In this study, post-weld friction stir processing (FSP) was applied to eliminate the grain coarsening disadvantages encountered in heat-affected zone when joining AA5754 aluminum alloy with Gas Tungsten Arc Welding (GTAW). As a result of welding two passes and low heat input by selecting appropriate parameters, all seams were produced without macro defects. Despite these precautions, has occurr...

The effects of hydrogen and microstructure on the cold cracking susceptibility heat-affected zone (HAZ) carbon steel were investigated. Various plates with tensile strengths 400- 500-MPa grade employed, susceptibilities HAZs evaluated using implant tests. To investigate microstructure, test assemblies produced two types welding electrodes (low-hydrogen cellulose) different conditions (low high ...