摘要
高熵合金是由多种主要元素组成的新型金属材料,固有的多主元和构型熵高等特点,使其具备诸多优异的力学及物理化学性能,从而引起了研究人员的广泛关注。在低温工程应用方面,高熵合金优异的强塑性、良好的韧性和抗冲击能力、较高的相稳定性等特点使其在深空探测、低温超导、气体工业等领域极具应用前景。本文综述了高熵合金的低温研究进展,详细总结了高熵合金在低温环境的变形机制及强韧化机理,并结合传统低温工程材料的性能对比,展望了高熵合金未来低温工程应用的主要方向。
Owing to the multi-principal element and higher intrinsic configurational entropy,high-entropy alloys exhibit excellent mechanical and physicochemical performance,which has garnered extensive attention from researchers.By virtue of the excellent performances in terms of superior strength,ductility,toughness,impact resistance property,and adjustable phase stability,especially in cryogenic environments,high-entropy alloys have broad application prospects in fields such as deep-space exploration,low temperature superconducting,and the gas industry.In this paper,the deformation and strengthening-toughening mechanisms of high-entropy alloys are summarized by reviewing the cryogenic progress.Furthermore,the promising research directions of high-entropy alloys in cryogenic engineering application combined with the performance of traditional cryogenic materials are also presented.
作者
刘俊鹏
陈浩
张弛
杨志刚
张勇
戴兰宏
LIU Junpeng;CHEN Hao;ZHANG Chi;YANG Zhigang;ZHANG Yong;DAI Lanhong(Key Laboratory of Advanced Materials of Ministry of Education,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China;State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,Beijing 100083,China;Beijing Advanced Innovation Center for Materials Genome Engineering,Beijing 100083,China;State Key Laboratory of Nonlinear Mechanics,Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China)
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2023年第6期727-743,共17页
Acta Metallurgica Sinica
基金
国家重点研发计划项目Nos.2022YFE0110800和2021YFB3702300
国家自然科学基金项目Nos.52101169和52273280
关键词
高熵合金
低温性能
变形机理
强韧化策略
high-entropy alloy
cryogenic property
deformation mechanism
strengthening-toughening strategy
