ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,364, issued on Feb. 3, was assigned to Weir Minerals Australia Ltd. (Australia).

"Tough and corrosion resistant white cast irons" was invented by Xinhu Tang (Artarmon, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "An end-use casting of a high chromium white iron, i.e. a casting that has been heat-treated, includes a ferrous matrix and at least two different chromium carbides dispersed in the matrix, with at least one of the chromium carbides including a transformation product of an as-cast chromium carbide."

The patent was filed on Dec. 4, 2018, under Application No. 16/770,018.

*For further information, including images, charts and tabl...