The Paton Welding Journal, 2012, №04



2012 №04 (02)

2012 №04 (04)

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The Paton Welding Journal, 2012, #4, 12-14 pages  

VACUUM DIFFUSION WELDING OF g-TiAl INTERMETALLIC ALLOY TO 12Kh18N10T STEEL

G.K. KHARCHENKO, A.I. USTINOV, Yu.V. FALCHENKO, L.V. PETRUSHINETS, S.G. GRIGORENKO, V.A. KOSTIN and V.P. GURIENKO

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
A two-stage technology for vacuum diffusion welding of intermetallic alloy g-TiAl to 12Kh18N10T steel using interlayers has been developed. It is shown that application of a nanolayered interlayer of Ti-Al system from the side of intermetallic and nickel interlayer from the side of steel provides a uniform distribution of microhardness in the bond.
 
 
Keywords: vacuum diffusion welding, g-TiAl intermetallic alloy, 12Kh18N10T steel, nanolayered insert, joint zone, microstructure, microhardness
 
 
Received:                08.12.11
Published:               28.04.12
 
 
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