机构地区: 中南大学材料科学与工程学院粉末冶金国家重点实验室
出 处: 《稀有金属材料与工程》 2011年第12期2252-2256,共5页
摘 要: TiAl基合金作为一种新型轻质高温结构材料,在航空航天和汽车工业有着广泛的应用前景。电子束快速成形技术是目前制备TiAl基合金最新颖、前沿的技术。本文主要介绍了电子束快速成形技术制备TiAl基合金的原理、优势、最新研究进展,以及预合金粉末制备的发展现状,对TiAl基合金的电子束快速成形技术的不足进行了分析并提出了展望。 Intermetallic TiAl based alloys are a novel light-weight high-temperature structural material, with aerospace and automotive industries. Electron beam melting (EBM) is the most novel technology for manufacturing principle and merits of EBM for TiAlbased alloy components, as well as the latest research progress are reported. prealloyed powder is also reported. The obstacle of EBM of TiAl based alloys is analyzed and its prospect is forecast. wide applications in TiAl alloys now. The The present status of