TiAl基合金的增材制造技术研究进展

doi:10.3901/JME.2021.08.115

摘要/Abstract

摘要： TiAl基合金是一种新型的轻质高温结构材料，在航空、航天领域具有很好的应用前景。增材制造技术作为一项先进的快速近净成形技术，非常适合用于具有复杂结构、高精度要求的发动机高温结构件的制造。在分析相关文献的基础上，评述了国内外TiAl基合金增材制造技术主要研究进展，包括激光熔化沉积、激光选区熔化、电子束选区熔化和电弧熔丝等增材制造方法的原理、优势和最新进展情况，以及TiAl基复合材料和有关梯度材料的研究现状，分析了现阶段TiAl基合金增材制造技术的不足，并在增材制造用TiAl基合金成分设计、工艺优化与组织性能改善、新型TiAl基材料开发和复合增材制造技术探索等方面提出了展望。

关键词: TiAl基合金, 增材制造, 组织, 力学性能

Abstract: TiAl-based alloys are a novel lightweight high-temperature structural material with high potential in aviation and aerospace fields. Additive manufacturing is an advanced rapid near-net shape forming technology, which is quite suitable for the manufacture of high-temperature structural parts of aerospace engines with complex structure and high precision requirements. Referring to the published literatures, the research progress on additive manufacturing technologies of TiAl-based alloys, including the principle, advantages and latest development of laser melting deposition, selective laser melting, selective electron beam melting and wire-arc additive manufacturing methods, as well as the research status of TiAl-based composite materials and correlative composite materials were reviewed. The obstacle of additive manufacturing technologies of TiAl-based alloys was analyzed. And some prospects were put forward, including composition design of TiAl-based alloys for additive manufacturing, process optimization and improvement of microstructure and mechanical properties, development of new TiAl-based materials, application of hybrid additive manufacturing.

Key words: TiAl-based alloys, additive manufacturing, microstructure, mechanical property

中图分类号:

TG156

秦仁耀, 张国栋, 李能, 刘伟, 黄帅, 熊华平. TiAl基合金的增材制造技术研究进展[J]. 机械工程学报, 2021, 57(8): 115-132.

QIN Renyao, ZHANG Guodong, LI Neng, LIU Wei, HUANG Shuai, XIONG Huaping. Research Progress on Additive Manufacturing of TiAl-based Alloys[J]. Journal of Mechanical Engineering, 2021, 57(8): 115-132.

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