Oak Ridge National Laboratory materials scientists operate a welding robot inside a robotic welding cell. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy The U.S. Departments of Energy and Defense ...

In the five months since ExxonMobil’s Pegasus oil pipeline burst in Arkansas, two things have become clear. Flawed, 1940s-era welding techniques used when the Pegasus was built set the stage for the ...

The term ‘hydrogen induced cracking’ (HIC) refers to internal lesions resulting from material becoming trapped in budding hydrogen atoms. This can result in a loss of important mechanical properties ...

Steel’s weldability is primarily influenced by its carbon content. Additionally, the contribution of other elements, such as silicon (Si), nickel (Ni), vanadium (V), molybdenum (Mo), copper (Cu), ...

Fuel line cracks that have grounded the US space shuttle fleet since June will almost certainly be welded, allowing missions to resume by September, NASA shuttle program manager Ron Dittemore has ...