摘要
选区激光熔化和电子束选区熔化增材制造是较理想的先进高能束增材制造技术。选区激光熔化和电子束选区熔化制备钛铝合金的组织细小,力学性能明显优于铸造合金的,成形后通过合理的热处理工艺,合金能获得良好的高温抗蠕变性能和延展性。高能束增材制造技术很好地解决了传统钛铝合金构件成形问题。综述了钛铝预合金粉末的制备工艺、选区激光熔化和电子束选区熔化技术的工艺和应用以及钛铝合金的组织和性能的研究进展,指出了未来在高能束增材制造钛铝合金方面的研究方向。
Selective laser melting and electron beam selective melting additive manufacturing are ideal advanced high energy beam additive manufacturing techniques. The selective laser melted and electron beam selective melted Ti-Al alloy had a fine microstructure, and better mechanical properties than the cast alloy. The alloy can obtain good high-temperature creep resistance and ductility by reasonable heat treatments after forming. The high energy beam additive manufacturing technique can solve the traditional forming problem of Ti-Al alloy component. The research progress on the preparation of Ti-Al prealloyed powder, the process and application of selective laser melting and electron beam selective melting, and the microstructure and properties of Ti-Al alloy is reviewed. The future research direction of Ti-Al alloy prepared by high-energy beam additive manufacturing is pointed out.
作者
田文琦
杨冬野
李九霄
TIAN Wenqi;YANG Dongye;LI Jiuxiao(School of Materials Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)
出处
《机械工程材料》
CAS
CSCD
北大核心
2021年第6期1-7,共7页
Materials For Mechanical Engineering
基金
国家自然科学基金资助项目(51301157,51434007)。
关键词
高能束增材制造
选区激光熔化
电子束选区熔化
钛铝合金
high energy beam additive manufacturing
selective laser melting
electron beam selective melting
Ti-Al alloy
