摘要
与传统合金的设计理念完全不同,高熵合金是由至少五种元素以等原子比或近等原子比组成的合金,并表现出许多传统合金所不具备的性能。其中,CoCrFeMnNi系高熵合金作为最早开发的高熵合金,引发了研究者的广泛关注。制备技术的发展对开发性能优异的高熵合金以及促进高熵合金的实际应用具有至关重要的作用。本文介绍了高熵合金主流制备技术的工作原理及特点,包括机械合金化、雾化法、熔铸法、粉末冶金、增材制造、磁控溅射和激光熔覆,并着重对不同方法制备的CoCrFeMnNi系合金的组织及性能进行了对比分析,最后在此基础上对高熵合金制备技术的未来发展进行了展望。
Different from the design concept of traditional alloys, high-entropy alloys are composed of at least five elements at equal atomic ratios or nearly equal atomic ratios, and exhibit many properties that traditional alloys do not have. Among them, CoCrFeMnNi high-entropy alloy, as the first developed high-entropy alloy, has attracted wide attention from researchers. The development of preparation technology plays an important role in developing high-entropy alloys with excellent properties and promoting their practical applications. In this paper, the working principle and characteristics of the main preparation techniques of high entropy alloys are introduced, including mechanical alloying, powder atomization, mel- ting and casting, powder metallurgy, additive manufacturing, magnetron sputtering and laser cladding. The microstructure and properties of CoCrFeMnNi alloys prepared by different methods are compared and analyzed. Finally, on this basis, the future development of high-entropy alloy preparation technology is prospected.
作者
曹炜鹏
李杰
孙小斌
吴凯迪
万德成
冯运莉
CAO Weipeng;LI Jie;SUN Xiaobin;WU Kaidi;WAN Decheng;FENG Yunli(School of Metallurgy and Energy,North China University of Science and Technology,Tangshan 063210,Hebei,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2024年第11期184-195,共12页
Materials Reports
基金
国家自然科学基金(51974134)
河北省科技重大专项项目(21281008Z)
唐山市应用基础研究项目(21130237C)。
