Abstract In this study, the wear and damage behaviors of three heavy haul rail steels (including one hypereutectoid rail steel and two eutectoid rail steels) were investigated at room (around 20 °C) and low (−40 °C) temperatures using a rolling-sliding wear test machine. The results indicated that, compared with eutectoid steels, the hypereutectoid rail steel had a better wear resistance and a better rolling contact fatigue (RCF) resistance at the room temperature, and better wear resistance but worse RCF resistance at the low temperature. Compared with the room temperature, at the low temperature both the hypereutectoid and eutectoid rails had better wear resistance, the RCF resistance of eutectoid steels was improved but the RCF resistance of hypereutectoid rail was reduced. At the room temperature, the worn surfaces of both wheel and rail materials were dominated by surface cracks. On the contrary, at the low temperature, the worn surfaces of wheel and rail materials were dominated by third body layers (TBLs) and oxidized spots, respectively.

中文翻译：

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低温环境下过共析钢轨钢的磨损损伤行为研究

摘要 在这项研究中，使用轧制机研究了三种重载轨道钢（包括一种过共析轨道钢和两种共析轨道钢）在室温（约 20 °C）和低温（-40 °C）下的磨损和损坏行为。 -滑动磨损试验机。结果表明，与共析钢相比，过共析钢轨钢在室温下具有更好的耐磨性和更好的抗滚动接触疲劳（RCF）性能，在低温下具有更好的耐磨性但抗滚动接触疲劳性能较差。与室温相比，低温下过共析钢轨和共析钢轨均具有更好的耐磨性，共析钢的抗RCF性能提高，但过共析钢轨的抗RCF性能降低。在室温下，轮轨材料的磨损表面均以表面裂纹为主。相反，在低温下，轮轨材料的磨损表面分别以第三体层（TBLs）和氧化点为主。