Comparative Analysis of Microstructure and Properties of Duplex Stainless Steel Welded Joints under Different Welding Processes

The performances of S31803 duplex stainless steel welded joint under submerged arc welding process and gas tungsten arc welding were compared, and the microstructure of the weld joints was analyzed. The reason of differences in mechanical properties and microstructure was expounded, which can provide reference for the process research and development.