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| CoCrFeNi系高熵合金研究进展 |
| Research Progress of CoCrFeNi High Entropy Alloy |
| Received:April 21, 2023 |
| DOI：10.3969/j.issn.1674-6457.2023.08.019 |
| 中文关键词: 高熵合金 CoCrFeNi系 模拟计算 合金元素 力学性能 |
| 英文关键词: high entropy alloy CoCrFeNi alloy simulation calculation alloy elements mechanical properties |
| 基金项目:国家自然科学基金(52074193);天津市自然科学基金科技计划重点项目(22JCZDJC00770);天津市教委科研计划重点项目(2022ZD022) |
| Author Name | Affiliation | | MENG Shuang | Faculty of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China | | GUO Dong | Faculty of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China | | ZHAO Dong-feng | Faculty of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China | | YU Qing | Faculty of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China | | LIN Mao-mao | Faculty of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China |
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| 中文摘要: |
| 高熵合金具有独特的微观结构和特性，作为一种新型的高性能材料，逐渐获得了国内外研究人员的广泛关注。高熵合金具备多元化的元素组成方式，不但没有形成传统概念中复杂的相结构，反而展现出了更优异的性能，在诸多领域均具有良好的应用前景。在当前的高熵合金体系中，CoCrFeNi系研究最为广泛，其研究内容主要体现在通过添加不同元素或进行退火热处理对原合金体系改性进而获得优异性能的材料。首先，结合CoCrFeNi体系对高熵合金的定义和性能特点进行了分析和总结;其次，从热力学和动力学角度论述了CoCrFeNi系高熵合金的结构预测、层错能计算及缺陷动力学分析;再次，总结了Al、Ti、Cu、Mn和C元素对CoCrFeNi系高熵合金显微组织和力学性能的影响;最后，分析了当前的研究现状并进行了展望。 |
| 英文摘要: |
| As a new high performance material, high entropy alloy has gradually got the attention of the world in recent years due to its distinctive microstructure and properties. The diversified element composition not only avoids the formation of complex phase structures in the traditional concept, but also exhibits superior performance to conventional alloys and has a wide range of potential applications. The CoCrFeNi system is now the mostly studied high entropy alloy system, which is mostly seen in the modification of the original alloy system through the addition of other elements and annealing treatment to produce superior material properties. The definition and characteristics of a high entropy alloy combined with the CoCrFeNi system were firstly examined and summarized. Then, the structure prediction, calculation of layer fault energy and defect dynamics analysis of CoCrFeNi high entropy alloy were discussed from the perspective of thermodynamics and dynamics. Next, the effect of Al, Ti, Cu, Mn and C elements on the microstructure and mechanical properties of CoCrFeNi high entropy alloy was summarized. Finally, the current research status was analyzed and the prospect was put forward. |
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