One of important reasons is that the generation of brittle martensite due to brake sliding of wheels on rails leads to tread damage and its creep.
一个主要原因是车轮在钢轨上由于制动滑动产生的脆性马氏体所导致的踏面热损伤和蠕变。
2
Flaw of the railway vehicle wheels, especially the crack of the wheel tread, is the most potential trouble for the accident.
轨道车辆车轮中的缺陷，特别是车轮踏面裂纹是引发事故的巨大隐患。
3
Sliding will result in the damage on the wheel tread, and cause vibration and noise as well. Therefore, the wheels should be often turned, and the service life is shortened.