Weldability of a 2205 duplex stainless steel using plasma arc welding

This paper reports the determination of optimum welding conditions (welding intensity and travel speed) for butt joints of 2205 duplex stainless steel sheets using plasma-arc welding (PAW). Minimum net energy input for proper operative and metallurgical weldabilities is studied using two different welding modes: the melt-in or conduction mode and the keyhole mode. The influence of the welding parameter for each mode on the dimensions and shape of the welds and on their ferrite contents is investigated.