ALEXANDRIA, Va., May 12 -- United States Patent no. 12,625,125, issued on May 12, was assigned to JFE STEEL Corp. (Tokyo).
"Method of evaluating central segregation in steel" was invented by Tomoharu Ishida (Tokyo), Seiya Sugawara (Tokyo) and Kenji Tsuzumi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of evaluating central segregation in steel with excellent correlation with HIC susceptibility is provided. A method of evaluating central segregation in steel includes: taking a sample from a steel, the sample having a cross section including a central segregation area; measuring an area ratio of an inclusion containing a segregation metal element in a region to be measured including the centra...