根据赫兹接触理论,在实验室条件下采用JD-1型轮轨模拟试验机进行滚动模拟试验模拟现场轮轨相互摩擦的过程,对相同条件下四种成分车轮钢的耐磨性及疲劳特性进行了研究.结果表明:车轮材料的碳含量越高,其硬度越高,相同条件下磨损量越小,磨痕表面附近的塑性变形层越薄,抗磨损性能越好;高含碳量材料中的裂纹扩展较深,疲劳损伤严重,低碳含量材料的磨损量大,磨痕表面附近的塑性变形明显,由于部分刚萌生的微裂纹被磨去,疲劳损伤较轻.
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