz 2019; _cites Portnoi 1969_ [doi](https://doi.org/10.1007/bf00775428) | Table 3, p. 14, row 5; `ORC-RNLP6N4CQ4` |  |
| 1906 | congruent melting: L \<-> B27 | L: B 0.5; B27: B 0.5 | model | [1] Witusiewicz 2019; _cites Hallemans 1994_ | Table 3, p. 14, row 9; `ORC-2JB2NIQTZQ` |  |
| 1900 | congruent melting: L \<-> B27 |  | unspecified | [1] Witusiewicz 2019; _cites Witusiewicz 1989_ | Table 3, p. 14, row 8; `ORC-IRZEC7E65P` |  |
| 1880 | congruent melting: L \<-> B27 | L: B 0.5; B27: B 0.5 | model | [1] Witusiewicz 2019 | Table 3, p. 14, row 12; `ORC-BOSVWJRLMG` |  |
| 1876 | congruent melting: L \<-> B27 | L: B 0.5; B27: B 0.5 | model | [1] Witusiewicz 2019; _cites T 2002_ | Table 3, p. 14, row 11; `ORC-QCGKSE4TLV` |  |
| 1863 | congruent melting: L \<-> B27 |  | unspecified | [1] Witusiewicz 2019; _cites Kubaschewski 1982_ | Table 3, p. 14, row 2; `ORC-KCK5GJFFAY` |  |
| 1863 | congruent melting: L \<-> B27 |  | experimental | [1] Witusiewicz 2019; _cites Sidorenko 1977_ | Table 3, p. 14, row 6; `ORC-N2D5M7XQXS` |  |
| 1813 | congruent melting: L \<-> B27 |  | experimental | [1] Witusiewicz 2019; _cites Voroshnin 1970_ [doi](https://doi.org/10.1007/bf00652720) | Table 3, p. 14, row 4; `ORC-YNRND47CFW` |  |
| 1782 | eutectic: L⇄FeB+βB | L: Fe 0.367; βB: Fe 0 | model | [2] Rompaey 2002; _cites Hallemans 1994_ [doi](https://doi.org/10.1515/ijmr-1994-851002) | Table 5, p. 6, row 15; `ORC-4BWZEO74X7` |  |
| 1782 | eutectic: L \<-> B27+ βB | L: B 0.633; B27: B 0.5; βB: B 1 | model | [1] Witusiewicz 2019; _cites Hallemans 1994_ | Table 3, p. 14, row 20; `ORC-OLGJCWOJRW` |  |
| 1773 | eutectic: L⇄FeB+βB | L: Fe 0.36 | model | [2] Rompaey 2002; _cites Massalski 1990_ | Table 5, p. 6, row 14; `ORC-34FOLM5SKY` |  |
| 1773 | eutectic: L \<-> B27+ βB | L: B 0.64 | experimental | [1] Witusiewicz 2019; _cites Portnoi 1969_ [doi](https://doi.org/10.1007/bf00775428) | Table 3, p. 14, row 17; `ORC-BTFJ5N4D5W` |  |
| 1773 | eutectic: L⇄FeB+βB | L: Fe 0.36 | experimental | [2] Rompaey 2002; _cites Portnoi 1969_ [doi](https://doi.org/10.1007/bf00775428) | Table 5, p. 6, row 17; `ORC-QBZ32YIKND` |  |
| 1773 | eutectic: L \<-> B27+ βB | L: B 0.64; B27: B 0.506; βB: B 0.985 | model | [1] Witusiewicz 2019 | Table 3, p. 14, row 23; `ORC-RIZ23WW4XQ` |  |
| 1773 | eutectic: L \<-> B27+ βB | L: B 0.64 | experimental | [1] Witusiewicz 2019; _cites Massalski 1990_ | Table 3, p. 14, row 15; `ORC-TOBL2VD7RF` |  |
| 1773 | eutectic: L \<-> B27+ βB | L: B 0.632; B27: B 0.5; βB: B 1 | model | [1] Witusiewicz 2019; _cites T 2002_ | Table 3, p. 14, row 21; `ORC-W3PPZ4LOQA` |  |
| 1773 | eutectic: L⇄FeB+βB | L: Fe 0.368; FeB: Fe 0.5; βB: Fe 0 | model | [2] Rompaey 2002 | Table 5, p. 6, row 10; `ORC-YFGOSSBT3Q` |  |
| 1772 | eutectic: L \<-> B27+ βB | L: B 0.625; B27: B 0.5; βB: B 1 | model | [1] Witusiewicz 2019; _cites Poletti 2013_ [doi](https://doi.org/10.1016/j.calphad.2013.08.001) | Table 3, p. 14, row 22; `ORC-LD4BRSMPHI` |  |
| 1772 | eutectic: L⇄FeB+βB | L: Fe 0.374; FeB: Fe 0.5; βB: Fe 0 | model | [2] Rompaey 2002 | Table 5, p. 6, row 11; `ORC-RF7G5LSPPM` |  |
| 1770 | eutectic: L⇄FeB+βB |  | model | [2] Rompaey 2002; _cites Chart 1981_ | Table 5, p. 6, row 12; `ORC-5FMFNIHYRW` |  |
| 1770 | eutectic: L \<-> B27+ βB | L: B 0.64 | unspecified | [1] Witusiewicz 2019; _cites Kubaschewski 1982_ | Table 3, p. 14, row 14; `ORC-DSP32N4KR7` |  |
| 1770 | eutectic: L⇄FeB+βB | L: Fe 0.36 | model | [2] Rompaey 2002; _cites Kubaschewski 1982_ | Table 5, p. 6, row 13; `ORC-SW6QZLABI2` |  |
| 1770 | eutectic: L \<-> B27+ βB |  | unspecified | [1] Witusiewicz 2019; _cites Chart 1981_ | Table 3, p. 14, row 13; `ORC-WBUUPLB7CI` |  |
| 1767 | eutectic: liquid -> FeB + β | L: B 0.629; FeB: B 0.5; β: B 1 | model | [3] Palumbo 2001 | Table I, p. 8, row 3; `ORC-IGW7LXFIQ4` |  |
| 1767 | eutectic: liquid -> FeB + β | L: B 0.63; FeB: B 0.5; β: B 1 | model | [3] Palumbo 2001 | Table I, p. 8, row 1; `ORC-TWPRLNUABC` |  |
| 1766 | eutectic: L \<-> B27+ βB | L: B 0.632 | experimental | [1] Witusiewicz 2019; _cites Zaitsev 2003_ [doi](https://doi.org/10.1039/b208548h) | Table 3, p. 14, row 18; `ORC-BDLRQJZK2U` |  |
| 1753 | eutectic: L \<-> B27+ βB | L: B 0.635 | model | [1] Witusiewicz 2019; _cites Van 2013_ [doi](https://doi.org/10.1016/j.jallcom.2012.08.127) | Table 3, p. 14, row 19; `ORC-LKWWYOMJ6V` |  |
| 1701 | eutectic: L⇄FeB+βB |  | experimental | [2] Rompaey 2002; _cites Voroshnin 1970_ [doi](https://doi.org/10.1007/bf00652720) | Table 5, p. 6, row 16; `ORC-L63BGAUHQU` |  |
| 1701 | eutectic: L \<-> B27+ βB |  | experimental | [1] Witusiewicz 2019; _cites Voroshnin 1970_ [doi](https://doi.org/10.1007/bf00652720) | Table 3, p. 14, row 16; `ORC-TAXQX736DK` |  |
