Skip to main content
SpringerLink
Log in

Effects of HIPing pressure on microstructures and properties of TiAl alloy

  • Published:
Journal of Central South University of Technology Aims and scope Submit manuscript

Abstract

Blended elemental Ti-34% Al powders (mass fraction), containing 1.5% TiC, were hot isostatic pressed to prepare TiAl alloys. The effects of HIPing pressure on the sintered density, microstructure, constitutions phase were studied in details. The results show that the density of TiAl alloy increases repaidly with the increase of the HIPing pressure. At the same time, with the increase of pressure, the Ti3Al phase in matrix disappears. TiC reacts with other substance, forming Ti2AlC phase, which precipitates at grain boundaries. With the increase of hot isostatic pressing (HIPing) pressure, the shrinkage of the alloys increases, the fine spherical Ti2AlC phase can meet together and forms a needle-shape Ti2AlC, and the amount of needle-shaped Ti2AlC phase increases. The composite material of TiAl containing C can be made easily by HIPing technology.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Ronald T M E. Advanced materials to fly high in NASP[J]. Advanced Mater Proc, 1989, 135(5): 29.

    Google Scholar 

  2. Shechtman D, Blackburn M J, Lipsitt H A. The plastic deformation of TiAl[J]. Metal Trans A, 1974, 5A(6): 1373.

    Article  Google Scholar 

  3. Yun J H, Oh M H, Nam S W, et al. Microalloying effects in TiAl + Mo alloys[J]. Materials Science and Engineering, 1997, A239–240: 702–708.

    Google Scholar 

  4. Mabuchi H, Tsuda H, Nakayama Y. Processing of TiAl-Ti2AlN composites and their compressive properties[J]. J Mater Res, 1992, 7(4): 894.

    Google Scholar 

  5. LIU Zhi-jian, QU Xuan-hui, HUANG Bai-yun. TiAl alloys made from thermal extruded elemental powder mixtures[J]. Journal of Iron and Steel Research (in Chinese), 1997, 9: 135.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. State Key Laboratory for Powder Metallurgy, Central South University, 410083, Changsha, China

    Chen Jian-xun, Huang Bai-yun, Zhou Ke-chao & Zheng Qing

Authors
  1. Chen Jian-xun
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Huang Bai-yun
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Zhou Ke-chao
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Zheng Qing
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Foundation item: The National Natural Science Foundation of China(No. 5963412)

Biography of the first author: CHEN Jian-xun, associate professor, born in 1965, majoring in HIP technology.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Chen, Jx., Huang, By., Zhou, Kc. et al. Effects of HIPing pressure on microstructures and properties of TiAl alloy. J Cent. South Univ. Technol. 7, 140–142 (2000). https://doi.org/10.1007/s11771-000-0022-z

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11771-000-0022-z

Key words

Search

Navigation