Journal of Materials Science

, Volume 30, Issue 20, pp 5185–5191 | Cite as

Influence of silicon in aluminium on the mechanical properties of titanium/aluminium friction joints

  • A. Fuji
  • K. Ameyama
  • T. H. North


The influence of post-weld heat-treatment and of residual silicon in aluminium on the mechanical properties of dissimilar friction joints between titanium and aluminium was investigated. Although joint tensile strength and bend test properties were drastically reduced following post-weld heat treatment, the responses of Ti/h.p. Al and Ti/c.p. Al joints were quite different. The tensile strength and bend test properties of Ti/h.p. Al joints were markedly decreased by heat-treatments involving shorter holding times at lower temperatures.

Joint failure in post-weld heat-treated joints was associated with Al3Ti formation at the bondline region. The growth rate of the Al3Ti intermetallic layer at the joint interface was much faster in post weld heat-treated Ti/h.p. joints. More than 20 at%Si segregated in the region between the titanium substrate and the Al3Ti intermetallic phase in heat-treated Ti/c.p. Al joints. It is suggested that silicon segregation retards Al3Ti formation by acting as a barrier to titanium and aluminium diffusion at the joint interface.


Tensile Strength Al3Ti Friction Joint Intermetallic Layer Titanium Substrate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    H. Kusaba and Y. Murakami, “Titanium and its applications,” (Nikkan Kogyo Shinbunsha, Tokyo, 1983) (in Japanese).Google Scholar
  2. 2.
    T. Enjo and K. Ikeuchi, J. Jpn. Weld. Soc. 50 (1981) 31.Google Scholar
  3. 3.
    A. Fuji, T. H. North, K. Ameyama and M. Futamata, Mater. Sci. Tech. 8 (1992) 219.CrossRefGoogle Scholar
  4. 4.
    A. Fuji and K. Ameyama, Ibid. 12 (1994) 101.Google Scholar
  5. 5.
    S. Elliott and E. R. Wallach, Metal Construct. 4 (1981) 221.Google Scholar
  6. 6.
    T. B. Massalski, “Binary alloy phase diagrams” ASM, Metals Park, 1985).Google Scholar
  7. 7.
    T. Enjo and K. Ikeuchi, J. Light Metals 36 (1986) 143.CrossRefGoogle Scholar
  8. 8.
    H. Nakajima and M. Koiwa, Jpn. Inst. Metal. Bull. 30 (1991) 526.CrossRefGoogle Scholar
  9. 9.
    G. K. Kharchenko, Auto. Weld. 7 (1974) 17 (in Russian).Google Scholar

Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • A. Fuji
    • 1
  • K. Ameyama
    • 2
  • T. H. North
    • 3
  1. 1.Department of Mechanical EngineeringKitami Institute of TechnologyHokkaidoJapan
  2. 2.Department of Mechanical EngineeringRitsumeikan UniversityShigaJapan
  3. 3.Department of Metallurgy and Materials ScienceUniversity of TorontoTorontoCanada

Personalised recommendations