Fe–Tb system
45 accepted literature values from 1 paper(s) (experimental 15, model 30); 3 calculated phase diagram(s). 1 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 | 15 |
| model | 30 |
| Property group | Values |
|---|---|
| invariant reaction | 38 |
| phase transition | 7 |
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 |
|---|---|---|---|
| FeTb-17Ron.tdb | M.H. Rong, X.L. Chen, J. Wang, G.H. Rao, H.Y. Zhou, Calphad, 59, 154-63(2017). doi:10.1016/j.calphad.2017.10.003 | 46346f5bff319295d6485f426e1c534c7b986239e67fd24c2aa0128025114e9f | viewer · TDB · JSON |
| FeTb-23Ye.tdb | H. Ye, M. Rong, Q. Chen, Q. Yao, J. Wang, G. Rao, H. Zhou, J. Mater. Inf., 3, 15(2023). | 0eb2e62ea5c9bc113ee57ca55d8fd8a9acb4dcae874a32118b4648934f51e744 | viewer · TDB · JSON |
| FeTb-94Lan.tdb | S. Landin, J. Agren, J. Alloys Compd., 207-208, 449-53(1994). doi:10.1016/0925-8388(94)90261-5 | 4276274a275273a7487c0c4d613e47325771b9d1438c927c46120eebc7c69db3 | viewer · TDB · JSON |
| TDB file | T (K) | Phases at the invariant |
|---|---|---|
| FeTb-17Ron.tdb | 1653.64 | FCC_A1 (x(Tb) 1.300e-4) + BCC_A2 (x(Tb) 6.200e-4) + LIQUID (x(Tb) 0.07765) |
| FeTb-17Ron.tdb | 1653.64 | FCC_A1 (x(Tb) 1.300e-4) + BCC_A2 (x(Tb) 6.200e-4) + LIQUID (x(Tb) 0.07765) |
| FeTb-17Ron.tdb | 1584.44 | FCC_A1 (x(Tb) 1.500e-4) + FE17TB2 (x(Tb) 0.10526) + LIQUID (x(Tb) 0.11199) |
| FeTb-17Ron.tdb | 1584.44 | FCC_A1 (x(Tb) 1.500e-4) + FE17TB2 (x(Tb) 0.10526) + LIQUID (x(Tb) 0.1119) |
| FeTb-17Ron.tdb | 1560.88 | LIQUID (x(Tb) 0.96664) + BCC_A2 (x(Tb) 0.99976) + HCP_A3 (x(Tb) 1) |
| FeTb-17Ron.tdb | 1560.88 | LIQUID (x(Tb) 0.9667) + BCC_A2 (x(Tb) 0.99976) + HCP_A3 (x(Tb) 1) |
| FeTb-17Ron.tdb | 1546.16 | FE17TB2 (x(Tb) 0.10526) + LIQUID (x(Tb) 0.1989) + FE23TB6_D8A (x(Tb) 0.2069) |
| FeTb-17Ron.tdb | 1546.15 | FE17TB2 (x(Tb) 0.10526) + LIQUID (x(Tb) 0.19957) + FE23TB6_D8A (x(Tb) 0.2069) |
| FeTb-17Ron.tdb | 1546.15 | FE17TB2 (x(Tb) 0.10526) + LIQUID (x(Tb) 0.19992) + FE23TB6_D8A (x(Tb) 0.2069) |
| FeTb-17Ron.tdb | 1484.17 | FE23TB6_D8A (x(Tb) 0.2069) + FE3TB (x(Tb) 0.25) + LIQUID (x(Tb) 0.3524) |
| FeTb-17Ron.tdb | 1484.17 | FE23TB6_D8A (x(Tb) 0.2069) + FE3TB (x(Tb) 0.25) + LIQUID (x(Tb) 0.3518) |
| FeTb-17Ron.tdb | 1458.67 | FE3TB (x(Tb) 0.25) + FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.39087) |
| FeTb-17Ron.tdb | 1458.67 | FE3TB (x(Tb) 0.25) + FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.39157) |
| FeTb-17Ron.tdb | 1458.66 | FE3TB (x(Tb) 0.25) + FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.39118) |
| FeTb-17Ron.tdb | 1184.93 | FCC_A1 (x(Tb) 0) + BCC_A2 (x(Tb) 1.000e-5) + FE17TB2 (x(Tb) 0.10526) |
| FeTb-17Ron.tdb | 1184.93 | FCC_A1 (x(Tb) 0) + BCC_A2 (x(Tb) 1.000e-5) + FE17TB2 (x(Tb) 0.10526) |
| FeTb-17Ron.tdb | 1119.25 | FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.69342) + HCP_A3 (x(Tb) 1) |
