TiAl合金粉床电子束选区熔化成形研究进展  

Research Progress in TiAl Alloys Prepared by Powder Selective Electron Beam Melting

作　　者：车倩颖 李会霞 贺卫卫 朱纪磊[1,2] 陈睿 程康康[1] 金园园 王宇 CHE Qianying;LI Huixia;HE Weiwei;ZHU Jilei;CHEN Rui;CHENG Kangkang;JIN Yuanyuan;WANG Yu(Xi’an College Sailong Metal Materials Co.,Ltd.,Xi’an 710018,China;State Key Laboratory for Porous Metals Materials,Northwest Institute for Nonferrous Metal Research,Xi’an 710016,China)

机构地区：[1]西安赛隆金属材料有限责任公司,西安710018 [2]西北有色金属研究院金属多孔材料国家重点实验室,西安710016

出　　处：《航空制造技术》2021年第3期52-60,67,共10页Aeronautical Manufacturing Technology

基　　金：广东省重点领域研发计划项目(2019B090904001);陕西省科技重大专项(2019zdzx01–04–03);陕西省重点研发计划(2019GY–196)。

摘　　要：粉床电子束选区熔化成形是增材制造脆性TiAl合金复杂构件的理想技术。从原料粉末、致密化、化学成分、微观组织、凝固及相变、后处理、力学性能、成形精度与表面粗糙度等几个方面综述了粉床电子束选区熔化成形TiAl合金的研究现状,对目前存在的问题及应对措施进行了评述,并对其未来研究方向进行了展望。Powder selective electron beam melting is an ideal additive manufacturing technology for the fabrication of brittle TiAl alloy complex components.In this paper,the research progress in TiAl alloys prepared by selective electron beam melting are reviewed from the aspects of raw material powder,densification,chemical composition,microstructure,solidification and phase change,post-processing,mechanical performance,forming accuracy and surface roughness.The problems existing in the research and the corresponding measures are remarked,and the future development strategies are prospected.

关 键 词：TIAL合金 电子束选区熔化成形 化学成分 微观组织 力学性能 

分 类 号：TG146.23[一般工业技术—材料科学与工程] TG661[金属学及工艺—金属材料]