Design of Eutectic High Entropy Alloys in Al-Co-Cr-Fe-Ni System

被引：17

作者：

Shafiei, Ali ^{[1
]}

机构：

[1] NRI, Met Grp, Tehran 14665517, Iran

来源：

METALS AND MATERIALS INTERNATIONAL | 2021年 / 27卷 / 01期

关键词：

High entropy alloys; High entropy eutectic alloys; Eutectic alloys; MECHANICAL-PROPERTIES; MICROSTRUCTURE; THERMODYNAMICS; SOLIDIFICATION; SUPERALLOYS; EVOLUTION; DUCTILITY; STRENGTH; STRATEGY; PATH;

D O I：

10.1007/s12540-020-00655-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, a simple approach is proposed for predicting the compositions of eutectic high entropy alloys (EHEAs) in Al-Co-Cr-Fe-Ni system. It is proposed that eutectic lines exist between certain eutectic alloys in this system and, as a result, new eutectic or near-eutectic compositions can be obtained by mixing the alloys which are located on the same eutectic line. The approach is applied for a series of experimentally verified eutectic alloys and new eutectic or near-eutectic alloys are designed for Al-Co-Cr-Fe-Ni system. Furthermore, by investigating the compositions of verified eutectic alloys in Al-Co-Cr-Fe-Ni system, compositional maps are proposed which show the relations between the concentrations of constituent elements in eutectic alloys. The compositional maps suggest that EHEAs are derived from binary and ternary eutectic alloys. Moreover, the proposed diagrams can be considered as convenient methods for evaluating the composition of EHEAs in Al-Co-Cr-Fe-Ni system. Graphic

引用

页码：127 / 138

页数：12

共 55 条

[1]

[Anonymous], JMATPRO JAV BAS MAT

[2]

Baker H., 1992, ASM HDB ALLOY PHASE

[3] Eutectic/eutectoid multi-principle component alloys: A review [J].