| 2011 №03 (11) | 2011 №03 (02) |
The Paton Welding Journal, 2011, #3, 2-6 pages
DIFFUSION BONDING OF γ-TiAl BASE ALLOY IN VACUUM BY USING NANOLAYERED INTERLAYERS
G.K. KHARCHENKO, A.I. USTINOV, Yu.V. FALCHENKO, A.N. MURAVEJNIK, T.V. MELNICHENKO and L.V. PETRUSHINETS
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
Abstract
The effect of nanolayered interlayers Ti/Al, Ni/Ti and Ni/Al on structure of the diffusion bonds made in vacuum on γ-TiAl base alloy was studied. It is shown that when using the nanolayered interlayers of a composition differing from that of the base alloy it is necessary to conduct homogenising annealing to lower the degree of chemical heterogeneity in the bonding zone.
Keywords: diffusion bonding in vacuum, intermetallic titanium-aluminium alloy based on γ-TiAl, nanolayered interlayer, homogenising annealing, joint, heterogeneity, structure, microhardness
Received: ??.??.??
Published: 28.03.11
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