CoCrFeMnNi高熵合金组织与力学性能研究进展  

Research Progress on Microstructure and Mechanical Behavior of CoCrFeMnNi High-Entropy Alloy

作　　者：谢马冲 杨坤[2] 李来平 XIE Machong;YANG Kun;LI Laiping(School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China;State Key Laboratory of Porous Metal Materials,Northwest Institute for Non-ferrous Metal Research,Xi'an 710016,China;Western Baode Technology Co.,Ltd.,Xi'an 710299,China)

机构地区：[1]东北大学材料科学与工程学院,辽宁沈阳110819 [2]西北有色金属研究院金属多孔材料国家重点实验室,陕西西安710016 [3]西部宝德科技股份有限公司,陕西西安710299

出　　处：《中国材料进展》2024年第7期627-636,共10页Materials China

基　　金：陕西省青年科技新星项目(2021KJXX-75);西北有色金属研究院种子创新专项(22FY2021)。

摘　　要：等原子比CoCrFeMnNi合金是目前研究最为深入的高熵合金之一,具有许多超越传统合金的优异性能,包括良好的室温塑性、稳定的相结构、优异的低温力学性能等,具有巨大的发展潜力和广泛的应用前景。总结梳理了不同制备工艺下CoCrFeMnNi高熵合金的组织特点,简要讨论了现有制备工艺的优缺点。重点分析论述了该合金的力学性能和变形行为,主要包括各种强化手段对合金力学性能的影响规律,以及合金在高温和低温下的力学性能和变形机制,介绍了合金相稳定性的相关研究进展。最后探讨了限制该合金发展的主要问题,对其未来发展方向进行了展望。Equiatomic CoCrFeMnNi alloy,one of the most widely studied high-entropy alloy,has many excellent properties beyond traditional alloys,including remarkable plasticity,stable phase structure,outstanding cryogenic mechanical properties,etc.,which endow it with great development potential and extensive application prospects.The microstructure characteristics of the CoCrFeMnNi alloy fabricated by various fabrication methods were summarized,and the advantages and disadvantages of these fabrication methods were briefly discussed.The mechanical properties and deformation behaviors of the alloy were mainly analyzed,including the effects of different strengthening methods on the mechanical properties of the alloy and the mechanical properties and deformation mechanisms of the alloy at cryogenic temperature and high temperature.The research progress of the phase stability of the alloy was also introduced.Finally,the major problems restricting the development of the alloy were discussed,and the future development direction of the alloy was prospected.

关 键 词：高熵合金 CoCrFeMnNi 制备工艺 力学性能 相稳定性 

分 类 号：TG139[一般工业技术—材料科学与工程]