| FeTb-17Ron.tdb | 1119.25 | FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.69336) + HCP_A3 (x(Tb) 1) |
| FeTb-17Ron.tdb | 1119.25 | FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.6935) + HCP_A3 (x(Tb) 1) |
| FeTb-17Ron.tdb | 1119.25 | FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.6935) + HCP_A3 (x(Tb) 1) |
| FeTb-23Ye.tdb | 1666.88 | FCC_A1 (x(Tb) 1.000e-5) + BCC_A2 (x(Tb) 3.000e-5) + LIQUID (x(Tb) 0.05049) |
| FeTb-23Ye.tdb | 1666.88 | FCC_A1 (x(Tb) 1.000e-5) + BCC_A2 (x(Tb) 3.000e-5) + LIQUID (x(Tb) 0.0505) |
| FeTb-23Ye.tdb | 1666.88 | FCC_A1 (x(Tb) 1.000e-5) + BCC_A2 (x(Tb) 3.000e-5) + LIQUID (x(Tb) 0.05049) |
| FeTb-23Ye.tdb | 1575.15 | FCC_A1 (x(Tb) 1.000e-5) + LIQUID (x(Tb) 0.07639) + FE17TB2 (x(Tb) 0.10526) |
| FeTb-23Ye.tdb | 1575.15 | FCC_A1 (x(Tb) 1.000e-5) + LIQUID (x(Tb) 0.07641) + FE17TB2 (x(Tb) 0.10526) |
| FeTb-23Ye.tdb | 1575.15 | FCC_A1 (x(Tb) 1.000e-5) + LIQUID (x(Tb) 0.07638) + FE17TB2 (x(Tb) 0.10526) |
| FeTb-23Ye.tdb | 1561.4 | LIQUID (x(Tb) 0.96804) + BCC_A2 (x(Tb) 0.99987) + HCP_A3 (x(Tb) 1) |
| FeTb-23Ye.tdb | 1561.4 | LIQUID (x(Tb) 0.96811) + BCC_A2 (x(Tb) 0.99987) + HCP_A3 (x(Tb) 1) |
| FeTb-23Ye.tdb | 1546.59 | FE17TB2 (x(Tb) 0.10526) + LIQUID (x(Tb) 0.16657) + FE23TB6_D8A (x(Tb) 0.2069) |
| FeTb-23Ye.tdb | 1546.59 | FE17TB2 (x(Tb) 0.10526) + LIQUID (x(Tb) 0.16624) + FE23TB6_D8A (x(Tb) 0.2069) |
| FeTb-23Ye.tdb | 1485.39 | FE23TB6_D8A (x(Tb) 0.2069) + FE3TB (x(Tb) 0.25) + LIQUID (x(Tb) 0.31961) |
| FeTb-23Ye.tdb | 1485.39 | FE23TB6_D8A (x(Tb) 0.2069) + FE3TB (x(Tb) 0.25) + LIQUID (x(Tb) 0.31956) |
| FeTb-23Ye.tdb | 1461.48 | FE3TB (x(Tb) 0.25) + FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.34893) |
| FeTb-23Ye.tdb | 1461.48 | FE3TB (x(Tb) 0.25) + FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.34863) |
| FeTb-23Ye.tdb | 1461.48 | FE3TB (x(Tb) 0.25) + FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.34897) |
| FeTb-23Ye.tdb | 1184.82 | BCC_A2 (x(Tb) 0) + FCC_A1 (x(Tb) 0) + FE17TB2 (x(Tb) 0.10526) |
| FeTb-23Ye.tdb | 1116.04 | FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.67484) + HCP_A3 (x(Tb) 1) |
| FeTb-23Ye.tdb | 1116.04 | FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.67465) + HCP_A3 (x(Tb) 1) |
| FeTb-23Ye.tdb | 1116.04 | FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.67502) + HCP_A3 (x(Tb) 1) |
| FeTb-94Lan.tdb | 1637.02 | FCC_A1 (x(Tb) 0.00254) + BCC_A2 (x(Tb) 0.00363) + LIQUID (x(Tb) 0.09819) |
| FeTb-94Lan.tdb | 1578.32 | FCC_A1 (x(Tb) 0.0028) + FE17TB2 (x(Tb) 0.10526) + LIQUID (x(Tb) 0.13399) |
| FeTb-94Lan.tdb | 1578.32 | FCC_A1 (x(Tb) 0.0028) + FE17TB2 (x(Tb) 0.10526) + LIQUID (x(Tb) 0.13387) |
| FeTb-94Lan.tdb | 1560.46 | LIQUID (x(Tb) 0.96474) + BCC_A2 (x(Tb) 0.99882) + HCP_A3 (x(Tb) 0.99915) |
| FeTb-94Lan.tdb | 1542.75 | FE17TB2 (x(Tb) 0.10526) + FE23TB6_D8A (x(Tb) 0.2069) + LIQUID (x(Tb) 0.21167) |
