Experimental determination of (BCC + FCC) phase fields in the quaternary isotherm of Fe–Ni–Co–Cu at 950°C
Source abstract
Abstract
Quaternary isotherm of Fe–Ni–Co–Cu at 950 °C is determined by multiphase diffusion couple experiments, focused on establishing the (BCC + FCC) two-phase regions. The present findings, combined with our previous study, discover the presence of five separate two-phase fields in this isotherm namely (BCC + Cu-rich FCC), (BCC + Cu-lean FCC richer in Fe), (BCC + Cu-lean FCC richer in Co), (Cu-rich FCC + Fe-rich FCC), and (Cu-rich FCC + Co-rich FCC). This also indicates the existence of two three-phase fields. Based on diffusion couples exhibiting planar interfaces between BCC and FCC phases, three tie lines in (BCC + Cu-rich FCC) two-phase field were also determined. It is observed that Fe–Co–Cu ternary isotherm at 950 °C has a wider BCC region (up to 8 wt% Cu) than the commonly accepted phase diagram. A qualitative representation of the entire quaternary isotherm is proposed in the form of multiple iso-Ni concentration sections.Graphical Abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High Entropy Alloys Studies · Microstructure and Mechanical Properties of Steels · Metallic Glasses and Amorphous Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. T. Kraft, Y.A. Chang, Predicting microstructure and microsegregation in multicomponent alloys. Jom 49(12), 20 (1997)10.1007/s11837-997-0025-4 ↗
2. Y.A. Chang, S. Chen, F. Zhang, X. Yan, F. Xie, R. Schmid-Fetzer, W.A. Oates, Phase diagram calculation: past, present and future. Prog. Mater. Sci. 49(3–4), 313 (2004)10.1016/S0079-6425(03)00025-2 ↗
3. R. Schmid-Fetzer, Phase diagrams: the beginning of wisdom. J. Phase Equilibria Diffus. 35(6), 735 (2014)10.1007/s11669-014-0343-5 ↗
4. J.C. Viala, N. Peillon, F. Bosselet, J. Bouix, Phase equilibria at 1000 °C in the Al–C–S–Ti quaternary system: an experimental approach. Mater. Sci. Eng. A 229, 95 (1996)10.1016/S0921-5093(97)00002-6 ↗
5. L.L. Rokhlin, T.V. Dobatkina, N.R. Bochvar, E.V. Lysova, Investigation of phase equilibria in alloys of the Al–Zn–Mg–Cu–Zr-Sc system. J. Alloys Compd. 367(1–2), 10 (2004)10.1016/j.jallcom.2003.08.003 ↗
6. N.A. Belov, D.G. Eskin, N.N. Avxentieva, Constituent phase diagrams of the Al–Cu–Fe–Mg–Ni-Si system and their application to the analysis of aluminium piston alloys. Acta Mater. 53(17), 4709 (2005)10.1016/j.actamat.2005.07.003 ↗
7. S. Kobayashi, Y. Tsukamoto, T. Takasugi, Phase equilibria in the Co-rich Co-Al-W-Ti quaternary system. Intermetallics 19(12), 1908 (2011)10.1016/j.intermet.2011.08.004 ↗
8. M. Hoch, Calculation of ternary, quaternary, and higher-order phase diagrams from binary diagrams and binary thermodynamic data. J. Phase Equilibria. 14(6), 710 (1993)10.1007/BF02667883 ↗
9. L.C. Li, F. Gesmundo, F. Viani, The construction of isothermal quaternary phase diagrams of the Na–M–O–S type for hot corrosion applications. Oxid. Met. 40(5–6), 395 (1993)10.1007/BF00666383 ↗
10. E. Balitchev, T. Jantzen, I. Hurtado, D. Neuschütz, Thermodynamic assessment of the quaternary system Al–Fe–Mn–Si in the Al-rich corner. Calphad Comput. Coupling Phase Diagrams Thermochem. 27(3), 275 (2003)10.1016/j.calphad.2003.08.007 ↗
11. A. Kozlov, J. Gröbner, R. Schmid-Fetzer, Phase formation in Mg-Sn-Si and Mg–Sn–Si–Ca alloys. J. Alloys Compd. 509(7), 3326 (2011)10.1016/j.jallcom.2010.12.052 ↗
12. C. Zhang, F. Zhang, S. Chen, W. Cao, Computational thermodynamics aided high-entropy alloy design. Jom. 64(7), 839 (2012)10.1007/s11837-012-0365-6 ↗
13. Y.Q. Liu, W.T. Xu, D. Xie, Z.M. Li, Phase diagram calculations of Al-Cr-Nb-Ti quaternary system. Mater. Res. Innov. 18, S2573 (2014)10.1179/1432891714Z.000000000489 ↗
14. U.R. Kattner, C.E. Campbell, Modelling of thermodynamics and diffusion in multicomponent systems. Mater. Sci. Technol. 25(4), 443 (2009)10.1179/174328408X372001 ↗
