Off-stoichiometry-guided design of high-strength chemically complex intermetallic-based alloys with outstanding ductility  

作　　者：Bo Xiao Jixun Zhang Shaofei Liu Yilu Zhao Lianyong Xu C.T.Liu Tao Yang 

机构地区：[1]Department of Materials Science and Engineering,Mechanical Behavior Division of Shenyang National Laboratory for Materials Science,City University of Hong Kong,Hong Kong,China [2]Center for Advanced Nuclear Safety and Sustainable Development,City University of Hong Kong,Hong Kong,China [3]Hong Kong Institute for Advanced Study,City University of Hong Kong,Hong Kong,China [4]School of Materials Science and Engineering,Harbin Institute of Technology(Shenzhen),Shenzhen 518055,China [5]School of Materials Science and Engineering,Tianjin University,Tianjin 300350,China

出　　处：《Journal of Materials Science & Technology》2023年第29期28-33,共6页材料科学技术（英文版）

基　　金：the City University of Hong Kong ac-knowledge the financial support from the National Natural Sci-ence Foundation of China(Grant Nos.52101151 and52222112);the Hong Kong Research Grant Council(RGC)(Grant Nos.CityU 21205621,11214820,11209021,and C1017-21 G);the Guang-dong Basic and Applied Basic Research Foundation(Grant No.2020A1515110647);Y.L.Z.is grateful for financial support from the National Natural Science Foundation of China(No.52101135);the Shenzhen Science and Technology Program(Grant No.RCBS20210609103202012).

摘　　要：1.Introduction The lasting drive for improved energy efficiency in power gen-eration encourages the innovative design of advanced structural materials with superb mechanical properties[1-6].Among these materials,ordered intermetallic alloys[7-9],as a unique class of metallic materials,have drawn increasing concern from both the scientific and industrial communities due to their intriguing high-temperature properties,strong chemical binding,and low atomic mobility[10,11].However,in light of the insufficient number of slip systems and/or intrinsically weak grain boundary(GB),they are usually brittle at ambient temperature,severely hindering their practical use in engineering systems[12].Previous studies reported that the change in alloy stoichiometry has a significant beneficial effect on the ductility of intermetallic alloys.For instance,Liu et al.

关 键 词：INTERMETALLIC DUCTILITY ALLOYS 

分 类 号：TG146.23[一般工业技术—材料科学与工程]