| FeTb-94Lan.tdb | 1542.75 | FE17TB2 (x(Tb) 0.10526) + FE23TB6_D8A (x(Tb) 0.2069) + LIQUID (x(Tb) 0.21131) |
| FeTb-94Lan.tdb | 1542.75 | FE17TB2 (x(Tb) 0.10526) + FE23TB6_D8A (x(Tb) 0.2069) + LIQUID (x(Tb) 0.21193) |
| FeTb-94Lan.tdb | 1482.35 | FE23TB6_D8A (x(Tb) 0.2069) + FE3TB (x(Tb) 0.25) + LIQUID (x(Tb) 0.36103) |
| FeTb-94Lan.tdb | 1482.34 | FE23TB6_D8A (x(Tb) 0.2069) + FE3TB (x(Tb) 0.25) + LIQUID (x(Tb) 0.3616) |
| FeTb-94Lan.tdb | 1482.34 | FE23TB6_D8A (x(Tb) 0.2069) + FE3TB (x(Tb) 0.25) + LIQUID (x(Tb) 0.36179) |
| FeTb-94Lan.tdb | 1482.34 | FE23TB6_D8A (x(Tb) 0.2069) + FE3TB (x(Tb) 0.25) + LIQUID (x(Tb) 0.3618) |
| FeTb-94Lan.tdb | 1455.8 | FE3TB (x(Tb) 0.25) + FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.4043) |
| FeTb-94Lan.tdb | 1455.8 | FE3TB (x(Tb) 0.25) + FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.40366) |
| FeTb-94Lan.tdb | 1455.8 | FE3TB (x(Tb) 0.25) + FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.40467) |
| FeTb-94Lan.tdb | 1185.05 | FCC_A1 (x(Tb) 9.000e-5) + BCC_A2 (x(Tb) 1.100e-4) + FE17TB2 (x(Tb) 0.10526) |
| FeTb-94Lan.tdb | 1122.85 | FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.68684) + HCP_A3 (x(Tb) 0.99865) |
| FeTb-94Lan.tdb | 1122.85 | FE2TB_C15 (x(Tb) 0.33333) + LIQUID (x(Tb) 0.68674) + HCP_A3 (x(Tb) 0.99865) |
Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull FeTb-17Ron · CALPHAD hull FeTb-94Lan
Invariant reactions (literature)
| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|
| 1667 | metatectic/catatectic: bcc(δ-Fe) ↔ fcc(γ-Fe) + L | L: Tb 0.12 | experimental | [1] Ye 2023 cites ref. 94 | Table 6, p. 12, row 1 report | |
| 1666.9 | metatectic/catatectic: bcc(δ-Fe) ↔ fcc(γ-Fe) + L | L: Tb 0.05 | model | [1] Ye 2023 | Table 6, p. 12, row 4 report | |
| 1665.1 | metatectic/catatectic: bcc(δ-Fe) ↔ fcc(γ-Fe) + L | L: Tb 0.08 | model | [1] Ye 2023 cites ref. 104 | Table 6, p. 12, row 2 report | |
| 1664 | metatectic/catatectic: bcc(δ-Fe) ↔ fcc(γ-Fe) + L | L: Tb 0.1 | model | [1] Ye 2023 cites ref. 27 | Table 6, p. 12, row 3 report | |
| 1585 | peritectic | experimental | [1] Ye 2023 cites ref. 92 | p. 4 report | Four Fe17Tb2, Fe23Tb6, Fe3Tb, and Fe2Tb intermetallic compounds are produced via the peritectic transformation at 1,585 K, 1,549 K, 1,485 K, and 1,460 K, respectively, and Fe17Tb2 is produced at 1,589 K by the congruent melting. | |
| 1579 | eutectic: L ↔ Fe17Tb2 + fcc(γ-Fe) | L: Tb 0.082 | model | [1] Ye 2023 cites (cal | Table 6, p. 12, row 10 report | |
| 1576 | eutectic: L ↔ Fe17Tb2 + fcc(γ-Fe) | L: Tb 0.075 | model | [1] Ye 2023 cites ref. 27 | Table 6, p. 12, row 11 report | |
| 1575 | eutectic: L ↔ Fe17Tb2 + fcc(γ-Fe) | L: Tb 0.076 | model | [1] Ye 2023 | Table 6, p. 12, row 12 report | |
