Railway Castings, as critical load-bearing factors in railway units, have their inside microstructure specifically pinpointing the efficiency and repair lifetime. Metallographic Examination, by revealing the microstructure features of resources, offers a immediate foundation for the quality evaluation of track castings. one.Technical methods of metallographic Assessment 1.one Metallog... https://vherso.com/post/568829_with-the-development-of-big-data-the-internet-of-things-and-artificial-intellige.html