| 1683 | liquid + FeB -> Fe2B | liquid: B 0.33; FeB: B 0.5; Fe2B: B 0.333333 | experimental | [3] Palumbo 2001; _cites ref. 69Por_ | Table I, p. 8, row 13; `ORC-NYI3644X2A` |  |
| 1683 | peritectic: L + B27 \<-> Fe2B | L: B 0.333; Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Portnoi 1969_ [doi](https://doi.org/10.1007/bf00775428) | Table 3, p. 14, row 27; `ORC-SBUL7CESA5` |  |
| 1683 | peritectic: L+FeB⇄Fe2B |  | experimental | [2] Rompaey 2002; _cites Portnoi 1969_ [doi](https://doi.org/10.1007/bf00775428) | Table 5, p. 6, row 25; `ORC-TEUORGGV3R` |  |
| 1681 | peritectic: L + B27 \<-> Fe2B | L: B 0.326; B27: B 0.5; Fe2B: B 0.333 | model | [1] Witusiewicz 2019; _cites Hallemans 1994_ | Table 3, p. 14, row 30; `ORC-KEMZO7QXFB` |  |
| 1681 | peritectic: L+FeB⇄Fe2B | L: Fe 0.674 | model | [2] Rompaey 2002; _cites Hallemans 1994_ [doi](https://doi.org/10.1515/ijmr-1994-851002) | Table 5, p. 6, row 23; `ORC-ZH533MAQJG` |  |
| 1680 | peritectic: L + B27 \<-> Fe2B | Fe2B: B 0.333333, Fe 0.666667 | unspecified | [1] Witusiewicz 2019; _cites Chart 1981_ | Table 3, p. 14, row 24; `ORC-22MZITFK2O` |  |
| 1680 | peritectic: L+FeB⇄Fe2B |  | model | [2] Rompaey 2002; _cites Chart 1981_ | Table 5, p. 6, row 20; `ORC-42IF5LJPWZ` |  |
| 1680 | peritectic: L+FeB⇄Fe2B | L: Fe 0.675 | model | [2] Rompaey 2002; _cites Kubaschewski 1982_ | Table 5, p. 6, row 21; `ORC-IZL64P27VG` |  |
| 1680 | peritectic: L + B27 \<-> Fe2B | L: B 0.325; Fe2B: B 0.333333, Fe 0.666667 | unspecified | [1] Witusiewicz 2019; _cites Kubaschewski 1982_ | Table 3, p. 14, row 25; `ORC-RVAH2YBZCL` |  |
| 1672 | peritectic: L + B27 \<-> Fe2B | L: B 0.318; B27: B 0.5; Fe2B: B 0.333 | model | [1] Witusiewicz 2019; _cites T 2002_ | Table 3, p. 14, row 31; `ORC-GM6LGKCUES` |  |
| 1672 | peritectic: L+FeB⇄Fe2B | L: Fe 0.682; FeB: Fe 0.5; Fe2B: Fe 0.667 | model | [2] Rompaey 2002 | Table 5, p. 6, row 18; `ORC-IJ7I6EHFFX` |  |
| 1671 | liquid + FeB -> Fe2B | liquid: B 0.337; FeB: B 0.5; Fe2B: B 0.333 | model | [3] Palumbo 2001 | Table I, p. 8, row 12; `ORC-FGL4XSU4FL.30e581` |  |
| 1671 | liquid + FeB -> Fe2B | liquid: B 0.335; FeB: B 0.5; Fe2B: B 0.333 | model | [3] Palumbo 2001 | Table I, p. 8, row 10; `ORC-FGL4XSU4FL.849bd2` |  |
| 1669 | peritectic: L + A2 \<-> A1 | L: B 0.084; A2: B 4.500e-5; A1: B 1.000e-4 | model | [1] Witusiewicz 2019; _cites T 2002_ | Table 3, p. 14, row 41; `ORC-HMF6BFZHXA` |  |
| 1669 | peritectic: δFe+L⇄γFe | δFe: Fe 0.999955; L: Fe 0.9163; γFe: Fe 0.999899 | model | [2] Rompaey 2002 | Table 5, p. 6, row 26; `ORC-U5QOMYXLI2` |  |
| 1669 | peritectic: L + A2 \<-> A1 | L: B 0.073; A2: B 4.500e-5; A1: B 1.000e-4 | model | [1] Witusiewicz 2019 | Table 3, p. 14, row 42; `ORC-V7TZPIRDV7` |  |
| 1669 | liquid + FeB -> Fe2B | liquid: B 0.343; FeB: B 0.5; Fe2B: B 0.333 | model | [3] Palumbo 2001 | Table I, p. 8, row 11; `ORC-XN6Z4HXE4O` |  |
| 1667.9 | peritectic: δFe+L⇄γFe | δFe: Fe 0.999911; L: Fe 0.9133; γFe: Fe 0.999898 | model | [2] Rompaey 2002 | Table 5, p. 6, row 27; `ORC-KQBBYMXTSB` |  |
| 1667 | metatectic/catatectic: A2 \<-> L + A1 | L: B 0.068 | experimental | [1] Witusiewicz 2019; _cites Zaitsev 2003_ [doi](https://doi.org/10.1039/b208548h) | Table 3, p. 14, row 36; `ORC-NT467756SZ` |  |
| 1667 | metatectic/catatectic: A2 \<-> L + A1 | A2: B 1.230e-4; L: B 0.081; A1: B 1.060e-4 | model | [1] Witusiewicz 2019; _cites Hallemans 1994_ | Table 3, p. 14, row 35; `ORC-YL5HWAILLW` |  |
| 1666.9 | peritectic: δFe+L⇄γFe | δFe: Fe 0.999877; L: Fe 0.919; γFe: Fe 0.999894 | model | [2] Rompaey 2002; _cites Hallemans 1994_ [doi](https://doi.org/10.1515/ijmr-1994-851002) | Table 5, p. 6, row 30; `ORC-F6L2VAZUYT` |  |
| 1666 | metatectic/catatectic: A2 \<-> L + A1 | A2: B 1.140e-4 | model | [1] Witusiewicz 2019; _cites Van 2013_ [doi](https://doi.org/10.1016/j.jallcom.2012.08.127) | Table 3, p. 14, row 37; `ORC-CUSCNC5GPS` |  |
| 1663 | peritectic: L + B27 \<-> Fe2B | L: B 0.321; Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Zaitsev 2003_ [doi](https://doi.org/10.1039/b208548h) | Table 3, p. 14, row 29; `ORC-WGFRUYXQA3` |  |
| 1662 | peritectic: L + A2 \<-> A1 | L: B 0.072 | experimental | [1] Witusiewicz 2019; _cites Massalski 1990_ | Table 3, p. 14, row 39; `ORC-5UM7FDXPZC` |  |
| 1662 | δ -> γ + liquid | δ: B 3.170e-4; γ: B 1.110e-4; liquid: B 0.095 | model | [3] Palumbo 2001 | Table I, p. 8, row 15; `ORC-6KVT2GXBIX` |  |
| 1662 | δ -> γ + liquid | δ: B 2.580e-4; γ: B 7.570e-5; liquid: B 0.094 | model | [3] Palumbo 2001 | Table I, p. 8, row 17; `ORC-AARED4B2BG` |  |
| 1662 | peritectic: L+FeB⇄Fe2B | L: Fe 0.675 | model | [2] Rompaey 2002; _cites Massalski 1990_ | Table 5, p. 6, row 22; `ORC-BLNGP4YY5L` |  |
| 1662 | peritectic: L + B27 \<-> Fe2B | L: B 0.325; Fe2B: B 0.333333, Fe 0.666667 | unspecified | [1] Witusiewicz 2019; _cites Massalski 1990_ | Table 3, p. 14, row 26; `ORC-CKMTPDMPTH` |  |
