Superaustenitic stainless steels have shown superior crevice corrosion resistance in comparison to other stainless steel alloys. They are optimized for use in critical environments in a number of applications. One of these alloys, UNS N08367 has been considered for evaluation.
The resistance to crevice corrosion of UNS N08367 welds made by laser, gas tungsten arc (with and without flux) and friction stir welding were compared and evaluated. The study was performed in flowing, ambient temperature natural seawater. The resistance to crevice corrosion was evaluated on frequency of initiation and depth of propagation.