Er–Fe system
117 accepted literature values from 4 paper(s) (experimental 39, model 77, unspecified 1); 4 calculated phase diagram(s). 8 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.
Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (8) · papers (bibliography) · Markdown
| Evidence class | Values |
|---|---|
| experimental | 39 |
| model | 77 |
| unspecified | 1 |
| Property group | Values |
|---|---|
| invariant reaction | 79 |
| phase transition | 14 |
| formation | 6 |
| mixing / partial | 18 |
Calculated phase diagrams
Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.
| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| ErFe-10Zho.tdb | G.J. Zhou, Z.W. Liu, D.C. Zeng, Z.P. Jin, Physica B, 405, 3590-93(2010). doi:10.1016/j.physb.2010.05.046 | 1040d981d623df87d259303a659860caded5369ac3b846b25f0865fedbb0a14a | viewer · TDB · JSON |
| ErFe-11Wan.tdb | W. Wang, C. Guo, C. Li, Z. Du, Calphad, 35, 292-301(2011). doi:10.1016/j.calphad.2011.04.001 | d3d26033abb0e6a68578eab4085937cbd7904c2d98acee85e6633bef09c27ffc | viewer · TDB · JSON |
| ErFe-12Wan.tdb | S.L. Wang, J.J. Han, C.P. Wang, S.Z. Kou, X.J. Liu, J. Alloys Compd., 513, 27-34(2012). doi:10.1016/j.jallcom.2011.08.014 | 9284f49a27f3fe26cd4e9cbfb85e35a2c84d72032ddb6dc08d5a7fccf8cfa84d | viewer · TDB · JSON |
| ErFe-23Ye.tdb | H. Ye, M. Rong, Q. Chen, Q. Yao, J. Wang, G. Rao, H. Zhou, J. Mater. Inf., 3, 15(2023). | d3f1e827a3153e9e4b23f5d6860e96cefd672743cc8668bb4c795e562eaab861 | viewer · TDB · JSON |
| TDB file | T (K) | Phases at the invariant |
|---|---|---|
| ErFe-10Zho.tdb | 1665.85 | LIQUID (x(Fe) 0.91793) + BCC_A2 (x(Fe) 0.99994) + FCC_A1 (x(Fe) 1) |
| ErFe-10Zho.tdb | 1665.85 | LIQUID (x(Fe) 0.91797) + BCC_A2 (x(Fe) 0.99994) + FCC_A1 (x(Fe) 1) |
| ErFe-10Zho.tdb | 1614.23 | LIQUID (x(Fe) 0.88338) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 1) |
| ErFe-10Zho.tdb | 1614.23 | LIQUID (x(Fe) 0.8834) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 1) |
| ErFe-10Zho.tdb | 1614.22 | LIQUID (x(Fe) 0.88286) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 1) |
| ErFe-10Zho.tdb | 1614.22 | LIQUID (x(Fe) 0.88294) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 1) |
| ErFe-10Zho.tdb | 1610.63 | ERFE2_C15 (x(Fe) 0.66667) + ERFE3 (x(Fe) 0.75) + LIQUID (x(Fe) 0.75988) |
| ErFe-10Zho.tdb | 1610.63 | ERFE2_C15 (x(Fe) 0.66667) + ERFE3 (x(Fe) 0.75) + LIQUID (x(Fe) 0.76038) |
| ErFe-10Zho.tdb | 1610.63 | ERFE2_C15 (x(Fe) 0.66667) + ERFE3 (x(Fe) 0.75) + LIQUID (x(Fe) 0.75987) |
| ErFe-10Zho.tdb | 1610.63 | ERFE2_C15 (x(Fe) 0.66667) + ERFE3 (x(Fe) 0.75) + LIQUID (x(Fe) 0.75985) |
| ErFe-10Zho.tdb | 1601.41 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.80947) |
| ErFe-10Zho.tdb | 1601.41 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.80948) |
| ErFe-10Zho.tdb | 1601.41 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.80904) |
| ErFe-10Zho.tdb | 1601.41 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.8095) |
| ErFe-10Zho.tdb | 1601.41 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.80903) |
| ErFe-10Zho.tdb | 1599.07 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.82639) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-10Zho.tdb | 1599.07 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.82551) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-10Zho.tdb | 1599.07 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.82551) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-10Zho.tdb | 1599.06 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.82592) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-10Zho.tdb | 1184.82 | ER2FE17 (x(Fe) 0.89474) + BCC_A2 (x(Fe) 1) + FCC_A1 (x(Fe) 1) |
