Liu Li
Abstract
The failure of the rail was analyzed by optical microscope,SEM and micro-hardness testing method.The result showed that it was caused by the high hardness martensite produced after the rail absorbed,the frictional heat which could be occurred when the rail severely straightened or hitted.
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The failure of the rail was analyzed by optical microscope,SEM and micro-hardness testing method.The result showed that it was caused by the high hardness martensite produced after the rail absorbed,the frictional heat which could be occurred when the rail severely straightened or hitted.
Key concepts: Materials science, Martensite, Fracture (geology), Optical microscope, Composite material, Forensic engineering, Metallurgy, Indentation hardness