Microstructures and Mechanical Properties of C-containing FeCoCrNi High-entropy Alloy Fabricated by Selective Laser Melting

摘要：

　　Additive manufacturing(AM)is an emerging technology that has been widely used for fabricating components with highly complex shapes.In this work,C-containing FeCoCrNi high entropy alloy with full density was successfully fabricated using selective laser melting(SLM).The effects of processing parameters on the microstructures and mechanical properties were investigated,and the underlying mechanism was discussed.The density of HEA is dependent on the SLM processing parameter.The increase of the SLM scanning power or the decrease of the scanning speed leads to the increase of the density of HEA.The grain size reduced when the high scanning power or the low scanning speed was used.The C-containing HEAs with full density has a yield strength of 650 MPa,and an elongation of 13.5%.

关键词： Selective laser melting High entropy alloy Microstructure Mechanical properties

作者: Zhou Rui Liu Yong Zhou Chengshang Li Siqin Wu Wenqian Song Min Liu Bin Liang Xiaopeng Liaw P.K.

作者单位: State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China School of Materials Science and Engineering,Zhejiang University,Hangzhou 310058,China School of Materials Science and Engineering,Central South University,Hunan,Changsha 410083,China Department of Materials Science and Engineering,The University of Tennessee,Knoxville,TN 37996,USA

会议类型: 国际会议

会议名称: 2018世界粉末冶金大会

会议地点: 北京

会议语种:英文

页码: 1656-1664

在线出版日期: 2018-09-16（万方平台首次上网日期，不代表论文的发表时间）