15. A. Kroupa, Modelling of phase diagrams and thermodynamic properties using Calphad method—development of thermodynamic databases. Comput. Mater. Sci. 66, 3 (2013)10.1016/j.commatsci.2012.02.003 ↗
16. A.B. Krishna, K.N. Kulkarni, Experimental determination of quaternary isotherm of Fe-Ni-Co-Cu at 950 °C by diffusion couple technique. Materialia 4, 549 (2018)10.1016/j.mtla.2018.11.010 ↗
17. D.H. Xiao, P.F. Zhou, W.Q. Wu, H.Y. Diao, M.C. Gao, M. Song, P.K. Liaw, Microstructure, mechanical and corrosion behaviors of AlCoCuFeNi-(Cr, Ti) high entropy alloys. Mater. Des. 116, 438 (2017)10.1016/j.matdes.2016.12.036 ↗
18. M. Myslyvchenko, M.O. Krapivka, S. Tereshchenko, I. Filep, Influence of Chromium on the phase composition and specific features of hardening of the MnFeCoNiCu high-entropy alloy. Mater. Sci. 56(3), 375 (2020)10.1007/s11003-020-00440-y ↗
19. S. Das, S.K. Nishad, P.S. Robi, A New high-entropy alloy of Al–Fe–Co–Ni–Cu possessing single face-centered cubic crystal structure and excellent mechanical properties at room temperature. Phys. Status Solidi Appl. Mater. Sci. 218(8), 1 (2021)
20. Y. Lu, Y. Dong, S. Guo, L. Jiang, H. Kang, T. Wang, B. Wen, Z. Wang, J. Jie, Z. Cao, H. Ruan, T. Li, A promising new class of high-temperature alloys: eutectic high-entropy alloys. Sci. Rep. 4, 1 (2014)10.1038/srep06200 ↗
21. W. Fang, R. Chang, X. Zhang, P. Ji, X. Wang, B. Liu, J. Li, X. He, X. Qu, F. Yin, Effects of Cobalt on the structure and mechanical behavior of non-equal molar CoxFe50−xCr25Ni25 high entropy alloys. Mater. Sci. Eng. A 723, 221 (2018)10.1016/j.msea.2018.01.029 ↗
22. X. Sun, H. Zhu, J. Li, J. Huang, Z. Xie, High entropy alloy FeCoNiCu matrix composites reinforced with in-situ TiC particles and graphite whiskers. Mater. Chem. Phys. 220, 449 (2018)10.1016/j.matchemphys.2018.09.022 ↗
23. H. Qiu, H. Zhu, J. Zhang, Z. Xie, Effect of Fe content upon the microstructures and mechanical properties of FexCoNiCu high entropy alloys. Mater. Sci. Eng. A 769, 138514 (2020)10.1016/j.msea.2019.138514 ↗
24. J.S. Kirkaldy, Diffusion in Multicomponent metallic systems: III. the motion of planar phase interfaces. Can. J. Phys. 36(7), 917 (1958)10.1139/p58-098 ↗
25. Alloy Phase Diagrams in ASM Handbook Volume 3, ASM International, Metals Park, OH, USA, (1992).
26. J.E. Morral, Diffusion path theorems for ternary diffusion couples. Metall. Mater. Trans. A Phys. Metall. Mater. Sci 43(10), 3462 (2012)10.1007/s11661-011-1026-z ↗
27. K.C. Hari Kumar, V. Raghavan, BCC-FCC equilibrium in ternary iron alloys—III. J. Alloy Phase Diagrams 5(3), 201–20 (1989)
28. S. Bein, C. Colinet, M. Durand-Charre, CVM calculation of the ternary system Co-Cu-Fe. J. Alloys Compd. 313(1–2), 133 (2000)10.1016/S0925-8388(00)01198-1 ↗
29. C.J. Tong, Y.L. Chen, S.K. Chen, J.W. Yeh, T.T. Shun, C.H. Tsau, S.J. Lin, S.Y. Chang, Microstructure characterization of AlxCoCrCuFeNi high-entropy alloy system with multiprincipal elements. Metall. Mater. Trans. A Phys. Metall. Mater. Sci. 36(4), 881 (2005)10.1007/s11661-005-0283-0 ↗
30. L.J. Santodonato, Y. Zhang, M. Feygenson, C.M. Parish, M.C. Gao, R.J.K. Weber, J.C. Neuefeind, Z. Tang, P.K. Liaw, Deviation from high-entropy configurations in the atomic distributions of a multi-principal-element alloy. Nat. Commun. (2015). https://doi.org/10.1038/ncomms696410.1038/ncomms6964 ↗
31. X. Xian, L. Lin, Z. Zhong, C. Zhang, C. Chen, K. Song, J. Cheng, Y. Wu, Precipitation and its strengthening of Cu-rich phase in CrMnFeCoNiCux high-entropy alloys. Mater. Sci. Eng. A 713, 134 (2018)10.1016/j.msea.2017.12.060 ↗
32. Z. Li, C.C. Tasan, K.G. Pradeep, D. Raabe, A TRIP-assisted dual-phase high-entropy alloy: Grain size and phase fraction effects on deformation behavior. Acta Mater. 131, 323 (2017)10.1016/j.actamat.2017.03.069 ↗