铸造2024，Vol.73Issue(8)：1059-1064,6.
(Ti1/4Zr1/4V1/4Nb1/4)Alx高熵金属间化合物合金的组织结构研究
Study on Microstructure and Crystal Structure of(Ti1/4Zr1/4V1/4Nb1/4)Alx High Entropy Intermetallic Compounds
覃业恒 1张越 1张骁 1杨程 1陈迅 1王乔 1赵鹏程 1刘亮1
作者信息
- 1. 辽宁工业大学材料科学与工程学院,辽宁锦州 121001
- 折叠
摘要
Abstract
Five principal-element(Ti1/4Zr1/4V1/4Nb1/4)Alx high-entropy intermetallic compounds were designed and prepared by vacuum arc melting method.The changes in crystal structures,microstructures and hardnesses of as-cast and high-temperature annealed alloys were investigated in detail.The results indicated that the(Ti1/4Zr1/4V1/4Nb1/4)Alx high entropy intermetallic compounds were based on ordered D022 structure with a small amount of L10 precipitates.The alloys'microstructure was a dendritic structure.Because of the different distribution of elements in dendritic and interdendritic regions,phase separation phenomenon occurs in the alloys.The(Ti1/4Zr1/4V1/4Nb1/4)Al3.5 alloy had the least content of L10 phase,which basically disappeared after heat treatment at 1 300 ℃.This alloy could still maintain its as-cast matrix structure at a high temperature up to 1 400 ℃ without precipitation of other phases,indicating that it had excellent high-temperature thermal stability.关键词
高熵合金/金属间化合物/热处理/显微组织/晶体结构Key words
high entropy alloy/intermetallic compounds/heat treatment/microstructure/crystal structure分类
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覃业恒,张越,张骁,杨程,陈迅,王乔,赵鹏程,刘亮..(Ti1/4Zr1/4V1/4Nb1/4)Alx高熵金属间化合物合金的组织结构研究[J].铸造,2024,73(8):1059-1064,6.