| 1662 | peritectic: L+FeB⇄Fe2B |  | experimental | [2] Rompaey 2002; _cites Voroshnin 1970_ [doi](https://doi.org/10.1007/bf00652720) | Table 5, p. 6, row 24; `ORC-E2VFOFNBMA` |  |
| 1662 | peritectic: δFe+L⇄γFe | γFe: Fe 0.928 | model | [2] Rompaey 2002; _cites Massalski 1990_ | Table 5, p. 6, row 29; `ORC-P2GGQNJF6A` |  |
| 1662 | liquid + FeB -> Fe2B | liquid: B 0.325; FeB: B 0.5; Fe2B: B 0.333333 | experimental | [3] Palumbo 2001; _cites ref. 70Vor_ | Table I, p. 8, row 14; `ORC-UUPJKZUTUC` |  |
| 1662 | δ -> γ + liquid | δ: B 3.160e-4; γ: B 1.090e-4; liquid: B 0.095 | model | [3] Palumbo 2001 | Table I, p. 8, row 16; `ORC-WE7IIWTAQ3` |  |
| 1658 | peritectic: L + B27 \<-> Fe2B | L: B 0.337; Fe2B: B 0.333333, Fe 0.666667 | model | [1] Witusiewicz 2019; _cites Van 2013_ [doi](https://doi.org/10.1016/j.jallcom.2012.08.127) | Table 3, p. 14, row 28; `ORC-4GWKQU7ARF` |  |
| 1658 | congruent melting: L \<-> Fe2B | L: B 0.333; Fe2B: B 0.333333, Fe 0.666667 | model | [1] Witusiewicz 2019; _cites Van 2013_ [doi](https://doi.org/10.1016/j.jallcom.2012.08.127) | Table 3, p. 14, row 43; `ORC-JINAMUACBO` |  |
| 1658 | peritectic: L+FeB⇄Fe2B | L: Fe 0.684; FeB: Fe 0.5; Fe2B: Fe 0.667 | model | [2] Rompaey 2002 | Table 5, p. 6, row 19; `ORC-ORZJD2GBAJ` |  |
| 1658 | congruent melting: L -> Fe2B | L: B 0.333; Fe2B: B 0.333333, Fe 0.666667 | model | [1] Witusiewicz 2019; _cites Van 2013_ [doi](https://doi.org/10.1016/j.jallcom.2012.08.127) | Table 3, p. 15, row 11; `ORC-QPNRZVQSH2` |  |
| 1657 | peritectic: L + B27 \<-> Fe2B | L: B 0.323; B27: B 0.488; Fe2B: B 0.333 | model | [1] Witusiewicz 2019 | Table 3, p. 14, row 34; `ORC-WE6C5D72ZN` |  |
| 1656 | peritectic: L + B27 \<-> Fe2B | L: B 0.333; B27: B 0.5; Fe2B: B 0.3333 | model | [1] Witusiewicz 2019; _cites Poletti 2013_ [doi](https://doi.org/10.1016/j.calphad.2013.08.001) | Table 3, p. 14, row 32; `ORC-5TP47ASF6Q` |  |
| 1654 | peritectic: L + A2 \<-> A1 | L: B 0.072 | unspecified | [1] Witusiewicz 2019; _cites Kubaschewski 1982_ | Table 3, p. 14, row 38; `ORC-7JDAZVPA67` |  |
| 1654 | peritectic: δFe+L⇄γFe |  | experimental | [2] Rompaey 2002; _cites Voroshnin 1970_ [doi](https://doi.org/10.1007/bf00652720) | Table 5, p. 6, row 31; `ORC-BRJF5O7FZ3` |  |
| 1654 | peritectic: δFe+L⇄γFe | γFe: Fe 0.928 | model | [2] Rompaey 2002; _cites Kubaschewski 1982_ | Table 5, p. 6, row 28; `ORC-CP655G4WHX` |  |
| 1654 | peritectic: L + A2 \<-> A1 |  | experimental | [1] Witusiewicz 2019; _cites Voroshnin 1970_ [doi](https://doi.org/10.1007/bf00652720) | Table 3, p. 14, row 40; `ORC-TB5XACMD2Q` |  |
| 1654 | δ -> γ + liquid |  | experimental | [3] Palumbo 2001; _cites ref. 69Por_ | Table I, p. 8, row 18; `ORC-XHFG3QIUG4` |  |
| 1653 | peritectic: L + B27 \<-> Fe2B | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019 | Table 3, p. 14, row 33; `ORC-NHVFE7E3AQ` |  |
| 1493 | eutectic: L -> tp-Fe3B + Fe2B | L: B 0.267; tp-Fe3B: B 0.25; Fe2B: B 0.48 | model | [1] Witusiewicz 2019 | Table 3, p. 15, row 28; `ORC-XFIAFO4U22` |  |
| 1492 | congruent melting: L -> tp-Fe3B | L: B 0.25; tp-Fe3B: B 0.25 | model | [1] Witusiewicz 2019 | Table 3, p. 15, row 23; `ORC-FOHUJFM46L` |  |
| 1485 | polymorphic: B27 \<-> B33, Fe2B, βB | B33: B 0.503; Fe2B: B 0.333; βB: B 0.996 | model | [1] Witusiewicz 2019 | Table 3, p. 14, row 47; `ORC-AOYVLJNSMM` |  |
| 1484 | polymorphic: B27 \<-> B33, Fe2B, βB | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019 | Table 3, p. 14, row 46; `ORC-KTUMAIEQWC` |  |
| 1473 | eutectic: L \<-> A1+ Fe2B | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Portnoi 1969_ [doi](https://doi.org/10.1007/bf00775428) | Table 3, p. 14, row 51; `ORC-5JAKS5XEB3` |  |
| 1473 | eutectic: liquid -> γ + Fe2B | liquid: B 0.174; Fe2B: B 0.333333 | experimental | [3] Palumbo 2001; _cites ref. 69Por_ | Table I, p. 8, row 22; `ORC-IUPO6VNTSR` |  |
| 1473 | eutectic: L⇄γFe+Fe2B |  | experimental | [2] Rompaey 2002; _cites Portnoi 1969_ [doi](https://doi.org/10.1007/bf00775428) | Table 5, p. 6, row 39; `ORC-LVFDRLOWFU` |  |
| 1468 | eutectic: L⇄γFe+Fe2B | L: Fe 0.836; γFe: Fe 0.99979; Fe2B: Fe 0.667 | model | [2] Rompaey 2002 | Table 5, p. 6, row 32; `ORC-NLBID6XCOK` |  |
| 1468 | eutectic: L \<-> A1+ Fe2B | L: B 0.164; A1: B 2.100e-4; Fe2B: B 0.333 | model | [1] Witusiewicz 2019; _cites T 2002_ | Table 3, p. 14, row 56; `ORC-RPB7WUAJMB` |  |
| 1468 | eutectic: liquid -> γ + Fe2B | liquid: B 0.168; γ: B 2.070e-4; Fe2B: B 0.333 | model | [3] Palumbo 2001 | Table I, p. 8, row 19; `ORC-WHEZBE2RGW` |  |
| 1467 | eutectic: L⇄γFe+Fe2B | L: Fe 0.833; γFe: Fe 0.999809; Fe2B: Fe 0.667 | model | [2] Rompaey 2002 | Table 5, p. 6, row 33; `ORC-FMKFKA445M` |  |
