Phase composition prediction of Al-Co-Cr-Fe-Ni high entropy alloy system based on thermodynamic and electronic properties calculations

被引：13
作者：
Osintsev, Kirill [1 ,2 ]
Konovalov, Sergey [1 ,2 ]
Gromov, Victor [1 ]
Panchenko, Irina [1 ]
Chen, Xizhang [1 ,2 ]
机构：
[1] Siberian State Ind Univ, 42 Kirova St, Novokuznetsk 654007, Russia
[2] Samara Natl Res Univ, 34 Moskovskoe Shosse, Samara 443086, Russia
来源：
MATERIALS TODAY-PROCEEDINGS | 2021年 / 46卷
基金：
俄罗斯科学基金会;
关键词：
High-entropy alloy; Phase composition; Physicochemical properties; Thermodynamic criteria; SOLID-SOLUTION PHASE; CONFIGURATION ENERGIES; MECHANICAL-PROPERTIES; MICROSTRUCTURE; STABILITY; CRITERION;
D O I：
10.1016/j.matpr.2021.01.079
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present study, the phase composition of Al-Co-Cr-Fe-Ni high-entropy alloy with each element's different molar ratio was investigated. This research aimed to predict the phase formation of Al-Co-Cr-Fe-Ni high-entropy alloy systems with each element's different content (0 <= x <= 5). According to the purpose, thermodynamic properties as the mixing enthalpy and the mixing entropy and electronic properties as valence electron concentration, Allen and Pauling electronegativity have been calculated. The results have been compared with the boundary limits of the formation of solid solution, face-centered cubic, body-centered cubic, and topologically close-packed crystal structure, as well as sigma and Lavesphases. It was shown that using physicochemical properties, it is possible to predict the formation of the phase composition of the high-entropy alloy. (C) 2021 Elsevier Ltd. All rights reserved.
引用
收藏
页码：961 / 965
页数：5
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