Evaluation of fracture toughness and residual stress in AISI 316L electron beam welds

Weld residual stress and fracture behavior of 316L electron beam weldments, which are particular interest in power generation industry, were investigated this work. Two butt-weld joints manufactured stainless steel plates 6 mm 25.4 thicknesses. Three complementary methods used to measure the three orthogonal components weld coupons, tests conducted on single edge notched bending specimens extracted from different regions welds parent metals. The measurements showed a maximum value 450 MPa longitudinal direction, while it was less than 150 other two directions, revealing that our material, with chosen parameters, stresses biaxial. resistance weldment material similar, microstructure differences being more significant measured stresses. study suggests weldments not susceptible failure due their high ductility ability relieve through gross plasticity. Electron welding may therefore be suggested as reliable manufacturing technology for safety critical components.