摘要
介绍了激光增材制造高熵合金的工艺方法,从成形工艺、合金元素含量(摩尔分数)、热处理工艺和增强相添加等几个方面综述了国内外激光增材制造高熵合金的研究进展,分析了激光熔化沉积和选区激光熔化成形两种主要激光增材制造技术,以及两种技术制备高熵合金的微观结构和力学性能,指出了高熵合金激光增材制造技术的发展趋势及存在的主要问题,并提出了改进措施。
The fabricating processes of the high-entropy alloys(HEAs)fabricated by the laser additive manufacturing were briefly introduced in this paper.The recent research progresses on the laser additive manufacturing of HEAs were reviewed,especially in terms of forming process,element content(molar fraction),heat treatment process,and enhanced phase.Laser melting deposition(LMD)and selective laser melting(SLM)processes were compared and analyzed,and the microstructure and mechanical properties of HEAs fabricated by LMD and SLM were investigated.Finally,the development trend and the major problems of HEAs prepared by the laser additive manufacturing were point out,and the improvement measures were proposed.
作者
耿冬妮
陈晋市
师海月
GENG Dong-ni;CHEN Jin-shi;SHI Hai-yue(School of Mechanical and Aerospace Engineering,Jilin University,Changchun 130022,China)
出处
《粉末冶金技术》
CAS
CSCD
北大核心
2022年第3期195-203,共9页
Powder Metallurgy Technology
基金
国家自然基金资助项目(51705189)。
关键词
高熵合金
激光增材制造
激光熔化沉积
选区激光熔化成形
微观组织
high-entropy alloys
laser additive manufacturing
laser melting deposition
selective laser melting
microstructure
