CrCoNi三元中熵合金强化方法的研究进展  

Research Progress on Strengthening Method of CrCoNi Ternary Medium Entropy Alloys

作　　者：刘思聪 朱和国[1] LIU Sicong;ZHU Heguo(School of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学材料科学与工程学院,江苏南京210094

出　　处：《热加工工艺》2023年第7期1-6,共6页Hot Working Technology

基　　金：国家自然科学基金项目(51571118)。

摘　　要：CrCoNi三元中熵合金具有单相FCC结构,塑性高且易产生加工硬化现象,但CrCoNi合金仍存在屈服强度偏低的问题,需要进一步强化来提升性能。从合金化元素添加、冷热变形工艺和热处理方面介绍了CrCoNi合金常见的强化方法,综述了其对CrCoNi合金的强化机制及性能的影响。CrCoNi ternary medium entropy alloys have single-phase FCC structure,high plasticity and easy to produce work hardening phenomenon.However,CrCoNi alloys still have the problem of low yield strength,need to be further strengthened to improve its performance.The common strengthening methods of CrCoNi alloys were introduced from the aspects of alloying element addition,cold and hot deformation process and heat treatment,and their effects on the strengthening mechanism and properties of CrCoNi alloys were summarized.

关 键 词：三元中熵合金 力学性能 合金化元素 加工工艺 

分 类 号：TG133[一般工业技术—材料科学与工程] TG306[金属学及工艺—合金]