Study on structure and properties of 316L medium thick stainless steel MAG welded joint
This article used ER316L solid wire to perform Melt Active Gas arc welding(MAG)on 20 mm thick 316L stainless steel,and prepared 316L stainless steel welded joint through low current multi-layer and multi-pass welding.The research results showd that austenite+10％ferrite constitute the steady-state structure of the weld,heat-affected zone was single-phase austenite,and there was no obvious coarse austenite grain.The 316L stainless steel welded joint had good strength and toughness,and the joint strength was higher than that of the 316L base metal.The bending position of the joint was free of pores and cracks.
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