Abstract
Change in residual stress in the worked layer of type 304 autenitic stainless steel due to tensile deformation was measured by the X-ray diffraction residual stress measuring technique. The compressive residual stresses introduced by end-mill, side surface of end-mill and grinder were easily changed into tensile stresses when the plate specimens were subjected to tensile stress greater than the yield stress of the solid solution heat treated material. The residual stresses after the tensile deformation depend on the initial residual stresses and the degree of working. The residual stress change behavior can be interpreted when the surface worked material is regarded as a composite made of the solid solution heat treated material and the work-hardened material.
