Microstructure Evolution and Tensile Properties of the Alx(CoCrNi)100-x Medium-Entropy Alloys
作者机构：Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and EngineeringUniversity of Science and Technology of ChinaShenyang 110016China Key Laboratory for Anisotropy and Texture of MaterialsMinistry of EducationSchool of Materials Science and EngineeringNortheastern UniversityShenyang 110819China
出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)
年 卷 期：2023年第36卷第12期
页 面：2045-2057页
核心收录：
学科分类：080503[工学-材料加工工程] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化]
基 金：supported by the National Natural Science Foundation of China(NSFC,Grant Nos.52071319 and 51971060) the Foundation for Outstanding Young Scholar sponsored by Institute of Metal Research(IMR),the Foundation for Outstanding Young Scholar sponsored by the Shenyang National Laboratory for Materials Science(L2019F23) the Fundamental Research Project of Shenyang National Laboratory for Materials Science(No.L2019R18)
主 题：Medium-entropy alloys Microstructures Tensile properties Strengthening mechanisms
摘 要：A series of Alx(CoCrNi)100-x(x=0-21 at.%)medium-entropy alloys(MEAs)were designed and prepared to investigate the effects of Al addition on the microstructures and tensile *** results reveal that the lattice structure changes from the initial single FCC structure(x10 at.%),to the FCC and disordered BCC structures(x=10 and 11 at.%),then to the FCC and BCC/B2 structures(11x21 at.%),finally to the duplex BCC/B2 structures(x≥21 at.%)with increasing Al *** with microstructures,significant changes also occur in the corresponding tensile properties with Al addition,showing that the strength increases and the ductility decreases with increasing Al ***,the Al-15 MEA exhibits an acceptable balance of strength and ***,the mechanism of microstructure evolution and the correlation between microstructures and tensile properties were also discussed and clarified.
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