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工程科学学报.第43卷,第11期:1459-1473.2021年11月 Chinese Journal of Engineering,Vol.43,No.11:1459-1473,November 2021 https://doi.org/10.13374/j.issn2095-9389.2021.01.27.003;http://cje.ustb.edu.cn 难熔高熵合金:制备方法与性能综述 宗乐),徐流杰)四,罗春阳),魏世忠) 1)河南科技大学材料科学与工程学院,洛阳4710032)河南科技大学摩擦学与材料防护教有部工程研究中心.洛阳4710033)河南科技 大学金属材料磨损控制与成型技术国家地方联合工程研究中心,洛阳471003 ☒通信作者,E-mail:wmxlj@126.com 摘要从加工方法、微观结构以及各类性能三方面介绍了难熔高熵合金(Refractory high-entropy alloys,.RHEAs),最后对难 熔高嫡合金的发展和未来进行了展望.以MoNbTaVW为代表的难熔高熵合金在高温下表现出优于传统镍基高温合金的压 缩屈服强度,且屈服强度随温度的变化更加缓慢,高温力学性能优异:以MoNbTaVW、MoNbTaTiZr、HfNbTiZr等为代表的难 熔高嫡合金,与商用高温合金、难熔金属、雄熔合金以及工具钢相比,展现出更优的耐磨性能.以W38T6C1sV1,合金为代表 的难熔高嫡合金在辐照后,除了析出小颗粒第二相外,不存在位错环缺陷结构,抗辐照性能优异.提出了难熔高熵合金未来 发展的两大方向:建立高通量的实验和计算方法继续探索更多的难熔高熵合金组成和结构模型:探索多场耦合环境下难熔高 嫡合金的服役行为 关键词难熔高熵合金:加工方法:微观结构:相组成:性能 分类号TG132.3+2 Refractory high-entropy alloys:A review of preparation methods and properties ZONG Le,XU Liu-jie,LUO Chun-yang,WEI Shi-zhong 1)School of Materials Science and Engineering.Henan University of Science and Technology,Luoyang 471003,China 2)Engineering Research Center of Tribology Materials Protection,Ministry of Education,Henan University of Science and Technology,Luoyang 471003,China 3)National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials,Henan University of Science and Technology, Luoyang 471003,China Corresponding author,E-mail:wmxlj@126.com ABSTRACT Alloying is one of the main ways to achieve desirable properties in materials.The design concept is based on one or two metal elements,supplemented with multiple trace elements to achieve altered or optimized properties.With the advancement in technology,the traditional alloy has evolved from simple to complex compositions,thus improving their properties and promoting the progress of civilization.High-entropy alloys (HEAs)are a new type of multi-master alloys that are popular in the recent two decades. Unlike conventional alloys,HEAs comprise multiple alloying elements according to the isoatomic or non-isoatomic ratios and have several unique properties,such as high strength and hardness,excellent wear and corrosion resistance,thermal stability,and irradiation resistance.Refractory high-entropy alloys (RHEAs),HEAs made of refractory metals,have attracted great attention because of their excellent high-temperature mechanical properties.This paper discusses RHEAs from three aspects:processing methods,microstructure, and properties.Finally,this work presents the development and future prospects of RHEAs.RHEAs represented by MoNbTaVW alloys show better compressive yield strengths at high temperatures and a slower change of yield strength with temperature than traditional Ni- based high-temperature alloys.Compared with commercial superalloys,refractory metals,refractory alloys,and tool steels,RHEAs,such 收稿日期:2021-01-27 基金项目:国家自然科学基金资助项目(U1704152)难熔高熵合金:制备方法与性能综述 宗    乐1),徐流杰2) 苣,罗春阳1),魏世忠3) 1) 河南科技大学材料科学与工程学院,洛阳 471003    2) 河南科技大学摩擦学与材料防护教育部工程研究中心,洛阳 471003    3) 河南科技 大学金属材料磨损控制与成型技术国家地方联合工程研究中心,洛阳 471003 苣通信作者, E-mail:wmxlj@126.com 摘    要    从加工方法、微观结构以及各类性能三方面介绍了难熔高熵合金 (Refractory high-entropy alloys,RHEAs),最后对难 熔高熵合金的发展和未来进行了展望. 以 MoNbTaVW 为代表的难熔高熵合金在高温下表现出优于传统镍基高温合金的压 缩屈服强度,且屈服强度随温度的变化更加缓慢,高温力学性能优异;以 MoNbTaVW、MoNbTaTiZr、HfNbTiZr 等为代表的难 熔高熵合金,与商用高温合金、难熔金属、难熔合金以及工具钢相比,展现出更优的耐磨性能. 以 W38Ta36Cr15V11 合金为代表 的难熔高熵合金在辐照后,除了析出小颗粒第二相外,不存在位错环缺陷结构,抗辐照性能优异. 提出了难熔高熵合金未来 发展的两大方向:建立高通量的实验和计算方法继续探索更多的难熔高熵合金组成和结构模型;探索多场耦合环境下难熔高 熵合金的服役行为. 关键词    难熔高熵合金;加工方法;微观结构;相组成;性能 分类号    TG132.3+2 Refractory high-entropy alloys: A review of preparation methods and properties ZONG Le1) ,XU Liu-jie2) 苣 ,LUO Chun-yang1) ,WEI Shi-zhong3) 1) School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China 2) Engineering Research Center of Tribology & Materials Protection, Ministry of Education, Henan University of Science and Technology, Luoyang 471003, China 3) National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan University of Science and Technology, Luoyang 471003, China 苣 Corresponding author, E-mail: wmxlj@126.com ABSTRACT    Alloying is one of the main ways to achieve desirable properties in materials. The design concept is based on one or two metal  elements,  supplemented  with  multiple  trace  elements  to  achieve  altered  or  optimized  properties.  With  the  advancement  in technology, the traditional alloy has evolved from simple to complex compositions, thus improving their properties and promoting the progress of civilization. High-entropy alloys (HEAs) are a new type of multi-master alloys that are popular in the recent two decades. Unlike  conventional  alloys,  HEAs  comprise  multiple  alloying  elements  according  to  the  isoatomic  or  non-isoatomic  ratios  and  have several unique properties, such as high strength and hardness, excellent wear and corrosion resistance, thermal stability, and irradiation resistance.  Refractory  high-entropy  alloys  (RHEAs),  HEAs  made  of  refractory  metals,  have  attracted  great  attention  because  of  their excellent high-temperature mechanical properties. This paper discusses RHEAs from three aspects: processing methods, microstructure, and properties. Finally, this work presents the development and future prospects of RHEAs. RHEAs represented by MoNbTaVW alloys show better compressive yield strengths at high temperatures and a slower change of yield strength with temperature than traditional Ni￾based high-temperature alloys. Compared with commercial superalloys, refractory metals, refractory alloys, and tool steels, RHEAs, such 收稿日期: 2021−01−27 基金项目: 国家自然科学基金资助项目(U1704152) 工程科学学报,第 43 卷,第 11 期:1459−1473,2021 年 11 月 Chinese Journal of Engineering, Vol. 43, No. 11: 1459−1473, November 2021 https://doi.org/10.13374/j.issn2095-9389.2021.01.27.003; http://cje.ustb.edu.cn
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