| 1574 | eutectic: L ↔ Fe17Tb2+bcc-Fe | experimental | [1] Ye 2023 cites ref. 95 | p. 4 report | A eutectic reaction (L ↔ Fe17Tb2+bcc-Fe) takes place according to the DTA results[95] at 1,574 K. | |
| 1574 | eutectic: L ↔ Fe17Tb2 + fcc(γ-Fe) | L: Tb 0.075 | experimental | [1] Ye 2023 cites ref. 95 | Table 6, p. 12, row 9 report | |
| 1549 | eutectic: L ↔ Fe17Tb2 + Fe23Tb6 | L: Tb 0.216 | experimental | [1] Ye 2023 cites ref. 92 | Table 6, p. 12, row 17 report | |
| 1549 | peritectic | experimental | [1] Ye 2023 cites ref. 92 | p. 4 report | Four Fe17Tb2, Fe23Tb6, Fe3Tb, and Fe2Tb intermetallic compounds are produced via the peritectic transformation at 1,585 K, 1,549 K, 1,485 K, and 1,460 K, respectively, and Fe17Tb2 is produced at 1,589 K by the congruent melting. | |
| 1547 | eutectic: L ↔ Fe17Tb2 + Fe23Tb6 | experimental | [1] Ye 2023 cites ref. 95 | Table 6, p. 12, row 18 report | ||
| 1546.5 | eutectic: L ↔ Fe17Tb2 + Fe23Tb6 | L: Tb 0.167 | model | [1] Ye 2023 | Table 6, p. 12, row 22 report | |
| 1546 | eutectic: L ↔ Fe17Tb2 + Fe23Tb6 | L: Tb 0.208 | model | [1] Ye 2023 cites ref. 27 | Table 6, p. 12, row 21 report | |
| 1546 | eutectic: L ↔ Fe17Tb2 + Fe23Tb6 | L: Tb 0.19 | model | [1] Ye 2023 cites (cal | Table 6, p. 12, row 20 report | |
| 1542.7 | eutectic: L ↔ Fe17Tb2 + Fe23Tb6 | L: Tb 0.212 | model | [1] Ye 2023 cites ref. 104 | Table 6, p. 12, row 19 report | |
| 1486 | peritectic: L+ Fe23Tb6 ↔ Fe3Tb | L: Tb 0.319 | model | [1] Ye 2023 | Table 6, p. 12, row 29 report | |
| 1485 | peritectic: L+ Fe23Tb6 ↔ Fe3Tb | L: Tb 0.34 | model | [1] Ye 2023 cites ref. 27 | Table 6, p. 12, row 28 report | |
| 1485 | peritectic: L+ Fe23Tb6 ↔ Fe3Tb | L: Tb 0.349 | experimental | [1] Ye 2023 cites ref. 92 | Table 6, p. 12, row 25 report | |
| 1485 | peritectic | experimental | [1] Ye 2023 cites ref. 92 | p. 4 report | Four Fe17Tb2, Fe23Tb6, Fe3Tb, and Fe2Tb intermetallic compounds are produced via the peritectic transformation at 1,585 K, 1,549 K, 1,485 K, and 1,460 K, respectively, and Fe17Tb2 is produced at 1,589 K by the congruent melting. | |
| 1481 | peritectic: L+ Fe23Tb6 ↔ Fe3Tb | L: Tb 0.388 | model | [1] Ye 2023 cites (cal | Table 6, p. 12, row 27 report | |
| 1473.1 | peritectic: L+ Fe23Tb6 ↔ Fe3Tb | L: Tb 0.361 | model | [1] Ye 2023 cites ref. 104 | Table 6, p. 12, row 26 report | |
| 1462.7 | peritectic: L + Fe3Tb ↔ Fe2Tb | L: Tb 0.348 | model | [1] Ye 2023 | Table 6, p. 12, row 34 report | |
| 1460 | peritectic: L + Fe3Tb ↔ Fe2Tb | L: Tb 0.405 | model | [1] Ye 2023 cites ref. 27 | Table 6, p. 12, row 33 report | |
| 1460 | peritectic: L + Fe3Tb ↔ Fe2Tb | L: Tb 0.412 | experimental | [1] Ye 2023 cites ref. 92 | Table 6, p. 12, row 30 report | |
| 1460 | peritectic | experimental | [1] Ye 2023 cites ref. 92 | p. 4 report | Four Fe17Tb2, Fe23Tb6, Fe3Tb, and Fe2Tb intermetallic compounds are produced via the peritectic transformation at 1,585 K, 1,549 K, 1,485 K, and 1,460 K, respectively, and Fe17Tb2 is produced at 1,589 K by the congruent melting. | |
