Railway Castings, as key load-bearing components in railway systems, have their interior microstructure instantly pinpointing the general performance and service life. Metallographic Assessment, by revealing the microstructure attributes of supplies, presents a direct foundation for the quality assessment of keep track of castings. 1.Technological methods of metallographic Investigati... https://www.bib.az/post/227917_in-curved-sections-or-areas-with-frequent-braking-the-surface-of-the-rail-will-d.html