Abstract��Welding thermal cycle of S32003 stainless steel with different welding energy input was simulated on thermo-mechanical simulator Gleeble-3800 to investigate the microstructure and impact toughness of the heat affected zone. The results indicated that with the increasing of welding energy input the ferrite content decreased from 88.7% to 58.7%�� the dual phases microstructure was getting coarser and the impact toughness firstly increased and then decreased in the welding heat affected zone. The impact toughness gradually decreased as the testing temperature decreasing and the low-temperature impact toughness dropped dramatically when energy input increasing.
��Ԫΰ. ������˫����S32003������Ӱ������֯������[J]. �й������ڿ���, 2015, 33(5): 18-21.
JIA Yuan-wei. Microstructure and impact toughness of welding heat affected zone in S32003 lean duplex stainless steel. Chinese Journal of Iron and Steel, 2015, 33(5): 18-21.
2015, Vol. 33 
