苏翔,卜春成,侯锐,雷远,孙耀,张文好,祁星,沈忠昀,雍雪青

• 1:常州工学院机械工程学院
• 2:南京理工大学材料科学与工程学院
• 3:绍兴市质量技术监督检测院
• 4:上海航天精密机械研究所

摘要(Abstract)：

AlCoCrFeNi_(2.1)共晶高熵合金具有优异的力学性能和极好的铸造性能，能够制造大尺寸、形状复杂的铸件，但是，较低的屈服强度限制其工程化应用。热处理、形变加工和激光加工是提升该合金强度的重要工艺，基于细晶强化、析出强化、位错强化、背应力强化和异质变形诱导强化等强化机制，综述了单个工艺或多个工艺相结合的强化效果，分析了热处理温度和时间、变形温度和应变量、激光扫描速度、能量密度和光斑直径等工艺参数对AlCoCrFeNi_(2.1)共晶高熵合金晶粒尺寸、片层间距、片层结构和纳米强化相等组织演化行为的影响。指出获得纳米相/超细晶-双相异质片层组织，可制备高强高塑AlCoCrFeNi_(2.1)共晶高熵合金。最后，指出未来的研究应侧重于AlCoCrFeNi_(2.1)共晶高熵合金的微观组织演化的精准表征方法，相转变机制和元素扩散理论模型等方面，并阐明工艺参数-显微组织-力学性能之间的内在关联机制。

关键词(KeyWords)： AlCoCrFeNi_(2.1)共晶高熵合金;热处理;形变加工;激光加工;力学性能

Abstract:

Keywords:

基金项目(Foundation): 中国博士后基金面上项目(2023M741700);; 浙江省博士后择优资助项目(ZJ2023036);; 常州市领军型创新人才引进培育项目(CQ20230114);; 常州市应用基础研究项目(CJ20235066);; 南京市场监督管理局科技项目(Kj2024010);; 江苏省自然科学基金青年基金项目(BK20250325)

作者(Author): 苏翔,卜春成,侯锐,雷远,孙耀,张文好,祁星,沈忠昀,雍雪青

DOI: 10.13289/j.issn.1009-6264.2025-0361

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