Skip to main content

Advertisement

SpringerLink
Log in

High temperature tensile properties of directionally solidified Ni-43Ti-4Al-2Nb-2Hf alloy

  • Published:
Rare Metals Aims and scope Submit manuscript

Abstract

By liquid metal cooling (LMC) process, the Ni-43Ti-4Al-2Nb-2Hf (%, atomic fraction) alloy was directionally solidified (DS). The microstructure and tensile properties at room and elevated temperature were investigated. It was found that the DS process significantly improves the room temperature tensile strength, increasing by 70% compared with the as-cast alloy. After appropriate heat treatment (HT), the average tensile strength reaches above 1900 MPa, nearly twice of the as-cast one. At 800 and 900 °C, the tensile strengths are about 308 and 169 MPa, respectively.

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. Robert B., Shape-memory materials: a review of technology and applications, Assembly Automation, 2009, 29(3): 214.

    Article  Google Scholar 

  2. Mehmet K., Nuri O., and Gül T., The effect of the combustion channels on the compressive strength of porous NiTi shape memory alloy fabricated by SHS as implant material, Current Opinion in Solid State and Materials Science, 2010 (14): 21.

  3. Xu Z.Y., and Jiang B.H., Shape Memory Materials, Shanghai Jiaotong University Press, Shanghai, 2000: 75.

    Google Scholar 

  4. Yang Y.Z., Zhao X.Q., Meng L.J., Yang S.L., and Xu H.B., Microstructure and transformation behavior of Ni-Ti-Nb shape memory alloys with low Nb content, Acta Metall. Si., 2005, 41(6): 627.

    CAS  Google Scholar 

  5. Otsuka K., and Wayman C.M., Shape Memory Materials, Cambridge University Press, London, 1998: 51.

    Google Scholar 

  6. Koizumi Y., Ro Y., Nakazawa S., and Harada H., NiTi-base intermetallic alloys strengthened by Al substitution, Mater. Sci. Eng. A, 1997, 223(2): 36.

    Article  Google Scholar 

  7. Song X.Y., Li Y., Zhang F., and Li S.S., NiTiAl intermetallic alloys strengthened by Mo replacement, Chinese Journal of Aeronautics, 2010, 26(23): 715.

    Google Scholar 

  8. Zheng Y.R., Cai Y.L., and Ruan Z., Investigation of effect mechanism of hafnium and zirconium in high temperature materials, Journal of Aeronautical Materials, 2006, 26(3): 25.

    CAS  Google Scholar 

  9. Warren P., Murakami Y., and Koizumi Y., Phase separation in NiTi-Ni2TiAl alloy system, Mater. Sci. Eng. A, 1997, 223A(12): 36.

    Google Scholar 

  10. Jung J., Ghosh G., and Olson G.B., A comparative study of precipitation behavior of Heusler phase (Ni2TiAl) from B2-TiNi in Ni-Ti-Al and Ni-Ti-AI-X (X= Hf, Pd, Pt, Zr) alloys, Acta Materialia, 2003, 51(20): 6341.

    Article  CAS  Google Scholar 

  11. Xu J., Zhao X.Q., and Gong S.K., The influence of Nb diffusion on the oxidation behavior of TiNiAlNb alloys with different Ti/Ni ratio, Mater. Sci. Eng. A, 2007, 458(23): 381.

    Google Scholar 

  12. Meng L.J., Li Y., Zhao X.Q., and Xu H.B., Effect of Nb on strengthening mechanism of Ti-rich TiNiAl intermetallics, Acta Aeronautica et Astronautica Sinica, 2007, 28(5): 1206.

    CAS  Google Scholar 

  13. Meng L.J., Li Y., Zhao X.Q., and Xu H.B., The mechanical properties of intermetallic Ni50−x Ti50Alx alloys (x=6, 7, 8, 9), Intermetallics, 2007, 43(15): 814.

    Article  Google Scholar 

  14. Xu H.B., Meng L.J., Xu J., Li Y., and Zhao X.Q., Mechanical properties and oxidation characteristics of TiNiAl(Nb) intermetallics, Intermetallics, 2007, 15(5): 778.

    Article  CAS  Google Scholar 

  15. Zhao X.Q., Xu J., Tang L., and Gong S.K., High temperature oxidation behavior of NiTiNb intermetallic alloys, Intermetallics, 2007, 54(15): 1105.

    Article  Google Scholar 

  16. Zhang H.R., Gao M., Tang X.X., and Zhang H., Interaction between Ti-47Al-2Cr-2Nb alloy and Y2O3 ceramic during directional solidification, Acta Metall. Sin., 2010, 46(7): 890.

    Article  CAS  Google Scholar 

  17. Pan Q., Zheng L.J., Sang Y.R., Zhou L., Li Y., and Zhang H., Microstructural characteristics of directionally solidified alloys Ni-44Ti-5Al-2Nb-1Mo, Acta Aeronautica et Astronautica Sinica, 2011, 32(7): 1345.

    CAS  Google Scholar 

  18. Yang C.L., Zhang X.L., Zheng L.J., and Zhang H., Effect of heating temperature on microstructure of directionally solidified Ni-45Ti-5Al alloy, Hot Working Technology, 2011, 40(9): 71.

    Google Scholar 

  19. Pan Q., Zheng L.J., Sang Y.R., Li Y., Zhou L., and Zhang H., Effect of casting temperature on microstructure in a directionally solidified Ni-44Ti-5Al-2Nb-1Mo alloy, Rare Metals, 2011, 30(s): 349.

    Article  CAS  Google Scholar 

  20. Sang Y.R., Zheng L.J., Pan Q., Zhou L., Li Y., and Zhang H., Microstructural characteristics of directionally solidified Ni-43Ti-4Al-2Nb-2Hf alloy, Rare Metals, 2011, 30(s): 340.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China

    Dongwen Jiang, Lijing Zheng, Lei Zhou, Liwen Pan, Xiaoxia Tang & Hu Zhang

Authors
  1. Dongwen Jiang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Lijing Zheng
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Lei Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Liwen Pan
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Xiaoxia Tang
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Hu Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Hu Zhang.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Jiang, D., Zheng, L., Zhou, L. et al. High temperature tensile properties of directionally solidified Ni-43Ti-4Al-2Nb-2Hf alloy. Rare Metals 31, 328–331 (2012). https://doi.org/10.1007/s12598-012-0514-7

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12598-012-0514-7

Keywords

Search

Navigation