TPWJ, 2009, #1, 12-15 pages
PRODUCING PERMANENT JOINTS OF γ-TiAl BASED ALLOYS USING NANOLAYERED Ti/Al INTERLAYER BY VACUUM DIFFUSION WELDING
Journal The Paton Welding Journal
Publisher International Association «Welding»
ISSN 0957-798X (print)
Issue № 1, 2009 (January)
Pages 12-15
Authors
A.I. USTINOV, Yu.V. FALCHENKO, A.Ya. ISHCHENKO, G.K. KHARCHENKO, T.V. MELNICHENKO and A.N. MURAVEJNIK
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
Abstract
The possibility of producing diffusion bonds of γ-TiAl based alloys using nanolayered Ti/Al interlayer has been studied. It is shown that utilization of nanolayered foil as an intermediate element allows formation of sound joints in vacuum diffusion welding. Peculiarities of microstructure of the joint zone have been studied.
Keywords: vacuum diffusion welding, titanium aluminide, structure, joint zone, nanolayered interlayer
Received: 17.06.08
Published: 28.01.09
References
1. Lasalmonie, A. (2006) Intermetallics: why is it so difficult to introduce them in gas turbine engines? Intermetallics, 14, 1123-1129.
2. Chaturvedi, M.C., Xu, Q., Richards, N.L. (2001) Development of crack-free welds in a TiAl-based alloy. J. Materials of Processing Techn., 118, 174-178.
3. Cam, G., Bohm, K.-H., Kocak, M. (1999) Diffusionsschweissen feingegossener Titanaluminide. Schweissen und Schneiden, 8, 470-475.
4. Zamkov, V.N., Markashova, L.I., Kireev, L.S. et al. (1992) Specifics of structural modifications of heat-resistant Ti
3 Albased alloy in pressure welding. Avtomatich. Svarka, 9/10, 13-16.
5. Yushtin, A.N., Zamkov, V.N., Sabokar, V.K. et al. (2001) Pressure welding of intermetallic alloy γ-TiAl. The Paton Welding J., 1, 33-37.
6. Duarte, L.I., Ramos, A.S., Vieira, M.F. et al. (2006) Solidstate diffusion bonding of γ-TiAl alloys using Ti/Al thin films as interlayers. Intermetallics, 14, 1151-1156.
7. Ramos, A.S., Vieira, M.F., Duarte, L.I. et al. (2006) Nanometric multilayers: a new approach for joining TiAl. Ibid., 14, 1157-1162.
8. Ishchenko, A.Ya., Falchenko, Yu.V., Ustinov, A.I. et al. (2007) Diffusion welding of microdispersed AMg5 + 27 % Al
2O
3 composite with application of nanolayered Ni/Al foil. The Paton Welding J., 7, 2-5.
9. Ustinov, A.I., Olikhovskaya, L.A., Melnichenko, T.V. et al. (2008) Solid-phase reactions in heating of multilayer Al/Ti foils produced by electron beam deposition method. Advances in Electrometallurgy, 2, 19-26.
10. Paton, B.E., Ishchenko, A.Ya., Ustinov, A.I. (2008) Application of nanotechnology of permanent joining of advanced light-weight metallic materials for aerospace engineering. The Paton Welding J., 12, 2-8.
Suggested Citation
A.I. USTINOV, Yu.V. FALCHENKO, A.Ya. ISHCHENKO, G.K. KHARCHENKO, T.V. MELNICHENKO and A.N. MURAVEJNIK (2009) PRODUCING PERMANENT JOINTS OF γ-TiAl BASED ALLOYS USING NANOLAYERED Ti/Al INTERLAYER BY VACUUM DIFFUSION WELDING.
The Paton Welding J., 01, 12-15.