Qualification on Welding Technology of SAF2205 Duplex Stainless Steel
The microstructure and mechanical properties of welded joint of SAF2205 duplex stainless steel at different welding technology and interpass temperature were studied.The results show that qualified welding seam is obtained by GTAW and SMAW through the used welding parameters.The microstructure and phase ratio obtained by GTAW is superior to that by SMAW and the impact properties by GTAW are higher than that by SMAW.The austenitizing of metallographic microstructure is severe at continuous welding.