Preprints of the National Meeting of JWS
Preprints of the National Meeting of JWS
Session ID : 307
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Host: Japan Welding Society

Hot Cracking Susceptibility of Alloy 52 Filler Metals in Alloy 690 Multipass Welding
Kazuyoshi Saida, Yuki Nomoto, *Kousuke Bunda, Hiroyuki Ogiwara, Kazutoshi Nishimoto
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Keywords: Alloy 690, Alloy 52 filler metals, Hot cracking susceptibility, Microstructure, Tortuous grain boundary
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Abstract
Hot cracking susceptibility of commercial alloy 52 filler metals was evaluated by Varestraint test. Ductility-dip cracking susceptibility was decreased with an increase in tortuousness of grain boundary in the weld metal. The filler metal 52MSS was negligibly susceptible to ductility-dip cracking, while solidification/liquation cracking susceptibilities were heightened in the filler metal 52MSS.
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© 2011 by Japan Welding Society
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