| 1452 | eutectic: liquid -> γ + Fe2B | liquid: B 0.169; γ: B 1.570e-4; Fe2B: B 0.333 | model | [3] Palumbo 2001 | Table I, p. 8, row 21; `ORC-JUBEJ656PR` |  |
| 1451 | eutectic: liquid -> γ + Fe2B | liquid: B 0.171; γ: B 1.980e-4; Fe2B: B 0.333 | model | [3] Palumbo 2001 | Table I, p. 8, row 20; `ORC-24VXQG3HLN` |  |
| 1450 | eutectic: L \<-> A1+ Fe2B | L: B 0.17; Fe2B: B 0.333333, Fe 0.666667 | unspecified | [1] Witusiewicz 2019; _cites Kubaschewski 1982_ | Table 3, p. 14, row 49; `ORC-EGX6O6JOFI` |  |
| 1450 | eutectic: L⇄γFe+Fe2B | L: Fe 0.83 | model | [2] Rompaey 2002; _cites Kubaschewski 1982_ | Table 5, p. 6, row 35; `ORC-SIYYT4FTTF` |  |
| 1450 | eutectic: L⇄γFe+Fe2B |  | model | [2] Rompaey 2002; _cites Chart 1981_ | Table 5, p. 6, row 34; `ORC-T5OFLX4W2X` |  |
| 1450 | eutectic: L \<-> A1+ Fe2B | Fe2B: B 0.333333, Fe 0.666667 | unspecified | [1] Witusiewicz 2019; _cites Chart 1981_ | Table 3, p. 14, row 48; `ORC-XM2VPOD47A` |  |
| 1448 | eutectic: L \<-> A1+ Fe2B | L: B 0.155; Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Zaitsev 2003_ [doi](https://doi.org/10.1039/b208548h) | Table 3, p. 14, row 53; `ORC-6ARCML366W` |  |
| 1447 | eutectic: L⇄γFe+Fe2B | L: Fe 0.83 | model | [2] Rompaey 2002; _cites Massalski 1990_ | Table 5, p. 6, row 36; `ORC-3AA6277WXQ` |  |
| 1447 | eutectic: liquid -> γ + Fe2B | liquid: B 0.17; Fe2B: B 0.333333 | experimental | [3] Palumbo 2001; _cites ref. 70Vor_ | Table I, p. 8, row 23; `ORC-3MDAOS7J4L` |  |
| 1447 | eutectic: L⇄γFe+Fe2B | L: Fe 0.831 | experimental | [2] Rompaey 2002; _cites Voroshnin 1970_ [doi](https://doi.org/10.1007/bf00652720) | Table 5, p. 6, row 38; `ORC-WXEC6VAV3H` |  |
| 1447 | eutectic: L \<-> A1+ Fe2B | L: B 0.17; Fe2B: B 0.333333, Fe 0.666667 | unspecified | [1] Witusiewicz 2019; _cites Massalski 1990_ | Table 3, p. 14, row 50; `ORC-XIRBPOXK4Q` |  |
| 1446 | eutectic: L \<-> A1+ Fe2B | L: B 0.164; A1: B 1.870e-4; Fe2B: B 0.333 | model | [1] Witusiewicz 2019; _cites Hallemans 1994_ | Table 3, p. 14, row 55; `ORC-RC4RFFA3ML` |  |
| 1446 | eutectic: L⇄γFe+Fe2B | L: Fe 0.836; γFe: Fe 0.999813 | model | [2] Rompaey 2002; _cites Hallemans 1994_ [doi](https://doi.org/10.1515/ijmr-1994-851002) | Table 5, p. 6, row 37; `ORC-SQ5DPYF6T3` |  |
| 1445 | eutectic: L \<-> A1+ Fe2B | L: B 0.165; Fe2B: B 0.333333, Fe 0.666667 | model | [1] Witusiewicz 2019; _cites Van 2013_ [doi](https://doi.org/10.1016/j.jallcom.2012.08.127) | Table 3, p. 14, row 57; `ORC-Q32HL2P6YV` |  |
| 1439 | eutectic: L \<-> A1+ Fe2B | L: B 0.176; Fe2B: B 0.333 | model | [1] Witusiewicz 2019; _cites Poletti 2013_ [doi](https://doi.org/10.1016/j.calphad.2013.08.001) | Table 3, p. 14, row 58; `ORC-7IW2C4YFFS` |  |
| 1437 | eutectic: liquid -> γ + Fe2B | liquid: B 0.17; Fe2B: B 0.333333 | experimental | [3] Palumbo 2001; _cites ref. 97Bat_ | Table I, p. 8, row 24; `ORC-AFFU4CPWFG` |  |
| 1437 | eutectic: L \<-> A1+ Fe2B | L: B 0.17; Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Battezzati 1997_ [doi](https://doi.org/10.1016/s0925-8388%2896%2902570-4) | Table 3, p. 14, row 52; `ORC-WC22Q3ID2A` |  |
| 1436 | eutectic: L \<-> A1+ Fe2B | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019 | Table 3, p. 14, row 54; `ORC-3HZ62DZQAK` |  |
| 1436 | eutectic: L \<-> A1+ Fe2B | L: B 0.17; A1: B 2.200e-4; Fe2B: B 0.333 | model | [1] Witusiewicz 2019 | Table 3, p. 14, row 59; `ORC-Y2HMVNFQIB` |  |
| 1433 | peritectic: L + B27 -> tp-Fe3B | B27: B 0.5; tp-Fe3B: B 0.25 | experimental | [1] Witusiewicz 2019; _cites Battezzati 1997_ [doi](https://doi.org/10.1016/s0925-8388%2896%2902570-4) | Table 3, p. 15, row 24; `ORC-5RXYVAVKY3` |  |
| 1428 | peritectic: L + B27 -> tp-Fe3B | L: B 0.245; B27: B 0.5; tp-Fe3B: B 0.25 | model | [1] Witusiewicz 2019; _cites Zhou 2016_ [doi](https://doi.org/10.1007/s11664-015-4112-y) | Table 3, p. 15, row 25; `ORC-BIXG4SGHD3` |  |
| 1426 | congruent melting: L -> tp-Fe3B | L: B 0.25; tp-Fe3B: B 0.25 | unspecified | [1] Witusiewicz 2019; _cites Palumbo 2001_ [doi](https://doi.org/10.1016/s0364-5916%2802%2900012-3) | Table 3, p. 15, row 22; `ORC-CJNDIE3OGI` |  |
| 1420 | eutectic: L -> tp-Fe3B + Fe2B | tp-Fe3B: B 0.25; Fe2B: B 0.5 | model | [1] Witusiewicz 2019; _cites Poletti 2013_ [doi](https://doi.org/10.1016/j.calphad.2013.08.001) | Table 3, p. 15, row 27; `ORC-7UF5JUZHY7` |  |
| 1419 | eutectic: L -> tp-Fe3B + Fe2B | L: B 0.268; tp-Fe3B: B 0.25; Fe2B: B 0.5 | unspecified | [1] Witusiewicz 2019; _cites Palumbo 2001_ [doi](https://doi.org/10.1016/s0364-5916%2802%2900012-3) | Table 3, p. 15, row 26; `ORC-OY7VA452YC` |  |
| 1408 | polymorphic: B27 \<-> B33, Fe2B, βB | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Lyakishev 1996_ | Table 3, p. 14, row 44; `ORC-VCPKW42Y77` |  |
