Railway Castings, as key load-bearing factors in railway units, have their inside microstructure specifically analyzing the effectiveness and service life. Metallographic Assessment, by revealing the microstructure attributes of components, provides a immediate foundation for the quality evaluation of track castings. one.Technical methods of metallographic Assessment 1.1 Metallographi... https://vherso.com/post/568829_with-the-development-of-big-data-the-internet-of-things-and-artificial-intellige.html