WANG Di1, QIAN Zeyu1, DOU Wenhao1, YANG Yongqiang1, LI Sheng2, BAI Yuchao1, XIAO Zefeng1
(1. School of Mechanical and Automobile Engineering, South China University of Technology, Guangzhou 510640, China;
2. School of Metallurgy and Materials, The University of Birmingham, Birmingham B152TT, UK)
High temperature nickel base alloy is one of the most important high-temperature alloy materials in the aerospace field, which has excellent fatigue resistance and creep characteristics under high temperature and high-pressure conditions. In this paper, we summarized the research progress on rapid manufacturing of high temperature nickel base alloy parts through laser powder bed fusion at home and abroad. First the authors systematically introduced several mature nickel base superalloys and that are still during development of nickel base alloy, then summarizes microstructure and defects characteristics of the SLMed nickel base alloy, and the corresponding changes of microstructure and mechanical properties after heat treatment. At last, several existing hot issues are also listed for SLM fabrication of nickel base alloy.
2018, 
