Effect of wheel material characteristics on wear and fatigue property of wheel-rail

被引：0
作者：
Chen, Shui-You [1 ]
Liu, Ji-Hua [1 ]
Guo, Jun [1 ]
Wang, Wen-Jian [1 ]
Liu, Qi-Yue [1 ]
机构：
[1] Tribology Research Institute, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu
来源：
Mocaxue Xuebao/Tribology | 2015年 / 35卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Delamination; Fatigue crack; Hardness ratio; Plastic deformation; Wear;
D O I：
10.16078/j.tribology.2015.05.003
中图分类号：
学科分类号：
摘要：
The wear and fatigue damage characteristics between wheels of different materials and hot-rolled U75V rail steels were investigated by using a MMS-2A wheel/rail rolling wear testing apparatus. The results indicate that with the increasing carbon content of wheel materials, the proportions of pearlite in the microstructure increased and the interlamellar spacing of cementite decreased, resulting in the increasing of the surface hardness. With the increasing hardness ratio of wheel/rail steels, the thickness of plastic deformation layer on wheel samples decreased significantly, however, for the rail samples, the thickness increased firstly and then decreased. Also, with the increasing hardness ratio of wheel/ rail steels, the wear of wheel samples transformed from small flakes to large flakes. The wear mechanism of wheel samples transformed from mild delamination to deep delamination. The higher hardness of wheel samples, the shorter the length of fatigue crack. Additional effect of high hardness was the angle of the tip of crack propagation of rails increased, thus leading to the fatigue cracks propagating to the heart of rail steels. ©, 2015, Science Press. All right reserved.
引用
收藏
页码：531 / 537
页数：6
相关论文
共 11 条
  • [1] Jin X.S., Shen Z.Y., Rolling contact fatigue of wheel/rail and its advanced research progress, Journal of the China Railway Society, 23, 2, pp. 92-108, (2001)
  • [2] Wang B.K., Dong G.N., Liu Y.H., Et al., Shakedown analysis of rolling contact surface with short-wavelength corrugation, Tribology, 24, 1, pp. 70-73, (2004)
  • [3] Jin Y., Ishida M., Namura A., Experimental simulation and prediction of wear of wheel flange and rail gauge corner, Wear, 271, pp. 259-267, (2011)
  • [4] Khoddam S., Shamdani A.H., Mutton P., Et al., A new test to study the cyclic hardening behavior of a range of high strength rail materials, Wear, 313, pp. 43-52, (2014)
  • [5] Zheng-Yang L., Xu-Hui X., Ming-Jiang Y., Et al., Investigation on rolling sliding wear behavior of wheel steel by laser dispersed treatment, Wear, 314, pp. 236-240, (2014)
  • [6] Wang W.J., Liu Q.Y., Zhu M.H., Hardness matching behavior of wheel/rail materials, Tribology, 33, 1, pp. 65-69, (2013)
  • [7] Perez-Unzueta A.J., Beynon J.H., Microstructure and wear resistance of pearlitic rail steels, Wear, 162-164, pp. 173-182, (1993)
  • [8] Singh U., Popli A., Jain D., Et al., Influence of micro alloying on mechanical and metallurgical properties of wear resistant coach and wagon wheel steel, Journal of Materials Engineering and Performance, 12, 5, pp. 573-580, (2003)
  • [9] Zeng D.F., Lu L.T., Zhang Y.B., Et al., Rolling contact wear properties of matching of high-speed wheel/rail materials, Chinese Journal of Mechanical Engineering, 49, pp. 183-189, (2013)
  • [10] Wang W.J., Guo J., Liu Q.Y., Effect of contact stress on rolling friction and wear behavior of wheel-rail materials, Tribology, 31, 4, pp. 352-356, (2011)
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