| ErFe-10Zho.tdb | 1184.44 | HCP_A3 (x(Fe) 1.000e-5) + LIQUID (x(Fe) 0.30801) + ERFE2_C15 (x(Fe) 0.66667) |
| ErFe-10Zho.tdb | 1184.44 | HCP_A3 (x(Fe) 1.000e-5) + LIQUID (x(Fe) 0.308) + ERFE2_C15 (x(Fe) 0.66667) |
| ErFe-11Wan.tdb | 1658 | LIQUID (x(Fe) 0.9179) + BCC_A2 (x(Fe) 0.99966) + FCC_A1 (x(Fe) 1) |
| ErFe-11Wan.tdb | 1658 | LIQUID (x(Fe) 0.91795) + BCC_A2 (x(Fe) 0.99966) + FCC_A1 (x(Fe) 1) |
| ErFe-11Wan.tdb | 1619.21 | ER2FE17 (x(Fe) 0.89474) + LIQUID (x(Fe) 0.89517) + FCC_A1 (x(Fe) 1) |
| ErFe-11Wan.tdb | 1619.2 | LIQUID (x(Fe) 0.8947) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 1) |
| ErFe-11Wan.tdb | 1619.2 | LIQUID (x(Fe) 0.89458) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 1) |
| ErFe-11Wan.tdb | 1611.01 | ERFE2_C15 (x(Fe) 0.66667) + ERFE3 (x(Fe) 0.75) + LIQUID (x(Fe) 0.76457) |
| ErFe-11Wan.tdb | 1611.01 | ERFE2_C15 (x(Fe) 0.66667) + ERFE3 (x(Fe) 0.75) + LIQUID (x(Fe) 0.76493) |
| ErFe-11Wan.tdb | 1611.01 | ERFE2_C15 (x(Fe) 0.66667) + ERFE3 (x(Fe) 0.75) + LIQUID (x(Fe) 0.76402) |
| ErFe-11Wan.tdb | 1600.37 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.81765) |
| ErFe-11Wan.tdb | 1600.24 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.81864) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-11Wan.tdb | 1188.27 | HCP_A3 (x(Fe) 0) + LIQUID (x(Fe) 0.28055) + ERFE2_C15 (x(Fe) 0.66667) |
| ErFe-11Wan.tdb | 1188.27 | HCP_A3 (x(Fe) 0) + LIQUID (x(Fe) 0.28054) + ERFE2_C15 (x(Fe) 0.66667) |
| ErFe-11Wan.tdb | 1184.84 | ER2FE17 (x(Fe) 0.89474) + BCC_A2 (x(Fe) 1) + FCC_A1 (x(Fe) 1) |
| ErFe-12Wan.tdb | 1658.14 | LIQUID (x(Fe) 0.91058) + BCC_A2 (x(Fe) 0.98333) + FCC_A1 (x(Fe) 0.98377) |
| ErFe-12Wan.tdb | 1625.28 | LIQUID (x(Fe) 0.89144) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 0.98085) |
| ErFe-12Wan.tdb | 1625.28 | LIQUID (x(Fe) 0.89148) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 0.98086) |
| ErFe-12Wan.tdb | 1616.08 | ERFE2_C15 (x(Fe) 0.66667) + ERFE3 (x(Fe) 0.75) + LIQUID (x(Fe) 0.75005) |
| ErFe-12Wan.tdb | 1616.08 | ERFE2_C15 (x(Fe) 0.66667) + LIQUID (x(Fe) 0.74942) + ERFE3 (x(Fe) 0.75) |
| ErFe-12Wan.tdb | 1616.08 | ERFE2_C15 (x(Fe) 0.66667) + LIQUID (x(Fe) 0.74938) + ERFE3 (x(Fe) 0.75) |
| ErFe-12Wan.tdb | 1616.07 | ERFE2_C15 (x(Fe) 0.66667) + LIQUID (x(Fe) 0.74977) + ERFE3 (x(Fe) 0.75) |
| ErFe-12Wan.tdb | 1603.53 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.80935) |
| ErFe-12Wan.tdb | 1603.53 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.80849) |
| ErFe-12Wan.tdb | 1603.53 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.80934) |
| ErFe-12Wan.tdb | 1603.53 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.80848) |
| ErFe-12Wan.tdb | 1603.52 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.80898) |
| ErFe-12Wan.tdb | 1600.86 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.82338) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-12Wan.tdb | 1600.86 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.82332) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-12Wan.tdb | 1600.86 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.82392) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-12Wan.tdb | 1600.86 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.82393) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-12Wan.tdb | 1189.08 | HCP_A3 (x(Fe) 0.00228) + LIQUID (x(Fe) 0.31228) + ERFE2_C15 (x(Fe) 0.66667) |
| ErFe-12Wan.tdb | 1189.08 | HCP_A3 (x(Fe) 0.00229) + LIQUID (x(Fe) 0.31225) + ERFE2_C15 (x(Fe) 0.66667) |
| ErFe-12Wan.tdb | 1182.93 | ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 0.99922) + BCC_A2 (x(Fe) 0.99939) |
