|About this Abstract
|2023 TMS Annual Meeting & Exhibition
|Late News Poster Session
|N-31: The Effect of Sampling Direction and Mechanical Characterization of the Friction Stir Processed TIG Welded Joints
|Sipokazi Mabuwa, Velaphi Msomi
|On-Site Speaker (Planned)
The TIG-welded dissimilar joints were subjected to the friction stir processing (FSP) technique at room temperature. The specimens for the mentioned tests were extracted longitudinally and transverse to the welding direction. The results obtained from both TIG friction stir processed TIG + FSP joints, and the FSP longitudinally were compared to transverse joints. Regardless of the sampling direction the TIG + FSP joints exhibited greater results compared to TIG welded joints. The FSP longitudinal joints posed a minimal difference in grain size of the stir zone compared to the FSP transverse joints. The hardness of the joints showed a similar reaction. Comparing the mechanical tests of the said sampled joints, the tensile strength of the FSP longitudinal joints was 1.53 times the transverse joint one. The results obtained corresponded with the microstructural grain sizes of the joints. Regardless of the type of joint, the fracture surfaces showed a ductile phenomenon.
|Characterization, Joining, Aluminum