Wear and Damage Mechanism of Wheel-Rail Materials Based on Contact Zone Energy Dissipation
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摘要: 为了建立轮轨磨损与损伤实验的统一标准，在目前实验方法研究轮轨磨损与损伤机制的基础上，提出了基于接触斑能量耗散轮轨磨损与损伤机制的分析方法. 针对轮轨磨损与损伤实验缺乏统一标准的现状，对不同实验方法获得的磨损与损伤结果进行对比分析；通过对不同实验结果的对比分析，提出了基于接触斑能量耗散轮轨磨损与损伤机制的分析方法，并分析了不同轮轨材料与实验方法的单位面积轮轨接触斑耗散能-磨损率曲线的变化规律. 研究结果表明：根据轮轨材料的单位面积轮轨接触斑耗散能-磨损率变化曲线规律及轮轨损伤特征，可将轮轨磨损划分为3个分区：轻微磨损、严重磨损、灾难性磨损，单位面积轮轨接触斑耗散能-磨损率曲线在实际应用中可预测轮轨磨损；轮轨接触斑耗散能准确地表征轮轨磨损率和损伤形式，可用于轮轨磨损与损伤数据的对比分析.Abstract: In order to establish a uniform standard for wheel-rail wear and damage experiments, an analytic technique for wheel-rail wear and damage is put forward on the wear and damage mechanisms. As there is currently no wheel-rail wear and damage experiment standard, the wear and damage results from various current experimental methods are comparatively analyzed. Using the results of this comparative analysis, an analysis method for wheel-rail wear and damage mechanisms based on contact spot energy dissipation is proposed. Furthermore, the change rule of the relationship between contact spot energy dissipation unit area and wear rate is discussed for different wheel-rail materials and experimental methods. The results show that, on the basis of the relationship between contact spot energy dissipation unit area and wear rate and the damage characteristics of wheel-rail materials, wheel-rail wear can be divided into three types: mild wear, severe wear, and disastrous wear. Furthermore, the curve between contact spot energy dissipation unit area and wear rate can be used to predict wheel-rail wear in practical application. The wear rate and type of damage of wheel-rail material are analyzed accurately by the wheel-rail contact spot dissipation energy, which as be used to the data comparative analysis of wheel-rail wear and damage.
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Key words:
- wheel-rail wear /
- damage mechanism /
- standard experimental method /
- energy dissipation
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图 2 日本轮轨滚动磨损试验装置示意
Figure 2. Schematic diagram of Japan wheel-rail rolling wear testing device
图 3 不同材料的磨损率结果对比
Figure 3. Comparisons of wear rate results under different material conditions
图 4 不同试验机钢轨Tγ/A-磨损率对比（U71Mn）
Figure 4. Comparisons of Tγ/Avs. wear rate of rail material (U71Mn) on different testing machines
图 6 不同磨损阶段下车轮试样损伤SEM照片
Figure 6. Scanning electron microscope (SEM) micrographs of damage on wheel roller at different wear stages.
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DONZELLA G, FACCOLI M, MAZZÙ A, et al. Progressive damage assessment in the near-surface layer of railway wheel-rail couple under cyclic contact[J]. Wear, 2011, 271: 408-416 WANG W J, GUO H M, DU X, et al. Investigation on the damage mechanism and prevention of heavy-haul railway rail[J]. Engineering Failure Analysis, 2013, 35: 206-218 刘启跃,张波,周仲荣,等. 滚动轮波形磨损实验研究[J]. 摩擦学学报,2003,23(2): 132-135LIU Qiyue, ZHANG Bo, ZHOU Zhongrong, et al. Experimental study on rolling wheel corrugation[J]. Tribology, 2003, 23(2): 132-135 邓铁松. 两种轴箱悬挂布置直线电机地铁车辆的轮轨磨耗及动力学性能对比[D]. 成都: 西南交通大学, 2014 大野薰. 增粘材料喷射装置(喷砂器)[J]. 国外内燃机车,2007(2): 11-14 JIN X S, ZHANG W H, ZENG J, et al. Adhesion experiment on a wheel-rail system and its numerical analysis[J]. Proceedings of the Institution of Mechanical Engineers,Part J:Journal of Engineering Tribology, 2004, 218(1): 293-303 ZHANG W H, CHEN J Z, WU X J, et al. Wheel/rail adhesion and analysis by using full scale roller rig[J]. Wear, 2002, 253: 82-88 KUMER S. 北美机车在撒砂和不撒砂情况下的轮轨磨损与粘着[J]. 国外内燃机车, 1987(10): 10-18 LIU Q Y, ZHANG B, ZHOU Z R. An experimental study of rail corrugation[J]. Wear, 2003, 255(7): 1121-1126 WANG W J, ZHONG W, LIU Q Y, et al. Investigation on rolling wear and fatigue properties of railway rail[J]. Proceedings of the Institution of Mechanical Engineers,Part J:Journal of Engineering Tribology, 2009, 223(7): 1033-1039 JIN Y, ISHIDA M, NAMURA A. Experimental simulation and prediction of wear of wheel flange and rail gauge corner[J]. Wear, 2011, 271(1/2): 259-267 FLETCHER D I, BEYNON J H. Development of a machine for closely controlled rolling contact fatigue and wear testing[J]. Journal of Testing and Evaluation, 2000, 28(4): 267-275 DING H H, FU Z K, WANG W J, et al. Investigation on the effect of rotational speed on rolling wear and damage behaviors of wheel/rail materials[J]. Wear, 2015, 330/331: 563-570 BOLTON P J, CLAYTON P. Rolling-sliding wear damage in rail and type steels[J]. Wear, 1984, 93(2): 145-165 LEWIS R, OLOFSSON U. Mapping rail wear regimes and transitions[J]. Wear, 2004, 257(7): 721-729 LEWIS R, DWYER-JOYCE R S. Wear mechanisms and transitions in railway wheel steels[J]. Proceedings of the Institution of Mechanical Engineers,Part J:Journal of Engineering Tribology, 2004, 218(6): 467-478 LEWIS R, DWYER-JOYCE R S, OLOFSSON U, et al. Mapping railway wheel material wear mechanisms and transitions[J]. Proceedings of the Institution of Mechanical Engineers,Part F:Journal of Rail and Rapid Transit, 2010, 224(3): 125-137 BRAGHIN F, LEWIS R, DWYER-JOYCE R S, et al. A mathematical model to predict railway wheel profile evolution due to wear[J]. Wear, 2006, 261(11): 1253-1264 POMBOA J, AMBRÓSIO J, PEREIRA M, et al. Development of a wear prediction tool for steel railway wheels using three alternative wear functions[J]. Wear, 2011, 271(1): 238-245 WANG W J, LEWIS R, YANG B, et al. Wear and damage transitions of wheel and rail materials under various contact conditions[J]. Wear, 2016, 362/363: 146-152 HARDWICK C, LEWIS R, EADIE D T. Wheel and rail wear understanding the effects of water and grease[J]. Wear, 2014, 314(1): 198-204 -
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