| 1459 | peritectic: L + Fe3Tb ↔ Fe2Tb | L: Tb 0.424 | model | [1] Ye 2023 cites (cal | Table 6, p. 12, row 32 report | |
| 1456.6 | peritectic: L + Fe3Tb ↔ Fe2Tb | L: Tb 0.403 | model | [1] Ye 2023 cites ref. 104 | Table 6, p. 12, row 31 report | |
| 1185 | peritectoid: Fe17Tb2 + fcc(γ-Fe) ↔ bcc(α-Fe) | model | [1] Ye 2023 cites ref. 27 | Table 6, p. 12, row 7 report | ||
| 1185 | peritectoid: Fe17Tb2 + fcc(γ-Fe) ↔ bcc(α-Fe) | experimental | [1] Ye 2023 cites ref. 94 | Table 6, p. 12, row 5 report | ||
| 1184.8 | peritectoid: Fe17Tb2 + fcc(γ-Fe) ↔ bcc(α-Fe) | model | [1] Ye 2023 cites ref. 104 | Table 6, p. 12, row 6 report | ||
| 1184.8 | peritectoid: Fe17Tb2 + fcc(γ-Fe) ↔ bcc(α-Fe) | model | [1] Ye 2023 | Table 6, p. 12, row 8 report | ||
| 1123 | eutectic: L ↔ Fe2Tb + hcp-Tb | L: Tb 0.687 | model | [1] Ye 2023 cites ref. 104 | Table 6, p. 12, row 36 report | |
| 1122 | eutectic: L ↔ Fe2Tb + hcp-Tb | L: Tb 0.7 | model | [1] Ye 2023 cites (cal | Table 6, p. 12, row 37 report | |
| 1120 | eutectic: L ↔ Fe2Tb + hcp-Tb | L: Tb 0.69 | model | [1] Ye 2023 cites ref. 27 | Table 6, p. 12, row 38 report | |
| 1120 | eutectic: L ↔ Fe2Tb + hcp-Tb | L: Tb 0.72 | experimental | [1] Ye 2023 cites ref. 92 | Table 6, p. 12, row 35 report | |
| 1117.1 | eutectic: L ↔ Fe2Tb + hcp-Tb | L: Tb 0.675 | model | [1] Ye 2023 | Table 6, p. 12, row 39 report |
Other properties
Phase transition (7)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Phase transition | 1547 K | 1547 | congruent melting: L ↔ Fe23Tb6 L: Tb 0.207 | model | [1] Ye 2023 cites (cal | Table 6, p. 12, row 23 report | |
| Phase transition | 1561.1 K | 1561.1 | congruent melting: L ↔ Fe23Tb6 L: Tb 0.207 | model | [1] Ye 2023 | Table 6, p. 12, row 24 report | |
| Phase transition | 1585 K | 1585 | congruent melting: L ↔ Fe17Tb2 L: Tb 0.105 | model | [1] Ye 2023 cites (cal | Table 6, p. 12, row 14 report | |
| Phase transition | 1586 K | 1586 | congruent melting: L ↔ Fe17Tb2 L: Tb 0.105 | model | [1] Ye 2023 cites ref. 27 | Table 6, p. 12, row 15 report | |
| Phase transition | 1587.5 K | 1587.5 | congruent melting: L ↔ Fe17Tb2 L: Tb 0.105 | model | [1] Ye 2023 | Table 6, p. 12, row 16 report | |
| Phase transition | 1589 K | 1589 | congruent melting: L ↔ Fe17Tb2 L: Tb 0.105 | experimental | [1] Ye 2023 cites ref. 95 | Table 6, p. 12, row 13 report | |
| Phase transition | 1589 K | 1589 | congruent transformation | experimental | [1] Ye 2023 cites ref. 92 | p. 4 report | Four Fe17Tb2, Fe23Tb6, Fe3Tb, and Fe2Tb intermetallic compounds are produced via the peritectic transformation at 1,585 K, 1,549 K, 1,485 K, and 1,460 K, respectively, and Fe17Tb2 is produced at 1,589 K by the congruent melting. |
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