| ErFe-12Wan.tdb | 1182.93 | ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 0.99923) + BCC_A2 (x(Fe) 0.9994) |
| ErFe-12Wan.tdb | 587.78 | ERFE2_C15 (x(Fe) 0.66667) + ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) |
| ErFe-12Wan.tdb | 462.23 | ER6FE23_D8A (x(Fe) 0.7931) + ER2FE17 (x(Fe) 0.89474) + BCC_A2 (x(Fe) 1) |
| ErFe-23Ye.tdb | 1661.49 | LIQUID (x(Fe) 0.91555) + BCC_A2 (x(Fe) 0.99979) + FCC_A1 (x(Fe) 1) |
| ErFe-23Ye.tdb | 1661.49 | LIQUID (x(Fe) 0.91566) + BCC_A2 (x(Fe) 0.99979) + FCC_A1 (x(Fe) 1) |
| ErFe-23Ye.tdb | 1625.17 | LIQUID (x(Fe) 0.89366) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 1) |
| ErFe-23Ye.tdb | 1625.17 | LIQUID (x(Fe) 0.8935) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 1) |
| ErFe-23Ye.tdb | 1625.17 | LIQUID (x(Fe) 0.89413) + ER2FE17 (x(Fe) 0.89474) + FCC_A1 (x(Fe) 1) |
| ErFe-23Ye.tdb | 1615.02 | ERFE2_C15 (x(Fe) 0.66667) + LIQUID (x(Fe) 0.74951) + ERFE3 (x(Fe) 0.75) |
| ErFe-23Ye.tdb | 1615.02 | ERFE2_C15 (x(Fe) 0.66667) + LIQUID (x(Fe) 0.74973) + ERFE3 (x(Fe) 0.75) |
| ErFe-23Ye.tdb | 1615.02 | ERFE2_C15 (x(Fe) 0.66667) + LIQUID (x(Fe) 0.74925) + ERFE3 (x(Fe) 0.75) |
| ErFe-23Ye.tdb | 1615.02 | ERFE2_C15 (x(Fe) 0.66667) + LIQUID (x(Fe) 0.74924) + ERFE3 (x(Fe) 0.75) |
| ErFe-23Ye.tdb | 1602.73 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.81133) |
| ErFe-23Ye.tdb | 1602.73 | ERFE3 (x(Fe) 0.75) + ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.81109) |
| ErFe-23Ye.tdb | 1601.82 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.81766) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-23Ye.tdb | 1601.82 | ER6FE23_D8A (x(Fe) 0.7931) + LIQUID (x(Fe) 0.81791) + ER2FE17 (x(Fe) 0.89474) |
| ErFe-23Ye.tdb | 1185.54 | HCP_A3 (x(Fe) 4.000e-5) + LIQUID (x(Fe) 0.33143) + ERFE2_C15 (x(Fe) 0.66667) |
| ErFe-23Ye.tdb | 1185.54 | HCP_A3 (x(Fe) 4.000e-5) + LIQUID (x(Fe) 0.33142) + ERFE2_C15 (x(Fe) 0.66667) |
| ErFe-23Ye.tdb | 1184.83 | ER2FE17 (x(Fe) 0.89474) + BCC_A2 (x(Fe) 1) + FCC_A1 (x(Fe) 1) |
Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull ErFe-10Zho · CALPHAD hull ErFe-11Wan · CALPHAD hull ErFe-12Wan
Invariant reactions (literature)
| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|
| 1667.5 | metatectic/catatectic: bcc(δ-Fe) -> fcc(γ-Fe) + L | L: Fe 0.919 | model | [1] Ye 2023 cites ref. 110 | Table 8, p. 14, row 2 report | |
| 1661.5 | metatectic/catatectic: bcc(δ-Fe) -> fcc(γ-Fe) + L | L: Fe 0.916 | model | [1] Ye 2023 | Table 8, p. 14, row 5 report | |
| 1658.15 | eutectoid: (δFe) ↔ (γFe) + L | experimental | [2] Wang 2012 cites Buschow 1969 doi | Table 2, p. 3, row 1 report | ||
| 1658.15 | eutectoid: (δFe) ↔ (γFe) + L | (δFe): Er 0.0167; (γFe): Er 0.0163; L: Er 0.0895 | model | [2] Wang 2012 | Table 2, p. 3, row 2 report | |
| 1658 | bcc -> liq. + fcc | bcc: Fe 0.989; L: Fe 0.9; fcc: Fe 0.995 | experimental | [3] Wang 2011 cites Buschow 1969 doi | Table 3, p. 9, row 2 report | |
| 1658 | metatectic/catatectic: bcc(δ-Fe) -> fcc(γ-Fe) + L | L: Fe 0.911 | model | [1] Ye 2023 cites ref. 112 | Table 8, p. 14, row 4 report | |
| 1658 | metatectic/catatectic: bcc(δ-Fe) -> fcc(γ-Fe) + L | L: Fe 0.918 | model | [1] Ye 2023 cites ref. 111 | Table 8, p. 14, row 3 report | |
| 1658 | bcc -> liq. + fcc | bcc: Fe 0.9997; L: Fe 0.9179; fcc: Fe 1 | model | [3] Wang 2011 | Table 3, p. 9, row 1 report | |
| 1658 | metatectic/catatectic: bcc(δ-Fe) -> fcc(γ-Fe) + L | L: Fe 0.9 | experimental | [1] Ye 2023 cites ref. 106 | Table 8, p. 14, row 1 report | |
| 1636.15 | congruent melting: L ↔ Fe2Er | Fe2Er: Er 0.333 | model | [2] Wang 2012 | Table 2, p. 3, row 12 report | |
