Evaluation of high-temperature ductility in weld metal study of reheat cracking in metal active-gas welding with flux-cored wire stainless steel weld metal (2nd report)

摘要

The previous paper{sup}1 has shown that the cracking initiated in 308 weld metal during MAG welding with flux-cored wire (FCAW) is reheat cracking originating during the welding residual stress relaxation process. Such stress relaxation is generally caused by creep deformation, and the creep deformation behavior is therefore regarded as being closely related to the sensitivity of the cracking which occurs during the stress relaxation process, such as reheat cracking.