Duy Hiển Nguyễn

Interlayer ultrasonic impact treatment–induced recrystallization and grain transformation in multi‑pass welded structural steel

Abstract This study evaluates two ultrasonic impact treatment (UIT) strategies for flux-cored arc welded high-strength structural steel: top-surface peening after welding and interlayer peening between successive weld passes. Top-surface UIT increased the surface hardness by more...