| 1393 | eutectic: L -> A1 + tp-Fe3B | L: B 0.188; tp-Fe3B: B 0.25 | model | [1] Witusiewicz 2019; _cites Poletti 2013_ [doi](https://doi.org/10.1016/j.calphad.2013.08.001) | Table 3, p. 15, row 31; `ORC-LFUUO66IBE` |  |
| 1388 | eutectic: L -> A1 + tp-Fe3B | L: B 0.179; tp-Fe3B: B 0.25 | model | [1] Witusiewicz 2019; _cites Zhou 2016_ [doi](https://doi.org/10.1007/s11664-015-4112-y) | Table 3, p. 15, row 32; `ORC-3SP5H4T6EQ` |  |
| 1387 | eutectic: L -> A1 + tp-Fe3B | L: B 0.18; tp-Fe3B: B 0.25 | experimental | [1] Witusiewicz 2019; _cites Battezzati 1997_ [doi](https://doi.org/10.1016/s0925-8388%2896%2902570-4) | Table 3, p. 15, row 29; `ORC-B2GSAPKJL7` |  |
| 1387 | eutectic: liquid -> γ + Fe3B | Fe3B: B 0.25 | experimental | [3] Palumbo 2001; _cites ref. 97Bat_ | Table I, p. 8, row 31; `ORC-IJ4I6XWCVT` |  |
| 1386 | eutectic: liquid -> γ + Fe3B | liquid: B 0.183; γ: B 1.840e-4; Fe3B: B 0.25 | model | [3] Palumbo 2001 | Table I, p. 8, row 30; `ORC-B7D6YUJTCL` |  |
| 1386 | eutectic: L -> A1 + tp-Fe3B | L: B 0.186; A1: B 2.400e-4; tp-Fe3B: B 0.25 | model | [1] Witusiewicz 2019 | Table 3, p. 15, row 34; `ORC-OUW6ZOKPNT` |  |
| 1386 | eutectic: liquid -> γ + Fe3B | liquid: B 0.186; γ: B 2.190e-4; Fe3B: B 0.25 | model | [3] Palumbo 2001 | Table I, p. 8, row 29; `ORC-T5MMZQCA6C` |  |
| 1386 | eutectic: L -> A1 + tp-Fe3B | L: B 0.186; tp-Fe3B: B 0.25 | unspecified | [1] Witusiewicz 2019; _cites Palumbo 2001_ [doi](https://doi.org/10.1016/s0364-5916%2802%2900012-3) | Table 3, p. 15, row 30; `ORC-VJ7FOEDBZN` |  |
| 1370 | eutectic: L -> A1 + tp-Fe3B | tp-Fe3B: B 0.25, Fe 0.75 | experimental | [1] Witusiewicz 2019 | Table 3, p. 15, row 33; `ORC-TE72MUUG65` |  |
| 1323 | polymorphic: B27 \<-> B33, Fe2B, βB | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Rades 2011_ [doi](https://doi.org/10.1002/cphc.201001072) | Table 3, p. 14, row 45; `ORC-S3S3RTEBOO` |  |
| 1234 | other: tp-Fe3B -> bct-Fe3B, A1, B33 | tp-Fe3B: B 0.25, Fe 0.75; bct-Fe3B: B 0.25, Fe 0.75 | experimental | [1] Witusiewicz 2019 | Table 3, p. 15, row 35; `ORC-W4LO2TFCCT` |  |
| 1233 | other: tp-Fe3B -> bct-Fe3B, A1, B33 | tp-Fe3B: B 0.25; bct-Fe3B: B 0.25; A1: B 2.100e-4; B33: B 0.476 | model | [1] Witusiewicz 2019 | Table 3, p. 15, row 36; `ORC-T6MHEI3QM7` |  |
| 1192 | eutectoid: A1 -> A2 + bct-Fe3B | bct-Fe3B: B 0.25, Fe 0.75 | experimental | [1] Witusiewicz 2019 | Table 3, p. 15, row 37; `ORC-E454BHSS5T` |  |
| 1188 | eutectoid: γFe⇄αFe+Fe2B |  | experimental | [2] Rompaey 2002; _cites Voroshnin 1970_ [doi](https://doi.org/10.1007/bf00652720) | Table 5, p. 6, row 45; `ORC-5QIEE3B2FI` |  |
| 1188 | eutectoid: A1 \<-> A2 + Fe2B | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Voroshnin 1970_ [doi](https://doi.org/10.1007/bf00652720) | Table 3, p. 14, row 62; `ORC-XBOHQ3QTQB` |  |
| 1186 | eutectoid: A1 \<-> A2 + Fe2B | Fe2B: B 0.333333, Fe 0.666667 | unspecified | [1] Witusiewicz 2019; _cites Kubaschewski 1982_ | Table 3, p. 14, row 60; `ORC-6WEVPA5Q6U` |  |
| 1186 | eutectoid: γFe⇄αFe+Fe2B |  | model | [2] Rompaey 2002; _cites Kubaschewski 1982_ | Table 5, p. 6, row 42; `ORC-SGDKH5QBMW` |  |
| 1185 | eutectoid: A1 \<-> A2 + Fe2B | A1: B 6.000e-5; A2: B 4.300e-5; Fe2B: B 0.333 | model | [1] Witusiewicz 2019; _cites T 2002_ | Table 3, p. 14, row 66; `ORC-G4PCCBR7CH` |  |
| 1185 | γ -> α + Fe2B | γ: B 5.910e-5; α: B 4.300e-5; Fe2B: B 0.333 | model | [3] Palumbo 2001 | Table I, p. 8, row 27; `ORC-P5KNF3HJ26` |  |
| 1185 | eutectoid: A1 \<-> A2 + Fe2B | A1: B 5.800e-5; A2: B 4.500e-5; Fe2B: B 0.333 | model | [1] Witusiewicz 2019; _cites Hallemans 1994_ | Table 3, p. 14, row 65; `ORC-PBU3PKRYZX` |  |
| 1185 | eutectoid: A1 \<-> A2 + Fe2B | A1: B 5.900e-5; Fe2B: B 0.333333, Fe 0.666667 | model | [1] Witusiewicz 2019; _cites Van 2013_ [doi](https://doi.org/10.1016/j.jallcom.2012.08.127) | Table 3, p. 14, row 67; `ORC-PLS53HONWD` |  |
| 1184.6 | eutectoid: γFe⇄αFe+Fe2B | γFe: Fe 0.999942; αFe: Fe 0.999955 | model | [2] Rompaey 2002; _cites Hallemans 1994_ [doi](https://doi.org/10.1515/ijmr-1994-851002) | Table 5, p. 6, row 44; `ORC-Y3UJ5TEHQQ` |  |
| 1184.6 | eutectoid: γFe⇄αFe+Fe2B | γFe: Fe 0.999941; αFe: Fe 0.999956; Fe2B: Fe 0.667 | model | [2] Rompaey 2002 | Table 5, p. 6, row 41; `ORC-YFLTHIWO5Q.4b96d7` |  |
| 1184.6 | eutectoid: γFe⇄αFe+Fe2B | γFe: Fe 0.999941; αFe: Fe 0.999957; Fe2B: Fe 0.667 | model | [2] Rompaey 2002 | Table 5, p. 6, row 40; `ORC-YFLTHIWO5Q.ffba34` |  |
| 1184 | eutectoid: A1 \<-> A2 + Fe2B | A1: B 7.600e-5; A2: B 6.000e-6; Fe2B: B 0.333 | model | [1] Witusiewicz 2019 | Table 3, p. 14, row 68; `ORC-4IHIFUSEUM` |  |
| 1184 | eutectoid: γFe⇄αFe+Fe2B |  | model | [2] Rompaey 2002; _cites Massalski 1990_ | Table 5, p. 6, row 43; `ORC-JZMR5Z4VXP` |  |
