| 2001 №01 (05) | 2001 №01 (07) |
The Paton Welding Journal, 2001, #1, 33-37 pages
Pressure welding of intermetallic alloy γ-TiAl
A.N. Yushtin, V.N. Zamkov, V.K. Sabokar, P.N. Chvertko, I.K. Petrichenko
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Pressure welding of intermetallic alloy &gama;-TiAl with and without interlayers was studied. It is shown that interlayers of aluminium and titanium fail to provide joints with properties close to those of the base metal. The technology is suggested for welding without an interlayer by heating generated by the electric current flow and plastic deformation at a rate of up to 2 mm/s. Metal of the welded joints made by this technology has strength equal to that of the base metal.
Keywords: pressure welding, intermetallic alloy, interlayer, lamellar structure, &gama;-phase, α2-phase
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