| 1633.15 | congruent melting: L ↔ Fe2Er | Fe2Er: Er 0.333 | experimental | [2] Wang 2012 cites Buschow 1969 doi | Table 2, p. 3, row 11 report | |
| 1630 | peritectic: L + fcc(γ-Fe) -> Fe17Er2 | L: Fe 0.894 | model | [1] Ye 2023 cites (cal | Table 8, p. 14, row 11 report | |
| 1628.15 | peritectic: L + (γFe) ↔ Fe17Er2 | Fe17Er2: Er 0.105 | experimental | [2] Wang 2012 cites Buschow 1969 doi | Table 2, p. 3, row 3 report | |
| 1628 | peritectic: L + fcc-Fe ↔ Fe17Er2 | experimental | [1] Ye 2023 | p. 5 report | Fe17Er2, Fe23Er6, and Fe3Er are produced by three peritectic transformations (L + fcc-Fe ↔ Fe17Er2 at 1628 K, L + Fe3Er ↔ Fe23Er6 at 1,603 K, and L + Fe2Er ↔ Fe3Er at 1,618 K), while Fe2Er melts congruently at 1,633 K. | |
| 1628 | peritectic: L + fcc(γ-Fe) -> Fe17Er2 | L: Fe 0.896 | experimental | [1] Ye 2023 cites ref. 106 | Table 8, p. 14, row 7 report | |
| 1628 | peritectic: L+Fcc(Fe) -> Fe17Er2 | L: Fe 0.895; Fcc(Fe): Fe 1; Fe17Er2: Fe 0.894737 | experimental | [4] Zhou 2010 cites Buschow 1969 doi | Table 3, p. 3, row 9 report | |
| 1628 | liq. + fcc -> Er2Fe17 | L: Fe 0.88; fcc: Fe 1; Er2Fe17: Er 0.105263, Fe 0.894737 | experimental | [3] Wang 2011 cites Buschow 1969 doi | Table 3, p. 9, row 4 report | |
| 1626.15 | peritectic: L + (γFe) ↔ Fe17Er2 | L: Er 0.108; (γFe): Er 0.019; Fe17Er2: Er 0.105 | model | [2] Wang 2012 | Table 2, p. 3, row 4 report | |
| 1626 | peritectic: L + fcc(γ-Fe) -> Fe17Er2 | L: Fe 0.892 | model | [1] Ye 2023 cites ref. 112 | Table 8, p. 14, row 10 report | |
| 1625.1 | peritectic: L + fcc(γ-Fe) -> Fe17Er2 | L: Fe 0.894 | model | [1] Ye 2023 | Table 8, p. 14, row 12 report | |
| 1619 | peritectic: L + fcc(γ-Fe) -> Fe17Er2 | L: Fe 0.895 | model | [1] Ye 2023 cites ref. 111 | Table 8, p. 14, row 9 report | |
| 1619 | liq. + fcc -> Er2Fe17 | L: Fe 0.8947; fcc: Fe 1; Er2Fe17: Er 0.105263, Fe 0.894737 | model | [3] Wang 2011 | Table 3, p. 9, row 3 report | |
| 1618.15 | peritectic: L + Fe2Er ↔ Fe3Er | Fe2Er: Er 0.333; Fe3Er: Er 0.25 | experimental | [2] Wang 2012 cites Buschow 1969 doi | Table 2, p. 3, row 9 report | |
| 1618 | peritectic: L + Fe2Er ↔ Fe3Er | experimental | [1] Ye 2023 | p. 5 report | Fe17Er2, Fe23Er6, and Fe3Er are produced by three peritectic transformations (L + fcc-Fe ↔ Fe17Er2 at 1628 K, L + Fe3Er ↔ Fe23Er6 at 1,603 K, and L + Fe2Er ↔ Fe3Er at 1,618 K), while Fe2Er melts congruently at 1,633 K. | |
| 1618 | peritectic: L+Fe2Er -> Fe3ER | L: Fe 0.76; Fe2Er: Fe 0.666667; Fe3ER: Fe 0.75 | experimental | [4] Zhou 2010 cites Buschow 1969 doi | Table 3, p. 3, row 5 report | |
| 1618 | peritectic: L + Fe2Er -> Fe3Er | L: Fe 0.752 | experimental | [1] Ye 2023 cites ref. 106 | Table 8, p. 14, row 25 report | |
| 1618 | liq. + ErFe2 -> ErFe3 | L: Fe 0.755; ErFe2: Er 0.333333, Fe 0.666667; ErFe3: Er 0.25, Fe 0.75 | experimental | [3] Wang 2011 cites Buschow 1969 doi | Table 3, p. 9, row 6 report | |
| 1616 | peritectic: L+Fcc(Fe) -> Fe17Er2 | Fcc(Fe): Fe 1; Fe17Er2: Fe 0.894737 | unspecified | [4] Zhou 2010 | Table 3, p. 3, row 10 report | |
| 1616 | peritectic: L + fcc(γ-Fe) -> Fe17Er2 | L: Fe 0.895 | model | [1] Ye 2023 cites ref. 110 | Table 8, p. 14, row 8 report | |
| 1615.85 | peritectic: L + Fe2Er ↔ Fe3Er | L: Er 0.25; Fe2Er: Er 0.333; Fe3Er: Er 0.25 | model | [2] Wang 2012 | Table 2, p. 3, row 10 report | |
| 1615.7 | peritectic: L + Fe2Er -> Fe3Er | L: Fe 0.75 | model | [1] Ye 2023 cites ref. 112 | Table 8, p. 14, row 28 report | |
| 1615 | peritectic: L + Fe2Er -> Fe3Er | L: Fe 0.75 | model | [1] Ye 2023 | Table 8, p. 14, row 30 report | |
