Railway Castings, as vital load-bearing parts in railway devices, have their inner microstructure right identifying the functionality and service everyday living. Metallographic Investigation, by revealing the microstructure attributes of supplies, presents a direct foundation for the quality evaluation of track castings. one.Technical methods of metallographic analysis 1.one Metallog... https://ekcochat.com/post/805501_with-the-development-of-big-data-the-internet-of-things-and-artificial-intellige.html