Microstructure Selection in Ton Class Ingot of Al₁₇Cr₁₀Fe₃₃Ni₃₆Mo₂Ti₂ Eutectic High Entropy Alloy

作     者：Shi, Xinbo Qiu, Yunji Bai, Xiaoyu Chen, Yiming Wang, Yongqiang Xu, Tao Wang, Jincheng Li, Junjie Wang, Zhijun 

作者机构：Northwestern Polytech Univ State Key Lab Solidificat Proc Xian 710072 Peoples R China Xian Superalloy Technol Co Ltd Xian 710299 Peoples R China Anhui Fukai Special Mat Co Ltd Xuancheng 245300 Peoples R China 

出 版 物：《ACTA METALLURGICA SINICA-ENGLISH LETTERS》 (Acta Metal. Sin.)

年 卷 期：2024年第37卷第12期

页      面：2008-2018页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 0703[理学-化学] 0811[工学-控制科学与工程] 

基　　金：Natural Science Basic Research of Shaanxi [2022JC-28] 

主　　题：Eutectic high entropy alloy Ton class ingot Segregation Microstructure Mechanical properties 

摘      要：The eutectic high entropy alloys have attracted extensive attention and are considered one of the most promising new metal materials. The microstructures of large eutectic high entropy alloy ingot with excellent casting performance have been rarely reported. In this study, we have prepared a ton class eutectic high entropy alloy ingot via vacuum induction melting for the first time. The evolution of microstructure and macro-segregation from the edge region to the core of the ingot were also revealed. It was found that there was no significant macro-segregation in ton class eutectic high entropy alloy ingot, and chemical elements were distributed uniformly. The coupled growth of the primary phases and eutectic colonies were homogeneously distributed in the ingot, and there is no traditional columnar grain region from the edge region of the ingot to the core. The tensile strength of the sample in the R/2 region of the ton class ingot with elongation greater than 10% is 892.3 MPa, showing an excellent comprehensive mechanical property. This study exhibits an important guidance for the industrial application of large eutectic high entropy alloy casting ingot.