Laser cladding of rail; the effects of depositing material on lower rail grades
Laser cladding of rail; the effects of depositing material on lower rail grades
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DOI：
10.1016/j.wear.2019.203045
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发表时间：
2019-11-15
期刊：
影响因子：
5
通讯作者：
Lewis, R.
中科院分区：
文献类型：
--
作者：
Lu, P.;Lewis, S. R.;Lewis, R.
本文提出了一项比较激光熔覆钢轨磨损性能的研究。马氏体不锈钢 (MSS) 沉积在两种基材上：欧洲标准级钢轨钢 R260 和较低等级钢轨钢 R200。双盘方法已用于模拟严密控制条件下轮轨的接触。尽管在较低等级的钢轨上进行熔覆会对熔覆层的硬度和耐磨性能产生影响（由于稀释），但使用这种方法评估的熔覆层的最终磨损性能仍然比单独的 R260 材料有很大改善。
This paper presents a study comparing the wear performance of laser clad rails. A grade of martensitic stainless steel (MSS) was deposited on two substrate materials: The European standard grade rail steel R260, and a lower grade rail steel R200. A twin-disc method has been used to simulate the contact of wheel and rail under closely controlled conditions. Although cladding on a lesser grade of rail has an effect on the hardness and wear performance of the clad layer (due to dilution), the resulting wear performance of the clad layer assessed using this approach is still vastly improved over R260 material alone.