| 1184 | eutectoid: A1 \<-> A2 + Fe2B | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Massalski 1990_ | Table 3, p. 14, row 61; `ORC-W53HKRBUTI` |  |
| 1183 | eutectoid: γFe⇄αFe+Fe2B | γFe: Fe 0.99994; αFe: Fe 0.999958 | experimental | [2] Rompaey 2002; _cites Cameron 1986_ [doi](https://doi.org/10.1007/bf02650132) | Table 5, p. 6, row 46; `ORC-BD5M25GEIP` |  |
| 1183 | eutectoid: A1 \<-> A2 + Fe2B | A1: B 6.000e-5; A2: B 4.300e-5; Fe2B: B 0.333333, Fe 0.666667 | unspecified | [1] Witusiewicz 2019; _cites Cameron 1986_ [doi](https://doi.org/10.1007/bf02650132) | Table 3, p. 14, row 63; `ORC-JO24V3J6FN` |  |
| 1183 | eutectoid: A1 -> A2 + bct-Fe3B | A1: B 1.600e-4; A2: B 1.100e-5; bct-Fe3B: B 0.25 | model | [1] Witusiewicz 2019 | Table 3, p. 15, row 38; `ORC-W4LS44O5V7` |  |
| 1182 | eutectoid: A1 \<-> A2 + Fe2B | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019 | Table 3, p. 14, row 64; `ORC-S3XWLOWXMK` |  |
| 1181 | γ -> α + Fe2B | γ: B 5.900e-5; α: B 4.300e-5; Fe2B: B 0.333333 | experimental | [3] Palumbo 2001; _cites ref. 86Cam_ | Table I, p. 8, row 28; `ORC-5NODA6XLN6` |  |
| 1044 | magnetic: A2 \<-> A2f, Fe2B | A2: B 0.333333, Fe 0.666667; Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Arajs 1964_ [doi](https://doi.org/10.1063/1.1702873) | Table 3, p. 14, row 69; `ORC-RTA53OP4QB` |  |
| 1043 | magnetic: A2 \<-> A2f, Fe2B | A2: B 0.333333, Fe 0.666667; Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Velasco 2007_ | Table 3, p. 14, row 70; `ORC-5S253LUBJA` |  |
| 1043 | magnetic: A2 -> A2f, Fe2B | A2: B 0.333333, Fe 0.666667; Fe2B: B 0.333333, Fe 0.666667 | model | [1] Witusiewicz 2019; _cites T 2002_ | Table 3, p. 15, row 1; `ORC-6TDNGN5LSI` |  |
| 1043 | magnetic: A2 -> A2f, bct-Fe3B | A2: B 0.25, Fe 0.75; bct-Fe3B: B 0.25, Fe 0.75 | experimental | [1] Witusiewicz 2019 | Table 3, p. 15, row 39; `ORC-G2DCMH6K6C` |  |
| 1043 | magnetic: A2 -> A2f, bct-Fe3B | A2: B 2.000e-6; bct-Fe3B: B 0.25 | model | [1] Witusiewicz 2019 | Table 3, p. 15, row 40; `ORC-PVREIQTZUL` |  |
| 1043 | magnetic: A2 -> A2f, Fe2B | A2: B 1.000e-6; Fe2B: B 0.3333 | model | [1] Witusiewicz 2019 | Table 3, p. 15, row 4; `ORC-UXXBF4D7JM` |  |
| 1043 | magnetic: A2 -> A2f, Fe2B | A2: B 0.333333, Fe 0.666667; Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019 | Table 3, p. 15, row 3; `ORC-VJWAM5UNFC` |  |
| 1042 | magnetic: A2 -> A2f, Fe2B | A2: B 0.333333, Fe 0.666667; Fe2B: B 0.333333, Fe 0.666667 | unspecified | [1] Witusiewicz 2019; _cites Kubaschewski 1982_ | Table 3, p. 15, row 2; `ORC-OZEY2O637N` |  |
| 1018 | magnetic: Fe2B -> Fe2Bf, A2f, B33 | Fe2B: B 0.333333, Fe 0.666667 | model | [1] Witusiewicz 2019; _cites T 2002_ | Table 3, p. 15, row 8; `ORC-KIGFY3BCTG` |  |
| 1015 | magnetic: Fe2B -> Fe2Bf, A2f, B33 | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Chien 1979_ [doi](https://doi.org/10.1103/physrevb.20.283) | Table 3, p. 15, row 7; `ORC-NTTNBO4ELJ` |  |
| 1015 | magnetic: Fe2B -> Fe2Bf, A2f, B33 | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Murphy 1973_ [doi](https://doi.org/10.1103/physrevb.7.23) | Table 3, p. 15, row 6; `ORC-SYAGMDX5BY` |  |
| 1015 | magnetic: Fe2B -> Fe2Bf, A2f, B33 | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019 | Table 3, p. 15, row 9; `ORC-TAOA4WFMEA` |  |
| 1015 | magnetic: Fe2B -> Fe2Bf, A2f, B33 | Fe2B: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Cadeville 1965_ | Table 3, p. 15, row 5; `ORC-VCSU3KY3BC` |  |
| 1015 | magnetic: Fe2B -> Fe2Bf, A2f, B33 | Fe2B: B 0.333; A2f: B 1.000e-6; B33: B 0.498 | model | [1] Witusiewicz 2019 | Table 3, p. 15, row 10; `ORC-WPVRPY23FI` |  |
| 897 | magnetic: bct-Fe3B -> bct-Fe3Bf, A2f, B33 | bct-Fe3B: B 0.25, Fe 0.75 | unspecified | [1] Witusiewicz 2019; _cites Kong 1997_ [doi](https://doi.org/10.1103/physrevb.56.3153) | Table 3, p. 15, row 41; `ORC-JTQEFMRURG` |  |
| 800 | magnetic: bct-Fe3B -> bct-Fe3Bf, A2f, B33 | bct-Fe3B: B 0.25, Fe 0.75 | experimental | [1] Witusiewicz 2019; _cites Chien 1979_ [doi](https://doi.org/10.1103/physrevb.20.283) | Table 3, p. 15, row 42; `ORC-56JEJKODO2` |  |
| 793 | magnetic: bct-Fe3B -> bct-Fe3Bf, A2f, B33 | bct-Fe3B: B 0.25, Fe 0.75 | unspecified | [1] Witusiewicz 2019; _cites Menushenkov 2012_ | Table 3, p. 15, row 44; `ORC-46FGB6DVFC` |  |
| 789 | magnetic: bct-Fe3B -> bct-Fe3Bf, A2f, B33 | bct-Fe3B: B 0.25; A2f: B 0; B33: B 0.495 | model | [1] Witusiewicz 2019 | Table 3, p. 15, row 46; `ORC-N5GFOWFPQH` |  |
| 789 | magnetic: bct-Fe3B -> bct-Fe3Bf, A2f, B33 | bct-Fe3B: B 0.25, Fe 0.75 | experimental | [1] Witusiewicz 2019 | Table 3, p. 15, row 45; `ORC-NRTADSURC7` |  |
| 786 | magnetic: bct-Fe3B -> bct-Fe3Bf, A2f, B33 | bct-Fe3B: B 0.25, Fe 0.75 | unspecified | [1] Witusiewicz 2019; _cites Coehoorn 1989_ [doi](https://doi.org/10.1016/0304-8853%2889%2990333-8) | Table 3, p. 15, row 43; `ORC-EHAT2TVKRP` |  |