| 1612 | peritectic: L + Fe2Er -> Fe3Er | L: Fe 0.721 | model | [1] Ye 2023 cites (cal | Table 8, p. 14, row 29 report | |
| 1611 | peritectic: L+Fe2Er -> Fe3ER | Fe2Er: Fe 0.666667; Fe3ER: Fe 0.75 | model | [4] Zhou 2010 | Table 3, p. 3, row 6 report | |
| 1611 | peritectic: L + Fe2Er -> Fe3Er | L: Fe 0.765 | model | [1] Ye 2023 cites ref. 111 | Table 8, p. 14, row 27 report | |
| 1611 | peritectic: L + Fe2Er -> Fe3Er | L: Fe 0.76 | model | [1] Ye 2023 cites ref. 110 | Table 8, p. 14, row 26 report | |
| 1611 | liq. + ErFe2 -> ErFe3 | L: Fe 0.7647; ErFe2: Er 0.333333, Fe 0.666667; ErFe3: Er 0.25, Fe 0.75 | model | [3] Wang 2011 | Table 3, p. 9, row 5 report | |
| 1603.15 | peritectic: L + Fe3Er ↔ Fe23Er6 | Fe3Er: Er 0.25; Fe23Er6: Er 0.207 | experimental | [2] Wang 2012 cites Buschow 1969 doi | Table 2, p. 3, row 7 report | |
| 1603 | peritectic: L + Fe3Er ↔ Fe23Er6 | experimental | [1] Ye 2023 | p. 5 report | Fe17Er2, Fe23Er6, and Fe3Er are produced by three peritectic transformations (L + fcc-Fe ↔ Fe17Er2 at 1628 K, L + Fe3Er ↔ Fe23Er6 at 1,603 K, and L + Fe2Er ↔ Fe3Er at 1,618 K), while Fe2Er melts congruently at 1,633 K. | |
| 1603 | peritectic: L+ Fe3Er -> Fe23Er6 | L: Fe 0.803 | experimental | [1] Ye 2023 cites ref. 106 | Table 8, p. 14, row 19 report | |
| 1603 | peritectic: L+Fe3Er -> Fe23Er6 | L: Fe 0.809; Fe3Er: Fe 0.75; Fe23Er6: Fe 0.793103 | experimental | [4] Zhou 2010 cites Buschow 1969 doi | Table 3, p. 3, row 7 report | |
| 1603 | liq. + ErFe3 -> Er6Fe23 | L: Fe 0.8; ErFe3: Er 0.25, Fe 0.75; Er6Fe23: Er 0.206897, Fe 0.793103 | experimental | [3] Wang 2011 cites Buschow 1969 doi | Table 3, p. 9, row 8 report | |
| 1602.85 | peritectic: L + Fe3Er ↔ Fe23Er6 | L: Er 0.19; Fe3Er: Er 0.25; Fe23Er6: Er 0.207 | model | [2] Wang 2012 | Table 2, p. 3, row 8 report | |
| 1602.7 | peritectic: L+ Fe3Er -> Fe23Er6 | L: Fe 0.811 | model | [1] Ye 2023 | Table 8, p. 14, row 24 report | |
| 1602.7 | peritectic: L+ Fe3Er -> Fe23Er6 | L: Fe 0.81 | model | [1] Ye 2023 cites ref. 112 | Table 8, p. 14, row 22 report | |
| 1601.8 | eutectic: L -> Fe17Er2 + Fe23Er6 | L: Fe 0.818 | model | [1] Ye 2023 | Table 8, p. 14, row 18 report | |
| 1601 | peritectic: L+ Fe3Er -> Fe23Er6 | L: Fe 0.809 | model | [1] Ye 2023 cites ref. 110 | Table 8, p. 14, row 20 report | |
| 1601 | peritectic: L+Fe3Er -> Fe23Er6 | Fe3Er: Fe 0.75; Fe23Er6: Fe 0.793103 | model | [4] Zhou 2010 | Table 3, p. 3, row 8 report | |
| 1600.65 | eutectic: L ↔ Fe17Er2 + Fe23Er6 | L: Er 0.178; Fe17Er2: Er 0.105; Fe23Er6: Er 0.207 | model | [2] Wang 2012 | Table 2, p. 3, row 6 report | |
| 1600.5 | eutectic: L -> Fe17Er2 + Fe23Er6 | L: Fe 0.822 | model | [1] Ye 2023 cites ref. 112 | Table 8, p. 14, row 16 report | |
| 1600 | liq. + ErFe3 -> Er6Fe23 | L: Fe 0.8177; ErFe3: Er 0.25, Fe 0.75; Er6Fe23: Er 0.206897, Fe 0.793103 | model | [3] Wang 2011 | Table 3, p. 9, row 7 report | |
| 1600 | eutectic: L -> Fe17Er2 + Fe23Er6 | L: Fe 0.819 | model | [1] Ye 2023 cites ref. 111 | Table 8, p. 14, row 15 report | |
| 1600 | peritectic: L+ Fe3Er -> Fe23Er6 | L: Fe 0.818 | model | [1] Ye 2023 cites ref. 111 | Table 8, p. 14, row 21 report | |
| 1600 | eutectic: liq. -> Er6Fe23 + Er2Fe17 | L: Fe 0.8186; Er6Fe23: Er 0.206897, Fe 0.793103; Er2Fe17: Er 0.105263, Fe 0.894737 | model | [3] Wang 2011 | Table 3, p. 9, row 9 report | |
| 1599 | eutectic: L -> Fe17Er2 + Fe23Er6 | L: Fe 0.826 | model | [1] Ye 2023 cites ref. 110 | Table 8, p. 14, row 14 report | |
| 1599 | eutectic: L -> Fe23Er6+Fe17Er2 | L: Fe 0.826; Fe23Er6: Fe 0.793103; Fe17Er2: Fe 0.894737 | model | [4] Zhou 2010 | Table 3, p. 3, row 4 report | |
