Corrosion and Microstructure Evolution of Ultrasonic (UaFSW), Induction (i-FSW) and Laser Heating Assisted Macro and Micro (?FSW) Dissimilar Friction Stir Welding and Friction Stir Spot Welding (FSSW)

This study entails and details corrosion (galvanic, pitting, intergranular, stress corrosion cracking (SCC), erosion, fretting, crevice, corrosion fatigue, high temperature, cryogenic, biological (microbial)) and microstructure evolution of ultrasonic (UaFSW), induction (i-FSW) and laser heating assisted macro and micro (μFSW) dissimilar friction stir welding and friction stir spot welding (FSSW)