Railway Castings, as essential load-bearing components in railway systems, have their interior microstructure instantly determining the performance and repair lifestyle. Metallographic Assessment, by revealing the microstructure features of resources, offers a immediate basis for the quality evaluation of track castings. one.Technical methods of metallographic Assessment 1.one Metallo... https://friendstrs.com/post/166385_with-the-development-of-big-data-the-internet-of-things-and-artificial-intellige.html