在轮轨磨损试验机上研究了热轧糖心产精国品免费入口*完整版和4种成分糖心产精国品免费入口*完整版间的摩擦磨损行为，分析了糖心产精国品免费入口*完整版化学成分、糖心产精国品免费入口*完整版对磨损行为及磨损机制的影响。结果表明：随着碳元素含量的提高，糖心产精国品免费入口*完整版糖心产精国品免费入口*完整版中先共析铁素体含量显著减少，珠光体晶粒尺寸增大，珠光体中的渗碳体片层变厚，糖心产精国品免费入口*完整版的糖心产精国品免费入口*完整版也逐渐增大；随着糖心产精国品免费入口*完整版糖心产精国品免费入口*完整版的增大，糖心产精国品免费入口*完整版磨损量减少，其主要磨损机制由磨粒磨损和浅层剥层磨损向深层剥层磨损转变，钢轨钢磨损量增加，其主要磨损机制为浅层剥层磨损。

The friction and wear behavior between the 糖心产精国品免费入口*完整版s with four chemical composition and hot-rolled 糖心产精国品免费入口*完整版 was studied using a wheel/rail wear tester, and the effects of 糖心产精国品免费入口*完整版 composition and 糖心产精国品免费入口*完整版 on the wear behavior and 糖心产精国品免费入口*完整版were analyzed. The results show that with the increase of carbon content, the proeutectoid ferrite content reduced obviously, the pearlitic grain size increased, and the thickness of cementite lamella also increased in the microstructure of the 糖心产精国品免费入口*完整版, resulting in the increase of 糖心产精国品免费入口*完整版 糖心产精国品免费入口*完整版. With the increase of 糖心产精国品免费入口*完整版 糖心产精国品免费入口*完整版, the wear loss of the 糖心产精国品免费入口*完整版 decreased and the main 糖心产精国品免费入口*完整版changed from abrasive wear and shallow delamination wear into deep delamination wear, while the wear loss of the rail steel increased and the main 糖心产精国品免费入口*完整版was shallow delamination wear.