エレクトロ・スラグ溶接法による異種鋼材からなる層材の靭性について

概要

論文の詳細を見る
Three layers- and two layers-laminated plates were made by electro-slag welding. The effect of heat treatment, reduction in thickness by forging-rolling, and relative thickness of core steel weld metal were examined in relation to the notch toughness and static mechanical properties. These properties were compared with those of the rolled laminated plates which were previously reported. The results obtained were as follows : (1) In the case of mild steel-2% Nickel steel weld metal-mild steel laminated plate, the largest impact value was obtained by homogenizing annealing at 1100℃ followed by quenching and tempering. This value corresponded to that of the laminated plate which was made by rolling. (2) In the case of mild steel-Si-Mn steel weld metal-mild steel laminated plate, a refined microstructure accompanying a remarkable increase of impact value was obtained by the forging and rolling with a larger reduction in thickness than 80%. (3) The impact value of stainless steel weld metal-mild steel laminated plate increased with the increase of stainless steel thickness, as similar tendency as the laminated plate made by rolling.
社団法人溶接学会の論文
1973-09-25