The Paton Welding Journal, 2011, №11



2011 №11 (10)

2011 №11 (02)

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The Paton Welding Journal, 2011, #11, 2-7 pages  

COMPARATIVE EVALUATION OF SENSITIVITY OF WELDED JOINTS ON ALLOY INCONEL 690 TO HOT CRACKING

K.A. YUSHCHENKO, V.S. SAVCHENKO, N.O. CHERVYAKOV, A.V. ZVYAGINTSEVA, G.G. MONKO and V.A. PESTOV

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Sensitivity of metal of the welds made with wires Inconel^® 52 and Inconel^® 52MSS to hot cracking was evaluated. The machine testing methods (Varestraint-Test and PVR-Test), which provide for forced deformation of test specimens during welding, were used. The welds made with wire Inconel 52MSS were shown to be more resistant to ductility dip cracking, but several times more sensitive to solidification cracking. Evaluation of ductile properties of the weld metal using the «Ala-Too» machine showed that the Inconel 52MSS type weld metal had no ductility dip, whereas the Inconel 52 type weld metal was characterized by a pronounced decrease in the elongation values.
 
 
Keywords: TIG welding, nickel alloys, filler wire, weld metal, evaluation of crack resistance, ductility dip range, grain boundary, forced deformation
 
 
Received:                ??.??.??
Published:               28.11.11
 
 
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