| 600 | magnetic: B33 -> B33f, Fe2Bf, βB | Fe2Bf: B 0.333333, Fe 0.666667 | model | [1] Witusiewicz 2019; _cites T 2002_ | Table 3, p. 15, row 19; `ORC-NPKSV7BUZF` |  |
| 597.5 | magnetic: B33 -> B33f, Fe2Bf, βB | Fe2Bf: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Jeffries 1969_ [doi](https://doi.org/10.1016/0375-9601%2869%2990927-x) | Table 3, p. 15, row 12; `ORC-BBA326FXOG` |  |
| 594 | magnetic: B33 -> B33f, Fe2Bf, βB | Fe2Bf: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Lundquist 1962_ [doi](https://doi.org/10.1080/14786436208209119) | Table 3, p. 15, row 14; `ORC-XKG357OBHU` |  |
| 593 | magnetic: B33 -> B33f, Fe2Bf, βB | Fe2Bf: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Cadeville 1965_ | Table 3, p. 15, row 13; `ORC-MQAIMHHMH6` |  |
| 590 | magnetic: B33 -> B33f, Fe2Bf, βB | Fe2Bf: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites DeYoung 1975_ [doi](https://doi.org/10.1063/1.430698) | Table 3, p. 15, row 15; `ORC-K7TZIYK244` |  |
| 580 | magnetic: B33 -> B33f, Fe2Bf, βB | B33: B 0.5; Fe2Bf: B 0.333; βB: B 1 | model | [1] Witusiewicz 2019 | Table 3, p. 15, row 21; `ORC-DFI76ITXIZ` |  |
| 580 | magnetic: B33 -> B33f, Fe2Bf, βB | Fe2Bf: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019 | Table 3, p. 15, row 20; `ORC-HJ6QBSQG3O` |  |
| 580 | magnetic: B33 -> B33f, Fe2Bf, βB | Fe2Bf: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Barinov 1991_ [doi](https://doi.org/10.1002/pssa.2211230217) | Table 3, p. 15, row 16; `ORC-VQNDOIGPXE` |  |
| 578 | magnetic: B33 -> B33f, Fe2Bf, βB | Fe2Bf: B 0.333333, Fe 0.666667 | unspecified | [1] Witusiewicz 2019; _cites Fries 2017_ | Table 3, p. 15, row 17; `ORC-3YCCU2S6CO` |  |
| 575 | magnetic: B33 -> B33f, Fe2Bf, βB | Fe2Bf: B 0.333333, Fe 0.666667 | experimental | [1] Witusiewicz 2019; _cites Fries 2017_ | Table 3, p. 15, row 18; `ORC-I4CSH2ZF6L` |  |

## Other properties

### Phase transition (15)

Table: Phase transition, B–Fe system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1424 K | 1424 | congruent transformation | model | [3] Palumbo 2001 | p. 4; `ORC-6A2LBEUB4K` | “A congruent melting of metastable FesB has been calculated at 1424 K, very close to a eutectic reaction of liquid with 25.7% at B which transform into Fe3B and FeB.” |
| Phase transition | 1813 K | 1813 | congruent melting: L⇄FeB | experimental | [2] Rompaey 2002; _cites Voroshnin 1970_ [doi](https://doi.org/10.1007/bf00652720) | Table 5, p. 6, row 7; `ORC-H2GICNVVF2` |  |
| Phase transition | 1863 K | 1863 | congruent melting: L⇄FeB | experimental | [2] Rompaey 2002; _cites Sidorenko 1977_ | Table 5, p. 6, row 9; `ORC-BDXWQ4MKAG` |  |
| Phase transition | 1863 K | 1863 | congruent melting: L⇄FeB | model | [2] Rompaey 2002; _cites Kubaschewski 1982_ | Table 5, p. 6, row 4; `ORC-G6IKM5W4GC` |  |
| Phase transition | 1863 K | 1863 | liquid -> FeB; _liquid: B 0.5; FeB: B 0.5_ | experimental | [3] Palumbo 2001; _cites ref. 77Sid_ | Table I, p. 8, row 9; `ORC-JOUPCA46PV` |  |
| Phase transition | 1866 K | 1866 | congruent melting: L⇄FeB; _L: Fe 0.5; FeB: Fe 0.5_ | model | [2] Rompaey 2002 | Table 5, p. 6, row 2; `ORC-A4WTS4LJ6C` |  |
| Phase transition | 1876 K | 1876 | congruent melting: L⇄FeB; _L: Fe 0.5; FeB: Fe 0.5_ | model | [2] Rompaey 2002 | Table 5, p. 6, row 1; `ORC-CXS3PISZ4I` |  |
| Phase transition | 1882 K | 1882 | liquid -> FeB; _liquid: B 0.5; FeB: B 0.5_ | model | [3] Palumbo 2001 | Table I, p. 8, row 7; `ORC-JLISASABEC` |  |
| Phase transition | 1894 K | 1894 | liquid -> FeB; _liquid: B 0.5; FeB: B 0.5_ | model | [3] Palumbo 2001 | Table I, p. 8, row 5; `ORC-6VGASTGDVL` |  |
| Phase transition | 1896 K | 1896 | liquid -> FeB; _liquid: B 0.5; FeB: B 0.5_ | model | [3] Palumbo 2001 | Table I, p. 8, row 6; `ORC-DTJXKNRXWR` |  |
| Phase transition | 1906 K | 1906 | congruent melting: L⇄FeB | model | [2] Rompaey 2002; _cites Hallemans 1994_ [doi](https://doi.org/10.1515/ijmr-1994-851002) | Table 5, p. 6, row 6; `ORC-DIREZXX4KM` |  |
| Phase transition | 1923 K | 1923 | congruent melting: L⇄FeB | model | [2] Rompaey 2002; _cites Massalski 1990_ | Table 5, p. 6, row 5; `ORC-6DDDCBQ6YB` |  |
| Phase transition | 1923 K | 1923 | congruent melting: L⇄FeB | experimental | [2] Rompaey 2002; _cites Portnoi 1969_ [doi](https://doi.org/10.1007/bf00775428) | Table 5, p. 6, row 8; `ORC-TCPQAOSYHK` |  |
| Phase transition | 1923 K | 1923 | liquid -> FeB; _liquid: B 0.5; FeB: B 0.5_ | experimental | [3] Palumbo 2001; _cites ref. 69Por_ | Table I, p. 8, row 8; `ORC-QRE4NFOB42` |  |
| Phase transition | 1930 K | 1930 | congruent melting: L⇄FeB | model | [2] Rompaey 2002; _cites Chart 1981_ | Table 5, p. 6, row 3; `ORC-OU5CRKJI3K` |  |

