Thermodynamic evaluation of the phase stability in mechanically alloyed AlCuxNiCoTi high-entropy alloys
Source abstract
Abstract
This study investigates the phase stability of AlCu x NiCoTi high-entropy alloys with varying amounts of copper. The regular solution and Kohler’s models are used to thermodynamically evaluate the alloys and determine a symmetrical enthalpy across their compositions. The study calculates the Gibbs energy of mixing for a quinary alloy system using the extended Miedema theory and considering the change in enthalpy of mixing of the solid-solution and amorphous phases of 10 binary alloys. By comparing the experimental and predicted results, this study suggests that thermodynamic properties can help predict stable phases in multicomponent alloys comprising equiatomic and near-equiatomic elements. Furthermore, the structural instability of the solid-solution state resulting from differences in valence electron concentrations of the constituent elements in binary mixtures is discussed, highlighting the influence of alloying elements on the phase stability of multicomponent alloys.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High Entropy Alloys Studies · High-Temperature Coating Behaviors · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Recent progress in high-entropy alloys10.3166/acsm.31.633-648 ↗
2. Phase-tunable equiatomic and non-equiatomic Ti-Zr-Nb-Ta high-entropy alloys with ultrahigh strength for metallic biomaterials10.1016/j.jmst.2021.12.014 ↗
3. A powder-metallurgy-based fabrication route towards achieving high tensile strength with ultra-high ductility in high-entropy alloy10.1016/j.scriptamat.2020.08.038 ↗
4. Remarkably high fracture toughness of HfNbTaTiZr refractory high-entropy alloy10.1016/j.jmst.2022.01.017 ↗
5. Effect of carbon content on microstructure, hardness and wear resistance of CoCrFeMnNiCx high-entropy alloys10.1016/j.jallcom.2020.156533 ↗
6. On the enhanced wear resistance of CoCrFeMnNi high entropy alloy at intermediate temperature10.1016/j.scriptamat.2020.05.053 ↗
7. Recent advances on environmental corrosion behavior and mechanism of high-entropy alloys10.1016/j.jmst.2020.11.044 ↗
8. Phase selection rules for cast high entropy alloys: and overview10.1179/1743284715Y.0000000018 ↗
9. First-principles prediction of incipient order in arbitrary high-entropy alloys: exemplified in Ti0. 25CrFeNiAlx10.1016/j.actamat.2020.02.063 ↗
10. CALPHAD-aided design for superior thermal stability and mechanical behavior in a TiZrHfNb refractory high-entropy alloy10.1016/j.actamat.2023.118728 ↗
11. Phase prediction in high entropy alloys by various machine learning modules using thermodynamic and configurational parameters10.1007/s12540-022-01220-w ↗
12. On the theory of super-lattice structures in alloys10.1524/zkri.1935.91.1.23 ↗
13. Solid‐solution phase formation rules for multicomponent alloys10.1002/adem.200700240 ↗
14. Phase stability in high entropy alloys: Formation of solid-solution phase or amorphous phase10.1016/S1002-0071(12)60080-X ↗
15. High-throughput exploration of the WMoVTaNbAl refractory multi-principal-element alloys under multiple-property constraints10.1016/j.actamat.2023.118784 ↗
16. Mechanical properties and microstructural evolution of FeNiCrCoCux high-entropy alloys: a molecular dynamics simulation10.1016/j.ssc.2022.115011 ↗
17. Short-range ordering heredity in eutectic high entropy alloys: a new model based on pseudo-ternary eutectics10.1016/j.actamat.2022.118512 ↗
18. Predicting single-phase solid solutions in as-sputtered high entropy alloys: high-throughput screening with machine-learning model10.1016/j.jmst.2022.07.059 ↗
19. Theories for predicting simple solid solution high-entropy alloys: classification, accuracy, and important factors impacting accuracy10.1016/j.scriptamat.2020.06.064 ↗
20. Phase formation in magnetron sputtered CrMnFeCoNi high entropy alloy
21. Synthesis of FeCrCoNiCu high entropy alloy through mechanical alloying and spark plasma sintering processes10.1016/j.matchemphys.2022.126433 ↗
22. Mechanically alloyed high entropy alloys: existing challenges and opportunities10.1016/j.jmrt.2022.01.141 ↗
23. Powder metallurgical processing of equiatomic AlCoCrFeNi high entropy alloy: microstructure and mechanical properties10.1016/j.msea.2016.09.062 ↗
24. Microstructure and mechanical properties of mechanically-alloyed CoCrFeNi high-entropy alloys using low ball-to-powder ratio10.1016/j.jallcom.2022.168196 ↗
25. Novel materials synthesis by mechanical alloying/milling10.1179/imr.1998.43.3.101 ↗
26. De Boer · 1989
27. A thermodynamic model proposed for calculating the standard formation enthalpies of ternary alloy systems10.1016/j.scriptamat.2007.01.044 ↗
28. Fabrication of a novel magnetic high entropy alloy with desirable mechanical properties by mechanical alloying and spark plasma sintering10.1016/j.jmapro.2022.10.048 ↗
29. Segregation in regular ternary solutions, Part Ⅰ
30. Estimation of the thermodynamic data for a ternary system from the corresponding binary systems10.1007/BF00899814 ↗
31. The estimation of free energy of mixing of certain ternary liquid metal alloys
32. Predicting ternary activities using binary data
33. Empirical methods of predicting and representing thermodynamic properties of ternary solution phases10.1016/0364-5916(80)90016-4 ↗
34. Design of Fe36.29Cr28.9Ni26. 15Cu4. 17Ti1. 67V2. 48C0. 46 HEA using a new criterion based on VEC: microstructural study and multiscale mechanical response
35. Prediction of high-entropy stabilized solid-solution in multi-component alloys10.1016/j.matchemphys.2011.11.021 ↗
36. Classification of bulk metallic glasses by atomic size difference, heat of mixing and period of constituent elements and its application to characterization of the main alloying element10.2320/matertrans.46.2817 ↗
37. Synthesis and thermodynamic analysis of nanostructured CuNiCoZnAl high entropy alloy produced by mechanical alloying10.1016/j.jallcom.2016.05.274 ↗
38. P.K. Ray, M. Akinc, M.J. Kramer, Proc. 22nd Annual Conf. on ‘Fossil energy materials’, Pittsburgh. USA (2008).
39. Thermodynamic analysis of (Ni, Fe)3Al formation by mechanical alloying10.1016/j.jct.2012.05.027 ↗
40. Challenges in design and development of high entropy alloys: a thermodynamic and kinetic perspective10.1016/j.scriptamat.2020.06.060 ↗