Railway Castings, as vital load-bearing factors in railway systems, have their interior microstructure straight identifying the general performance and repair existence. Metallographic Evaluation, by revealing the microstructure traits of materials, delivers a direct foundation for the quality evaluation of track castings. 1.Technological methods of metallographic Assessment 1.one Met... https://www.scoop.it/topic/okok0972/p/4168349816/2025/10/10/rail-grinding