【摘要】 用金相显微镜、扫描电镜、能谱仪分析了钢轨断裂原因。分析认为钢轨在轧制过程中轨道底部区域收到严重碾压,产生了局部塑性变形和硬化,局部区域夹杂物集中,导致钢轨断裂。更多还原

【Abstract】 The fracture of a steel rail was analyzed by means of metallographic microscope, SEM and EDS. The results show that the bottom area of the steel rail is rolled severely during rolling process, and thus resulted in the local plastic deformation, hardening and concentration of inclusions in the bottom area, leading to the premature fracture of the steel rail.更多还原