Aspects concerning the microhardness evolution of aluminium ALSI7 welded by MIG and TIG welding technologies
Abstract
Abstract. In all welded assemblies, the joining area must meet the mechanical and functional requirements imposed on the assembly. High importance is placed on the hardness profile across the weld cross-section to determine the mechanical properties of the welded assembly. This study highlights the variation in hardness measured along the cross-section of a welded area in TIG- and MIG-welded AlSi7 joints. The results reveal aspects of grain orientation and suggest that the material may crack outside the weld zone.
Fields of Study & Subjects
Welding Techniques and Residual Stresses
Advanced Welding Techniques Analysis
Aluminum Alloy Microstructure Properties
Publication details
- Journal / source
- Materials research proceedings
- Volume
- 61
- Pages
- 28–36
- Publication date
- 1 January 2026