Many utilities around the world have been discovering abnormal or aberrant P91 base and weld metal microstructures in their plants, leading to, or with a potential to lead to, early cracking and ...

At-a-Glance: Structural integrity in pipeline welding is achieved by rigorous WPS/PQR control, heat-input and hydrogen management, precise fit-up, environmental controls, qualified welders, 100% ...

Rajeev Ranjan in his thesis investigates the influence of low-frequency vibration-assisted welding on the mechanical properties and microstructure of shielded metal arc welded mild steel plates.