TiAl基合金电子束快速成形研究进展

Research Progress of Electron Beam Melting Technology for TiAl Intermetallics

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。

Abstract:

Intermetallic TiAl based alloys are a novel light-weight high-temperature structural material, with wide applications in aerospace and automotive industries. Electron beam melting (EBM) is the most novel technology for manufacturing TiAl alloys now. The principle and merits of EBM for TiAl based alloy components, as well as the latest research progress are reported. The present status of prealloyed powder is also reported. The obstacle of EBM of TiAl based alloys is analyzed and its prospect is forecast.