ALEXANDRIA, Va., April 2 -- United States Patent no. 12,263,542, issued on April 1, was assigned to BWXT Nuclear Operations Group Inc. (Lynchburg, Va.).
"Metal carbide/nitride precipitation control in fusion welding" was invented by Frank A. Argentine (Copley, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "Properties and performance of weld material between metals in a weldment is controlled by modifying one or more of the nitrogen content and the carbon content to produce carbide (e.g. MC-type), nitride and/or complex carbide/nitride (e.g. MX-type) type precipitates. Fusion welding includes (i) adjusting shield gas composition to increase nitrogen/carbon gas and nitride/carbide species, (ii) adjusting ...