Third-generation advanced high-strength steels (3G-AHSS) are typically galvanized to prevent corrosion of the outer body structure. However, zinc coating on surface, combined with locally elevated temperatures generated during resistance spot welding (RSW) process, can provide prerequisites for liquid metal embrittlement (LME). This work uses two strategies control LME crack formation: current ...

To weaken the harm of Al–Si coating and increase strength welded joints, variable thicknesses Ni foil (Ni, an austenitic formation element) were added to lap laser welding Al–Si-coated 22MnB5 hot stamping steel/galvanized steel joints. The joints’ weld appearance, microstructure, mechanical properties explored. altered from X shape a Y with increased thickness foil. During welding, was melted d...