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2222材料工程  2021, Vol. 49 Issue (2): 1-9    DOI: 10.11868/j.issn.1001-4381.2020.000351
  综述 本期目录 | 过刊浏览 | 高级检索 |
董亚光1, 陈尚1, 王俊升1,2, 靳柯1,2
1. 北京理工大学 材料学院, 北京 100081;
2. 北京理工大学 前沿交叉科学研究院, 北京 100081
Research progress in multi-principal element alloys containing coherent BCC/B2 structure
DONG Ya-guang1, CHEN Shang1, WANG Jun-sheng1,2, JIN Ke1,2
1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;
2. Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, China
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摘要 引入共格析出相是强化合金的重要方式。近年来发现在BCC结构多主元合金中引入共格B2相可有效提升其力学性能,形成了一类重要的合金体系。本文综述了含BCC/B2共格结构多主元合金的研究现状,重点讨论这一系列新型合金在成分、组织形貌、结构稳定性以及力学性能等方面的特征,并指出此类合金在宽温域下强度较高、塑性因成分差异而不同的变化特点。目前,这类合金在高于500℃时的结构稳定性较差,无法满足工程应用的需求,而成分设计是解决此问题较为简单易行的方法。本文旨在为含BCC/B2共格结构多主元合金的设计提供参考。
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关键词 多主元合金共格相有序BCC相结构稳定性力学性能    
Abstract:Introducing coherent precipitates is an important method to strengthen alloys. Recently, it is found that the introduction of coherent B2 phase in multi-principal element alloys with BCC structure can improve the mechanical properties significantly, developing a new class of important series alloys. The up-to-date knowledge of these alloys from the perspectives of composition, microstructure, phase stability, and mechanical properties was summarized. These alloys exhibit high yield strength over a wide temperature regime, but the ductility presents different characterization due to the compositional difference. At present, their engineering application is limited due to their weaker thermal stability at elevated temperature, especially above 500℃, and furthermore, the design of compositional content appears to be more easy method to resolve the problem. This paper aims at providing guidance to further design of multi-principal element alloys with coherent BCC/B2 dual-phases.
Key wordsmulti-principal element alloy    coherent phase    ordered BCC phase    structure stability    mecha-nical property
收稿日期: 2020-04-20      出版日期: 2021-02-27
中图分类号:  TG139  
通讯作者: 靳柯(1988-),男,教授,博士,研究方向:材料辐照损伤、新型核用合金的设计与制备、离子辐照材料表征等,联系地址:北京市海淀区中关村南大街5号北京理工大学材料学院(100081),     E-mail:
董亚光, 陈尚, 王俊升, 靳柯. 含BCC/B2共格结构多主元合金研究进展[J]. 材料工程, 2021, 49(2): 1-9.
DONG Ya-guang, CHEN Shang, WANG Jun-sheng, JIN Ke. Research progress in multi-principal element alloys containing coherent BCC/B2 structure. Journal of Materials Engineering, 2021, 49(2): 1-9.
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