Residual stress determination of friction stir welding of 1060 aluminum alloy using X-ray diffraction

Abstract

The residual stress distribution in friction stir welding of aluminum alloy 1060 was investigated by using X-ray diffraction. The heat-affected zone had linear sin² diagram, showing that the crystal is isotropic having small size, which agreed to the microstructure using SEM. Therefore the stress measurement can be carried out without using the oscillated- method. The heat-affected zone had smaller stress value in comparison to other area. In general, the residual stress of friction stir welding give small stress value in comparison to traditional welding methods.