陈佳俊,唐昌平,谢红梅,刘筱

• 1:高温耐磨材料及制备技术湖南省国防科技重点实验室新能源储存与转换先进材料湖南省重点实验室湖南科技大学材料科学与工程学院
• 2:广东省精密装备与制造技术重点实验室华南理工大学
• 3:长江师范学院材料科学与工程学院

摘要(Abstract)：

合金的强度和塑性通常呈现倒置关系，即强度提高的同时往往伴随着塑性的降低。形成双峰分布晶粒被认为是解决合金强度-塑性矛盾的新方法。本文介绍了在常见的铜、铝、镁合金中形成双峰分布晶粒的研究进展，总结了这3种合金中形成双峰分布晶粒的制备方法及其对力学性能的影响。总结来看，形成双峰分布晶粒的方法可分为“细化法”和“合成法”。“细化法”和“合成法”在铜合金和铝合金中均有应用，镁合金中则主要采用“细化法”。双峰分布晶粒提高了合金的应变硬化能力和变形协调能力，与均匀的等轴晶粒组织相比，具有更为优异的力学性能，在未来有望获得持续关注。

关键词(KeyWords)： 双峰分布晶粒;力学性能;铜合金;铝合金;镁合金

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52075167,51605159,52071139);; 湖南省自然科学基金(2020JJ4307);; 湖南省教育厅优秀青年项目(19B214);; 广东省精密装备重点实验室开放课题(PEMT202103)

作者(Author): 陈佳俊,唐昌平,谢红梅,刘筱

DOI: 10.13289/j.issn.1009-6264.2021-0465

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