激光-电弧复合焊接下高氮钢的焊接接头力学性能

摘要

采用激光-电弧复合焊接方法，获得材质为Cr18Mn18N的高氮钢板材的焊接接头。然后，对该焊接接头分别进行拉伸、硬度和弯曲等力学性能试验。结果表明，焊接接头的硬度和强度均高于母材，且焊接接头的弯曲试验满足ISO5173标准。%Laser-arc hybrid welding method to obtain material for Cr18Mn18N of high nitrogen steel plate welded joints, then stretching the welded joints, hardness and bending and other mechanical properties, respectively. The results showed that the hardness and strength of welded joints were higher than the base metal, and the bending test of welded joints meet ISO 5173 standards.