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Additive manufacturing of high-strength CrMnFeCoNi high-entropy alloys-based composites with WC addition

查看全文 作　　者：Jinfeng [1]Li;Shuo [2]Xiang;Hengwei [3]Luan;Abdukadir [2]Amar;Xue [1]Liu;Siyuan [4]Lu;Yangyang [5]Zeng;Guomin [1]Le;Xiaoying [1]Wang;Fengsheng [1]Qu;Chunli [1]Jiang;Guannan [6]Yang 高影响力作者 机构地区：[1]Institute of Materials,China Academy of Engineering Physics,Mianyang 621907,China;[2]College of Physics and Technology,Xinjiang University,Urumqi,Xinjiang 830046,China;[3]School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China;[4]School of Mechanical Engineering and Mechanics,Ningbo University,Ningbo 315211,China;[5]National key laboratory of shock wave and detonation physics,Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang 621907,China;[6]School of Electromechanical Engineering,Guangdong University of Technology,Guangzhou 510006,China高影响力机构 出　　处：《Journal of Materials Science & Technology》索引2019年第35卷第11期,共5页高影响力期刊 基　　金：supported financially by the Project supported by CAEP Foundation (No.CX2019020);the Science and Technology Plan Project of Sichuan (No.2018G20146);the Special Fund Project of Panzhihua (No.2017CY-G-21) 摘　　要：Laser melting deposition with WC addition has been developed to fabricate high-strength CrMnFeCoNibased high-entropy alloys-based composites.By this technique,a microstructure of compact refined equiaxed grains can be achieved,and the tensile strength can be remarkably improved.The sample with 5 wt%WC addition shows a promising mechanical performance with a tensile strength of 800 MPa and an elongation of 37%.The improvement in mechanical property may be attributed to the formation of Cr(23)C6 reinforcement precipitates,which could promote the heterogeneous nucleation of grains and hinder the propagation of slip bands. 关 键 词：High-entropy alloys Laser metal deposition PRECIPITATES MICROSTRUCTURES Tensile test
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