Effect of beam oscillation on the mechanical properties of fiber-laser-welded thin-plate X2CrTiNb18 ferritic stainless-steel joints

Effect of Post-Weld Heat Treatment on Microstructure and Hardness of Laser Beam Welded 17-4 PH Stainless Steel

“…The analyses conducted on the impact of the heat input during welding cover a number of different issues related to the shape of the joint, e.g., circumferential welds [ 16 ] or after repair [ 17 ], or joining thin or thick materials [ 18 , 19 , 20 ]. Hybrid processes [ 20 , 21 ], as well as a specific type of generated beam [ 22 , 23 , 24 , 25 ] are also gaining importance. A separate guess is the issue of the impact of the heat input into the material and post-weld heat treatment of both 17-4 PH steel and other stainless steels, e.g., austenitic [ 19 , 23 , 26 , 27 ], ferritic [ 24 ], duplex [ 28 ], or aluminum [ 29 , 30 ].…”

“…Hybrid processes [ 20 , 21 ], as well as a specific type of generated beam [ 22 , 23 , 24 , 25 ] are also gaining importance. A separate guess is the issue of the impact of the heat input into the material and post-weld heat treatment of both 17-4 PH steel and other stainless steels, e.g., austenitic [ 19 , 23 , 26 , 27 ], ferritic [ 24 ], duplex [ 28 ], or aluminum [ 29 , 30 ]. This indicates that despite the fact that construction materials are characterized by good weldability, the method and effect of the heating and cooling, as well as the possible subsequent heat treatment [ 31 ] are of key importance for mechanical, plastic, or operational properties [ 12 , 13 , 32 ].…”