4种车轮材料与U71Mn热轧钢轨匹配特性

刘吉华; 王文健; 刘启跃

doi:10.3969/j.issn.0258-2724.2015.06.022

4种车轮材料与U71Mn热轧钢轨匹配特性

doi: 10.3969/j.issn.0258-2724.2015.06.022

基金项目:

国家自然科学基金资助项目(51475393,U1134202)

详细信息

作者简介:
刘吉华(1988-),男,博士,研究方向为轮轨摩擦学,E-mail:liujihua2ok@126.com

通讯作者:
刘启跃(1964-),男,教授,博士,研究方向为轮轨摩擦学,E-mail:liuqy@home.swjtu.edu.cn

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出版历程
- 收稿日期: 2014-04-30
- 刊出日期: 2015-12-25

Matching Characteristics between Four Kinds of Wheel Steels and U71Mn Hot-Rolled Rail

摘要

摘要: 为研究车轮材料对轮轨匹配行为的影响,在MMS-2A型轮轨磨损试验机上模拟研究了U71Mn热轧钢轨和4种不同车轮材料的摩擦磨损行为.采用电子分析天平测量试样磨损量,采用SEM对试样进行微观分析.结果表明:随着车轮含碳量升高,车轮硬度升高,车轮的磨损量逐渐降低,而与之匹配的钢轨磨损量逐渐升高;轮轨试样的磨痕粗糙程度与磨损程度相关,磨损越严重,磨痕越粗糙;轮轨试样的硬度比决定轮轨试样的磨损机制,轮轨硬度比较低时,主要以磨粒磨损为主,磨损最严重,当轮轨硬度比继续升高,主要以疲劳磨损为主,磨损降低,当轮轨硬度比接近1.1时,轮轨氧化达到最严重,主要以氧化磨损为主.
- 硬度 /
- 磨痕 /
- 磨损机制 /
- 硬度比
Abstract: In order to investigate the effect of wheel materials on the matching behaviors between wheel and rail, the MMS-2A wear test machine was used to simulate the friction and wear behavior of the wheel/rail systems made of U71Mn hot-rolled rail and four kinds of wheel materials. The wear loss was measured by an electronic analytical balance and the microstructure of wheel/rail samples were analyzed by a scanning electron microscope. The results indicate that with the carbon content of wheels increasing, the wheel hardness increases and the wheel wear loss decreases, but the wear loss of the rail samples matching with the wheels increases gradually. The attrition rate of the wheel/rail samples is related to the roughness of the wear scars: the more serious the wear is, the rougher the wear scars are. In addition, the wear mechanism is determined by the hardness ratio of wheel to rail materials. When the hardness ratio is low, the wear process is dominated by a mechanism of abrasive wear, and the wear loss is the largest. With the increase of the hardness ratio, the main wear mechanism turns into a fatigue wear and the wear loss becomes less. When the hardness ratio approaches 1.1, more serious oxidation occurs to the wheel/rail samples, and oxidative wear will dominate the wear mechanism.
- hardness /
- wear scars /
- wear mechanism /
- hardness ratio

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参考文献(19)

金学松,刘启跃. 轮轨摩擦学[M]. 北京:中国铁道出版社,2004: 1-2.

HOU K, KALOUSEK J, LAMBA H. Thermal effect on adhesion in wheel/rail[C]//Proceeding of 5th International Conference on Cantact Mecharics and Wear of Wheel/Rail System. Tokyo:, 2000: 239-244.

金学松,张继业,温泽峰,等. 轮轨滚动接触疲劳现象分析[J]. 机械强度,2002,24(2): 250-257. JIN Xuesong, ZHANG Jiye, WEN Zefeng, et al. Overview of phenomena of rolling cantact fatigue of wheel/rail[J]. Journal of Mechanical Strength, 2002, 24(2): 250-257.

ROBERTS G, WARD R M, STRANGWOOD M. Use of misorientaion values to further understand deformation in rail steels[J]. Ironmaking Steelmaking, 2013, 40(2): 92-97.

STOCK R, EADIE D, OLDKNOW K. Rail grade slection and friction maganment: a combined approach for optimising rail-wheel contact[J]. Ironmaking Steelmaking, 2013, 40(2): 108-114.

钟雯,胡家杰,郭俊,等.钢轨材料对滚动接触疲劳影响及高速铁路选轨研究[J]. 机械工程学报,2010,46(21): 100-105. ZHONG Wen, HU Jiajie, GUO Jun, et al. Infulence of material on rail contact fatigue damage and research on high-speed rail selection[J]. Journal of Mechanical Engineering, 2010, 46(21): 100-105.

赵雪芹,王文健,钟雯,等. 钢轨滚动疲劳裂纹与磨损耦合关系研究[J]. 铁道学报,2009,31(2): 84-87. ZHAO Xueqin, WANG Wenjian, ZHONG Wen, et al. Studying on coupling relationship between fatigue crack and wear of rail[J]. Journal of China Railway Society, 2009, 31(2): 84-87.

蒋文娟. 钢轨材料对轮轨磨损及微观结构影响的研究[D]. 成都:西南交通大学,2012.

马腾,朱桂兰. 热处理钢轨的轮/轨匹配关系研究[J]. 物理测试,1999(5): 1-3. MA Teng, ZHU Guilan. Study on matching relatinship between rail and whee[J]. Physics Examination and Testing, 1999(5): 1-3.

陶杰,姚正军,薛峰. 材料科学基础[M]. 北京:化学工业出版社,2006: 240-249.

刘承军,刘宏亮,黄桂斌,等. 碳对稀土重轨钢组织和性能的研究[J]. 稀土,2008,29(1): 95-98. LIU Chengjun, LIU Hongliang, HUANG Guibing,et al. Effect of carbon on microstructure and properties of RE steel for heavy rail[J]. Chinese Rare Earth, 2008, 29(1): 95-98.

朱昌逑,江波,安涛,等. 铁路重载货车车轮新材料的研制[J]. 钢铁,2007,42(8): 56-59. ZHU Changqiu, JIANG Bo, AN Tao, et al. Research of a new steel for heavy duty wagon wheels[J]. Iron and Steel, 2007, 42(8): 56-59.

MI Guofa, LIU Yanlei, ZHANG Bin, et al. Wear properities of cast steel wheel material in rail truck[J]. Journal of Iron and Steel Research, International, 2009, 16(3): 73-77.

PETER P. High strength rail steels-the importance of material proterities in contact mechanics problems[J]. Wear, 2008, 265(9/10): 1373-1379.

蒋文娟,钟雯,张向龙,等. 不同轴重下钢轨硬度对轮轨磨损量的影响[J]. 机械工程材料,2011,35(6): 80-82. JIANG Wenjuan, ZHONG Wen, ZHANG Xianglong, et al. The effect of rail hardness on wear loss of wheel/rail system at different axle loads[J]. Materials for Mechanical Engineering, 2011, 35(6): 80-82.

张帆,周伟敏. 材料性能学[M]. 上海:上海交通大学出版社,2009: 175-176.

魏敏先. 严重工况下钢铁材料的氧化磨损及轻微-严重磨损转变[D]. 镇江:江苏大学,2011.

张永振. 材料干摩擦学[M]. 北京:科学出版社,2007: 88-89.

HOLM R. Electric contacts theory and application[M]. Berlin: Springer-Verlag, 1967: 101-105.

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