ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,526, issued on May 27, was assigned to JFE STEEL Corp. (Tokyo).
"Method for evaluating delayed fracture of metal material" was invented by Naho Inoue (Tokyo) and Shinji Otsuka (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for evaluating the delayed fracture characteristics of a metal material. The method including placing a solution-retaining material impregnated with a solution containing a chloride and having a pH of 3.5 or more on a stress loading part of the metal material, and maintaining a state in which the solution-retaining material is held at a deliquescence humidity of the chloride to thereby corrode the stress loading pa...