| 1595 | peritectic: L+ Fe3Er -> Fe23Er6 | L: Fe 0.798 | model | [1] Ye 2023 cites (cal | Table 8, p. 14, row 23 report | |
| 1588.15 | eutectic: L ↔ Fe17Er2 + Fe23Er6 | L: Er 0.165; Fe17Er2: Er 0.105; Fe23Er6: Er 0.207 | experimental | [2] Wang 2012 cites Buschow 1969 doi | Table 2, p. 3, row 5 report | |
| 1588 | eutectic: L -> Fe23Er6+Fe17Er2 | L: Fe 0.835; Fe23Er6: Fe 0.793103; Fe17Er2: Fe 0.894737 | experimental | [4] Zhou 2010 cites Buschow 1969 doi | Table 3, p. 3, row 3 report | |
| 1588 | eutectic: L ↔ Fe17Er2 + Fe23Er6 | experimental | [1] Ye 2023 cites ref. 106 | p. 5 report | The experimental results[106-108] show two eutectic transformations (L ↔ Fe17Er2 + Fe23Er6 at 1,588 K and L ↔ Fe2Er + hcp-Er at 1,188 K). | |
| 1588 | eutectic: liq. -> Er6Fe23 + Er2Fe17 | L: Fe 0.835; Er6Fe23: Er 0.206897, Fe 0.793103; Er2Fe17: Er 0.105263, Fe 0.894737 | experimental | [3] Wang 2011 cites Buschow 1969 doi | Table 3, p. 9, row 10 report | |
| 1588 | eutectic: L -> Fe17Er2 + Fe23Er6 | L: Fe 0.835 | experimental | [1] Ye 2023 cites ref. 106 | Table 8, p. 14, row 13 report | |
| 1581 | eutectic: L -> Fe17Er2 + Fe23Er6 | L: Fe 0.829 | model | [1] Ye 2023 cites (cal | Table 8, p. 14, row 17 report | |
| 1189 | eutectic: L -> Fe2Er + hcp-Er | L: Fe 0.316 | model | [1] Ye 2023 cites (cal | Table 8, p. 14, row 41 report | |
| 1189 | eutectic: liq. -> hcp + ErFe2 | L: Fe 0.2806; hcp: Fe 1.000e-4; ErFe2: Er 0.333333, Fe 0.666667 | model | [3] Wang 2011 | Table 3, p. 9, row 11 report | |
| 1189 | eutectic: L -> Fe2Er + hcp-Er | L: Fe 0.281 | model | [1] Ye 2023 cites ref. 111 | Table 8, p. 14, row 39 report | |
| 1188.15 | eutectic: L ↔ Fe2Er + (Er) | L: Er 0.7; Fe2Er: Er 0.333; (Er): Er 1 | experimental | [2] Wang 2012 cites Buschow 1969 doi | Table 2, p. 3, row 13 report | |
| 1188.05 | eutectic: L ↔ Fe2Er + (Er) | L: Er 0.687; Fe2Er: Er 0.333; (Er): Er 1 | model | [2] Wang 2012 | Table 2, p. 3, row 14 report | |
| 1188 | eutectic: liq. -> hcp + ErFe2 | L: Fe 0.3; ErFe2: Er 0.333333, Fe 0.666667 | experimental | [3] Wang 2011 cites Buschow 1969 doi | Table 3, p. 9, row 12 report | |
| 1188 | eutectic: L ↔ Fe2Er + hcp-Er | experimental | [1] Ye 2023 cites ref. 106 | p. 5 report | The experimental results[106-108] show two eutectic transformations (L ↔ Fe17Er2 + Fe23Er6 at 1,588 K and L ↔ Fe2Er + hcp-Er at 1,188 K). | |
| 1188 | eutectic: L -> hcp (Er)+Fe2Er | L: Fe 0.3; Fe2Er: Fe 0.666667 | experimental | [4] Zhou 2010 cites Buschow 1969 doi | Table 3, p. 3, row 1 report | |
| 1188 | eutectic: L -> Fe2Er + hcp-Er | L: Fe 0.3 | experimental | [1] Ye 2023 cites ref. 106 | Table 8, p. 14, row 37 report | |
| 1187.9 | eutectic: L -> Fe2Er + hcp-Er | L: Fe 0.313 | model | [1] Ye 2023 cites ref. 112 | Table 8, p. 14, row 40 report | |
| 1186 | Er2Fe17 + fcc -> bcc | Er2Fe17: Er 0.105263, Fe 0.894737; fcc: Fe 1; bcc: Fe 1 | model | [3] Wang 2011 | Table 3, p. 9, row 13 report | |
| 1185.6 | eutectic: L -> Fe2Er + hcp-Er | L: Fe 0.331 | model | [1] Ye 2023 | Table 8, p. 14, row 42 report | |
| 1185 | eutectic: L -> Fe2Er + hcp-Er | L: Fe 0.308 | model | [1] Ye 2023 cites ref. 110 | Table 8, p. 14, row 38 report | |
| 1185 | eutectic: L -> hcp (Er)+Fe2Er | L: Fe 0.308; Fe2Er: Fe 0.666667 | model | [4] Zhou 2010 | Table 3, p. 3, row 2 report | |
| 1185 | Er2Fe17 + fcc -> bcc | Er2Fe17: Er 0.105263, Fe 0.894737; fcc: Fe 1; bcc: Fe 1 | experimental | [3] Wang 2011 cites Buschow 1969 doi | Table 3, p. 9, row 14 report | |
| 1184.8 | peritectoid: Fe17Er2 + fcc(γ-Fe) -> bcc(α-Fe) | model | [1] Ye 2023 | Table 8, p. 14, row 6 report |
Formation enthalpies
Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.
| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|---|
| Fe17Er2 | Er2Fe17 | -9.85 kJ/mol-atom | 298.15 | model | -1.801 (mp-aaaaacoi) | -2.176 (oqmd-91107) | [4] Zhou 2010 | Table 4, p. 3, row 1 report | |
| Fe23Er6 | Er6Fe23 | -11.1 kJ/mol-atom | 298.15 | model | -6.997 (mp-aaaaadfe) | -6.957 (oqmd-29960) | [4] Zhou 2010 | Table 4, p. 3, row 2 report | |
| Fe2Er | ErFe2 | -12.5 kJ/mol-atom | 298.15 | model | -11.663 (mp-aaaaaasg) | -11.54 (oqmd-20826) | [4] Zhou 2010 | Table 4, p. 3, row 6 report | |
| Fe2Er | ErFe2 | -12.5 kJ/mol-atom | 298.15 | experimental | -11.663 (mp-aaaaaasg) | -11.54 (oqmd-20826) | [4] Zhou 2010 cites Norgren 1998 doi | Table 4, p. 3, row 5 report | |
| Fe3Er | ErFe3 | -11.6 kJ/mol-atom | 298.15 | model | -9.581 (mp-aaabgkwt) | -9.688 (oqmd-29959) | [4] Zhou 2010 | Table 4, p. 3, row 4 report | |
| Fe3Er | ErFe3 | -7.9 kJ/mol-atom | 298.15 | experimental | -9.581 (mp-aaabgkwt) | -9.688 (oqmd-29959) | [4] Zhou 2010 cites Norgren 1998 doi | Table 4, p. 3, row 3 report |
Other properties
Phase transition (14)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Phase transition | 1603 K | 1603 | Fe23Er6 | experimental | [4] Zhou 2010 | p. 1 report | Among them, Fe3Er, Fe23Er6, and Fe17Er2 decompose at 1618, 1603, and 1628 K, respectively. |
| Phase transition | 1618 K | 1618 | Fe3Er | experimental | [4] Zhou 2010 | p. 1 report | Among them, Fe3Er, Fe23Er6, and Fe17Er2 decompose at 1618, 1603, and 1628 K, respectively. |
| Phase transition | 1628 K | 1628 | Fe17Er2 | experimental | [4] Zhou 2010 | p. 1 report | Among them, Fe3Er, Fe23Er6, and Fe17Er2 decompose at 1618, 1603, and 1628 K, respectively. |
| Phase transition | 1632 K | 1632 | congruent melting: L -> Fe2Er L: Fe 0.667 | model | [1] Ye 2023 cites ref. 110 | Table 8, p. 14, row 32 report | |
| Phase transition | 1632 K | 1632 | congruent melting: L -> Fe2Er L: Fe 0.666667; Fe2Er: Fe 0.666667 | model | [4] Zhou 2010 | Table 3, p. 3, row 12 report | |
| Phase transition | 1632 K | 1632 | congruent transformation | model | [4] Zhou 2010 | p. 3 report | As shown in this table, the calculated congruent-melting point of the Fe2Er phases is 1632 K, which fit well with the work of Buschow and Van der Goot [11]. |
| Phase transition | 1633 K | 1633 | congruent melting: L -> Fe2Er L: Fe 0.667 | experimental | [1] Ye 2023 cites ref. 106 | Table 8, p. 14, row 31 report | |
| Phase transition | 1633 K | 1633 | congruent melting: L -> Fe2Er L: Fe 0.667 | model | [1] Ye 2023 cites ref. 111 | Table 8, p. 14, row 33 report | |
| Phase transition | 1633 K | 1633 | congruent melting: L -> Fe2Er L: Fe 0.667 | model | [1] Ye 2023 cites (cal | Table 8, p. 14, row 35 report | |
| Phase transition | 1633 K | 1633 | congruent melting: L -> Fe2Er L: Fe 0.666667; Fe2Er: Fe 0.666667 | experimental | [4] Zhou 2010 cites Buschow 1969 doi | Table 3, p. 3, row 11 report | |
| Phase transition | 1633 K | 1633 | congruent transformation | experimental | [1] Ye 2023 | p. 5 report | Fe17Er2, Fe23Er6, and Fe3Er are produced by three peritectic transformations (L + fcc-Fe ↔ Fe17Er2 at 1628 K, L + Fe3Er ↔ Fe23Er6 at 1,603 K, and L + Fe2Er ↔ Fe3Er at 1,618 K), while Fe2Er melts congruently at 1,633 K. |
| Phase transition | 1633 K | 1633 | congruent transformation | experimental | [4] Zhou 2010 | p. 1 report | Fe2Er melt congruently decompose at 1633 K. |
| Phase transition | 1636 K | 1636 | congruent melting: L -> Fe2Er L: Fe 0.667 | model | [1] Ye 2023 cites ref. 112 | Table 8, p. 14, row 34 report | |
| Phase transition | 1640.4 K | 1640.4 | congruent melting: L -> Fe2Er L: Fe 0.667 | model | [1] Ye 2023 | Table 8, p. 14, row 36 report |
