Fabricating CoCrFeMnNi high entropy alloy via selective laser melting in-situ alloying

作     者：Peng Chen Sheng Li Yinghao Zhou Ming Yan Moataz M.Attallah Peng Chen;Sheng Li;Yinghao Zhou;Ming Yan;Moataz M.Attallah

作者机构：Advanced Materials Processing LaboratoryUniversity of BirminghamBirmingham B152TTUK Department of Materials Science and Engineeringand Shenzhen Key Laboratory for Additive Manufacturing of High Performance MaterialsSouthern University of Science and TechnologyShenzhen 518055China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2020年第36卷第8期

页      面：40-43页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported financially by the Shenzhen ScienceandTechnologyInnovationCommission(Nos.ZDSYS201703031748354 and JCYJ20170817110358927) the Science and Technology Planning Project of Guangdong Province of China(No.2017B090911003) the Natural Science Foundation of Guangdong Province(No.2016A030313756) 

主　　题：High entropy alloys Laser processing Selective laser melting In-situ alloying CoCrFeMnNi Crystal structure 

摘      要：Quasi-equiatomic Co Cr Fe Mn Ni high entropy alloy(HEA)has been in-situ alloyed by selective laser melting(SLM)from a blend of Co Cr Fe Ni pre-alloyed powder and Mn elemental *** blended powder shows good printability with various SLM parameters and the as-built HEA samples achieve a reliable forming *** the slight evaporation of Mn,energy dispersive spectrometer mapping and Xray diffraction results show that the as-built HEA has a homogeneous chemical distribution and presents a single face-centred-cubic(fcc)phase,indicating successful in-situ *** study has verified the feasibility of using blended powder to prepare high-quality HEA by SLM.