The similarity of elements in multi-principle element alloys based on a new criterion for phase constitution

• DOI: 10.1016/j.matdes.2021.109849
• Publication Date: 2021-05-24T11:26:49Z
• Authors: Jili Ding; Hongjie Xu; Xuan Li; Man Liu; Tao Zhang
• Keywords: Valence electron

Prediction of the phase constitution multi-principle elements alloys (MPEAs) with various element numbers is important for alloy design and performance optimization. Herein, valence electron density parameter, α, proposed as an improvement concentration by including impact atom volumes. The numerous MPEAs well predicted priori α-ΔHmix(enthalpy mixing) criterion, evidenced distinguishing FCC single phase, BCC dual-phase phase. similarity in evaluated derivative α ΔHmixwith respect to atomic percentage, which successfully predicts CrFeNi addition Ti, Zr, Al, Cr, Fe, Ni, Co Cu. This work provides valuable insights into judgement view relationship between elements.