### Mixing / partial (18)

Table: Mixing / partial, B–Fe system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Enthalpy of mixing; _printed: ΔmixH_ | -6.656 kJ/mol-atom | 1173 | liquid; _alloy: B 0.992, Fe 0.008_ | model | [4] Zhou 2016 | Table II, p. 5, row 16; `ORC-2YGJJSPVKE` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -11.271 kJ/mol-atom | 1173 | liquid; _alloy: B 0.994, Fe 0.006_ | model | [4] Zhou 2016 | Table II, p. 5, row 11; `ORC-36BIPHYART` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -6.181 kJ/mol-atom | 1173 | liquid; _alloy: B 0.999, Fe 0.001_ | model | [4] Zhou 2016 | Table II, p. 5, row 2; `ORC-C55TNYZLBA` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -13.258 kJ/mol-atom | 1173 | liquid; _alloy: B 0.995, Fe 0.005_ | model | [4] Zhou 2016 | Table II, p. 5, row 10; `ORC-G64BEXM7O5` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -12.579 kJ/mol-atom | 1173 | liquid; _alloy: B 0.997, Fe 0.003_ | model | [4] Zhou 2016 | Table II, p. 5, row 6; `ORC-HCUO3T2OQH` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -10.042 kJ/mol-atom | 1173 | liquid; _alloy: B 0.993, Fe 0.007_ | model | [4] Zhou 2016 | Table II, p. 5, row 13; `ORC-HJMB7EVVIW` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -9.753 kJ/mol-atom | 1173 | liquid; _alloy: B 0.993, Fe 0.007_ | model | [4] Zhou 2016 | Table II, p. 5, row 14; `ORC-IIDR74DZNW` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -5.81 kJ/mol-atom | 1173 | liquid; _alloy: B 0.999, Fe 0.001_ | model | [4] Zhou 2016 | Table II, p. 5, row 1; `ORC-J6UCO7V7ZX` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -13.465 kJ/mol-atom | 1173 | liquid; _alloy: B 0.996, Fe 0.004_ | model | [4] Zhou 2016 | Table II, p. 5, row 8; `ORC-LCTYUEZDQ7` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -12.786 kJ/mol-atom | 1173 | liquid; _alloy: B 0.996, Fe 0.004_ | model | [4] Zhou 2016 | Table II, p. 5, row 7; `ORC-NV3QP4PDCE` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -11.954 kJ/mol-atom | 1173 | liquid; _alloy: B 0.994, Fe 0.006_ | model | [4] Zhou 2016 | Table II, p. 5, row 12; `ORC-OL2I62PKM2` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -11.872 kJ/mol-atom | 1173 | liquid; _alloy: B 0.997, Fe 0.003_ | model | [4] Zhou 2016 | Table II, p. 5, row 5; `ORC-OQ3Y6ULLIM` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -2.932 kJ/mol-atom | 1173 | liquid; _alloy: B 0.991, Fe 0.009_ | model | [4] Zhou 2016 | Table II, p. 5, row 17; `ORC-OX6DR57ES4` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -7.277 kJ/mol-atom | 1173 | liquid; _alloy: B 0.992, Fe 0.008_ | model | [4] Zhou 2016 | Table II, p. 5, row 15; `ORC-PWFT3S3XPH` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -9.7782 kJ/mol-atom | 1173 | liquid; _alloy: B 0.998, Fe 0.002_ | model | [4] Zhou 2016 | Table II, p. 5, row 3; `ORC-TLMCCMNTRP` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -12.544 kJ/mol-atom | 1173 | liquid; _alloy: B 0.995, Fe 0.005_ | model | [4] Zhou 2016 | Table II, p. 5, row 9; `ORC-UDSHZ42J6Q` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -10.125 kJ/mol-atom | 1173 | liquid; _alloy: B 0.998, Fe 0.002_ | model | [4] Zhou 2016 | Table II, p. 5, row 4; `ORC-USUSBUDPBN` |  |
| Enthalpy of mixing; _printed: ΔmixH_ | -3.751 kJ/mol-atom | 1173 | liquid; _alloy: B 0.991, Fe 0.009_ | model | [4] Zhou 2016 | Table II, p. 5, row 18; `ORC-WIJLCVKWK6` |  |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. V.T. Witusiewicz, A.A. Bondar, U. Hecht, A. Theofilatos, N.I. Tsyganenko, S.V. Utkin et al., Experimental study and thermodynamic re-modelling of the constituent binaries and ternary B–Fe–Ti system, Journal of Alloys and Compounds 800, 419-449 (2019). [doi:10.1016/j.jallcom.2019.05.341](https://doi.org/10.1016/j.jallcom.2019.05.341)
2. T Van Rompaey, K.C Hari Kumar, P Wollants, Thermodynamic optimization of the B–Fe system, Journal of Alloys and Compounds 334, 173-181 (2002). [doi:10.1016/s0925-8388(01)01777-7](https://doi.org/10.1016/s0925-8388%2801%2901777-7)
3. M. Palumbo, G. Cacciamani, E. Bosco, M. Baricco, Thermodynamic analysis of glass formation in Fe-B system, Calphad 25, 625-637 (2001). [doi:10.1016/s0364-5916(02)00012-3](https://doi.org/10.1016/s0364-5916%2802%2900012-3)
4. G. J. Zhou, Y. Luo, Y. Zhou, Thermodynamic Reassessment of the Nd-Fe-B Ternary System, Journal of Elec Materi 45, 418-425 (2016). [doi:10.1007/s11664-015-4112-y](https://doi.org/10.1007/s11664-015-4112-y)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569
- R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065

Also cite the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file.

Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

```bibtex
@misc{orchid_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).