Railway Castings, as critical load-bearing factors in railway devices, have their inside microstructure instantly pinpointing the functionality and repair existence. Metallographic Assessment, by revealing the microstructure features of supplies, supplies a immediate foundation for the quality assessment of observe castings. one.Technological methods of metallographic Examination one.... https://www.mymeetbook.com/post/997344_rail-grinding-this-art-carried-out-amid-sparks-flying-quietly-safeguards-the-hea.html