Oil & Gas (Page 7)

Qualifying very thick steel and new steels for use in construction, shipbuilding, pipes, and heavy equipment is not easy. Charpy tests are usually used, but the resulting data is not always consistent. Bill Mohr, EWI Principal Engineer for Structural Integrity, has conducted a study of crack specimens with splits. His work shows that Charpy and...

EWI recently completed a study which demonstrated the suitability of tandem/twin gas-metal arc welding for directed energy deposition (DED). Twin-wire pulsed technology offers a superior deposition rate, excellent feature fairness, and is tolerant to contact-tip-to-work variations. Because it is omni-directional with respect to travel direction and torchwire orientation, the process is compatible with robotic computer-aided...

The U.S Department of Energy (DOE) Office of Fossil Energy (FE) and the National Energy Technology Laboratory (NETL) recently selected projects to receive cost-shared R&D under the opportunity announcement (FOA) DE-FOA-0002192, Extreme Environment Materials for Power Generation. One of the projects selected is Robust Dissimilar Metal Friction Welded Spool for Enhanced Capability for Steam Power...