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粉末冶金制备TiAl合金研究进展
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作者单位:

1.哈尔滨工业大学 材料科学与工程学院;2.哈尔滨工业大学 金属精密热加工国家重点实验室

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基金项目:

国家自然科学基金项目:Nos.51434007和51371064


Research progress of TiAl alloy from powder metallurgy
Author:
Affiliation:

1.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin,;2.The National Key Laboratory for Precision Hot Forming of Metals,Harbin;3.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin

Fund Project:

国家自然科学基金项目:Nos.51434007和51371064

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    摘要:

    轻质高强耐高温的TiAl合金一直是备受瞩目的先进结构材料,在航空航天、汽车等领域应用潜力巨大。但TiAl合金热加工性差,采用传统方法热成形难度大。而粉末冶金由于近净成形的特点,在制备复杂TiAl合金零部件上具有显著优势。近年来,科研工作者在TiAl合金粉末烧结技术上展开了大量工作,并取得一定进步。本文结合TiAl合金粉末成形技术的国内外发展现状,综述了放电等离子烧结(SPS)、热等静压、热压烧结、喷射成形、金属注射成形等方法制备TiAl合金的工艺、显微组织、力学性能和零部件,论述了上述制备方法的特点以及目前存在的不足,并提出了粉末冶金成形TiAl合金零部件的建议与未来发展方向。

    Abstract:

    :TiAl alloy are high-profile advanced structural material because of its high strength-to-weight ratio and high service temperature, which has great potential in aerospace,automotiveandotherfields. However, TiAl alloy has poor thermal workability and is difficult to be formed by traditional methods. Powder metallurgy has a significant advantage in preparing complex TiAl alloy parts due to the characteristics of near-net forming.In recent years, researchers have done a lot of work on sintering technology of TiAl alloy powder and made some progress.The Process, microstructure,mechanical propertiesandparts of TiAl alloy using spark plasma sintering (SPS), hot isostatic pressing(HIP), hot pressing sintering,spray depositionand injection moldingin recent years were reviewed. The features and existing problems of above preparation methods were discussed. Meanwhile, some suggestions on powder metallurgy forming TiAl alloy parts and its future development were proposed.

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陈玉勇,叶园,张宇,胡连喜,孙剑飞.粉末冶金制备TiAl合金研究进展[J].稀有金属材料与工程,2023,52(11):4002~4012.[Chen Yuyong, Ye Yuan, Ye Yuan, Zhang Yu, Sun Jianfei. Research progress of TiAl alloy from powder metallurgy[J]. Rare Metal Materials and Engineering,2023,52(11):4002~4012.]
DOI:10.12442/j. issn.1002-185X.20220809

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  • 收稿日期:2022-10-17
  • 最后修改日期:2022-11-07
  • 录用日期:2022-11-24
  • 在线发布日期: 2023-11-27
  • 出版日期: 2023-11-22