Railway Castings, as essential load-bearing parts in railway units, have their interior microstructure right pinpointing the performance and repair daily life. Metallographic analysis, by revealing the microstructure properties of supplies, offers a immediate foundation for the quality evaluation of track castings. 1.Technological methods of metallographic Assessment 1.1 Metallographi... https://d6united.mn.co/posts/92001248?utm_source=manual