Mixing / partial (18)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Enthalpy of mixing printed: ΔmixH | -6.43448 kJ/mol-atom | 1573 | liquid alloy: Fe 0.007 | model | [4] Zhou 2010 | Table 5, p. 4, row 14 report | |
| Enthalpy of mixing printed: ΔmixH | -2.86302 kJ/mol-atom | 1573 | liquid alloy: Fe 0.002 | model | [4] Zhou 2010 | Table 5, p. 4, row 3 report | |
| Enthalpy of mixing printed: ΔmixH | -1.47969 kJ/mol-atom | 1573 | liquid alloy: Fe 0.001 | model | [4] Zhou 2010 | Table 5, p. 4, row 1 report | |
| Enthalpy of mixing printed: ΔmixH | -8.14493 kJ/mol-atom | 1573 | liquid alloy: Fe 0.006 | model | [4] Zhou 2010 | Table 5, p. 4, row 12 report | |
| Enthalpy of mixing printed: ΔmixH | -6.08152 kJ/mol-atom | 1573 | liquid alloy: Fe 0.005 | model | [4] Zhou 2010 | Table 5, p. 4, row 9 report | |
| Enthalpy of mixing printed: ΔmixH | -4.66667 kJ/mol-atom | 1573 | liquid alloy: Fe 0.001 | model | [4] Zhou 2010 | Table 5, p. 4, row 2 report | |
| Enthalpy of mixing printed: ΔmixH | -2.05797 kJ/mol-atom | 1573 | liquid alloy: Fe 0.009 | model | [4] Zhou 2010 | Table 5, p. 4, row 18 report | |
| Enthalpy of mixing printed: ΔmixH | -2.1508 kJ/mol-atom | 1573 | liquid alloy: Fe 0.009 | model | [4] Zhou 2010 | Table 5, p. 4, row 17 report | |
| Enthalpy of mixing printed: ΔmixH | -4.4058 kJ/mol-atom | 1573 | liquid alloy: Fe 0.008 | model | [4] Zhou 2010 | Table 5, p. 4, row 16 report | |
| Enthalpy of mixing printed: ΔmixH | -7.3913 kJ/mol-atom | 1573 | liquid alloy: Fe 0.002 | model | [4] Zhou 2010 | Table 5, p. 4, row 4 report | |
| Enthalpy of mixing printed: ΔmixH | -6.14653 kJ/mol-atom | 1573 | liquid alloy: Fe 0.006 | model | [4] Zhou 2010 | Table 5, p. 4, row 11 report | |
| Enthalpy of mixing printed: ΔmixH | -5.29093 kJ/mol-atom | 1573 | liquid alloy: Fe 0.004 | model | [4] Zhou 2010 | Table 5, p. 4, row 7 report | |
| Enthalpy of mixing printed: ΔmixH | -9.15421 kJ/mol-atom | 1573 | liquid alloy: Fe 0.003 | model | [4] Zhou 2010 | Table 5, p. 4, row 6 report | |
| Enthalpy of mixing printed: ΔmixH | -5.48 kJ/mol-atom | 1573 | liquid alloy: Fe 0.007 | model | [4] Zhou 2010 | Table 5, p. 4, row 13 report | |
| Enthalpy of mixing printed: ΔmixH | -9.30435 kJ/mol-atom | 1573 | liquid alloy: Fe 0.005 | model | [4] Zhou 2010 | Table 5, p. 4, row 10 report | |
| Enthalpy of mixing printed: ΔmixH | -4.1664 kJ/mol-atom | 1573 | liquid alloy: Fe 0.003 | model | [4] Zhou 2010 | Table 5, p. 4, row 5 report | |
| Enthalpy of mixing printed: ΔmixH | -4.06706 kJ/mol-atom | 1573 | liquid alloy: Fe 0.008 | model | [4] Zhou 2010 | Table 5, p. 4, row 15 report | |
| Enthalpy of mixing printed: ΔmixH | -9.62319 kJ/mol-atom | 1573 | liquid alloy: Fe 0.004 | model | [4] Zhou 2010 | Table 5, p. 4, row 8 report |
Sources
Reporting papers the values were read from (a value cited from another work names that work in its row).
- Hongjian Ye, Maohua Rong, Qing Chen, Qingrong Yao, Jiang Wang, Guanghui Rao et al., Assessment of phase equilibria and thermodynamic properties in the Fe-RE (RE = rare earth metals) binary systems, J Mater Inf 3 (2023). doi:10.20517/jmi.2023.08
- S.L. Wang, J.J. Han, C.P. Wang, S.Z. Kou, X.J. Liu, Thermodynamic assessment and the composition prediction of amorphous alloy in the Fe–B–Er alloy system, Journal of Alloys and Compounds 513, 27-34 (2012). doi:10.1016/j.jallcom.2011.08.014
- Wei Wang, Cuiping Guo, Changrong Li, Zhenmin Du, Thermodynamic description of the Er–Fe–Sb system, Calphad 35, 292-301 (2011). doi:10.1016/j.calphad.2011.04.001
- G.J. Zhou, Z.W. Liu, D.C. Zeng, Z.P. Jin, Thermodynamic assessment of the Fe–Er system, Physica B: Condensed Matter 405, 3590-3593 (2010). doi:10.1016/j.physb.2010.05.046