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2009 №12 (01) 2009 №12 (03)

TPWJ, 2009, #12, 7-9 pages  
INVESTIGATION OF JOINTS OF TITANIUM ALUMINIDE WITH TITANIUM ALLOY VT8 PRODUCED BY DIFFUSION WELDING


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 12, 2009 (December)
Pages                      7-9
 
 
Authors
V.F. GORBAN, G.K. KHARCHENKO, Yu.V. FALCHENKO and L.V. PETRUSHINETS

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
The welded joints γ-TiAl (Ti-48 at.% Al) with alloy VT8 produced by diffusion welding in vacuum using nanolayered interlayers of Ti-Al system were investigated. The analysis of strength properties of a joint was carried out using microindention in the device «Micron-gamma» and also by mechanical shear tests. It was established that after diffusion welding in vacuum the initial nanolayered layer is transformed into intermetallic being in the state close to nanocrystalline one.
 
 
Keywords: diffusion welding, titanium aluminide, joint zone, nanolayered interlayer, microindention, hardness
 
 
Received:                23.04.09
Published:               28.12.09
 
 
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