利用滚动磨损试验机研究了激光相变硬化处理前后轮轨钢试样的磨损与损伤性能.结果表明:激光相变硬化处理主要得到马氏体组织,显著提高轮轨试样的表面硬度,钢轨试样和车轮试样分别提高43.06％、44.39％;轮轨试样经激光相变硬化处理后滚动摩擦系数与未处理试样相差不大,单一处理轮轨试样摩擦系数有所增大;轮轨试样经激光相变硬化处理能明显提高轮轨试样表面抗磨损和变形能力,车轮试样磨损率减少约44.02％,钢轨试样减少约13.6％,单一处理轮轨试样虽能降低处理试样的磨损,但显著加剧对摩副的磨损;激光相变硬化处理后,钢轨试样表现为轻微疲劳磨损,车轮试样则是粘着磨损与疲劳磨损共存,以疲劳磨损为主;重载工况下轮轨钢试样均激光相变硬化处理能有效改善材料抗磨损和损伤能力.
参考文献
| [1] | Wang Jianxi;Xu Yude;Lian Songliang;Wang Liying .Probabilistic prediction model for initiation of RCF cracks in heavy-haul railway[J].International Journal of Fatigue,2011(2):212-216. |
| [2] | Francisco C. Robles Hernandez;Nicholaos G. Demas;Dave D. Davis;Andreas A. Polycarpou;Luis Maal .Mechanical properties and wear performance of premium rail steels[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2007(1/6):766-772. |
| [3] | J. Sandstrom;A. Ekberg .Predicting crack growth and risks of rail breaks due to wheel flat impacts in heavy haul operations[J].Proceedings of the Institution of Mechanical Engineers, Part F. Journal of rail and rapid transit,2009(2):153-161. |
| [4] | 刘启跃;王夏秋;周仲荣 .钢轨表面波浪形磨损研究[J].摩擦学学报,1998,18(04):50-53. |
| [5] | 刘启跃,王文健.含碳量对车轮材料磨损影响的试验研究[J].润滑与密封,2005(05):11-13. |
| [6] | 王文健,郭俊,刘启跃.车轮钢的滚动剥离损伤[J].机械工程材料,2010(08):9-11,94. |
| [7] | R. Ordonez Olivares;C. I. Garcia;A. DeArdo;S. Kalay;F. C. Robles Hernandez .Advanced metallurgical alloy design and thermomechanical processing for rails steels for North American heavy haul use[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2011(1/2):364-373. |
| [8] | Stuart Grassie;Paul Nilsson;Kjell Bjurstrom;Anders Frick;Lars Goran Hansson .Alleviation of rolling contact fatigue on Sweden's heavy haul railway[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2002(1/2):42-53. |
| [9] | 刘启跃,王文健,周仲荣.高速与重载铁路钢轨损伤及预防技术差异研究[J].润滑与密封,2007(11):11-14,68. |
| [10] | 王文健,刘吉华,郭俊,刘启跃.激光淬火对重载轮轨磨损与损伤性能的影响[J].材料科学与工艺,2012(06):69-72,80. |
| [11] | 职亚楠,吕宽洲,梁二军,陈长清,赵栋,晁明举,张准胜.U74钢轨表面激光淬火工艺及其对耐磨性的影响[J].激光杂志,2002(04):55-57. |
| [12] | 陈德华,滕鲁湘,李光瑾,任颂赞,哈胜男,祖庆川,杨新山,王洪.渗碳淬硬层残余应力的分布特征[J].热处理,2011(02):65-71. |
| [13] | 万盛,韩彬,王勇,薛敏鹏.激光相变硬化-离子渗硫复合改性层的性能[J].金属热处理,2012(01):68-71. |
| [14] | 罗军,莫继良,蔡振兵,彭金方,朱旻昊.激光淬火层的转动微动磨损行为[J].材料热处理学报,2013(05):153-157. |
| [15] | 赵骏韦,陈宸,胡正飞,严益民,许玉德,周宇.U75V货运重轨服役损伤及裂纹扩展行为研究[J].上海金属,2011(01):13-17. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%