车轮转速对列车车轮磨损性能的影响
Effect of Wheel Speed on Wear Properties of Train Wheel
摘 要
用JD-1型轮轨模拟试验机和赫兹模拟准则研究了车轮转速对车轮滚动磨损性能的影响;用SEM、EDS和硬度计等分析了车轮磨损表面形貌与硬度变化情况.结果表明:随车轮转速的增大,车轮磨损量呈现先减小后增大的趋势,滚动摩擦过程中致密氧化膜的形成与车轮磨损量的变化有直接的关系;随着转速的增大,车轮的磨损机制由磨粒磨损向疲劳和氧化磨损转变.
车轮转速
磨损量
氧化膜
rolling wear
wheel speed
wear volume
oxide film
Abstract
The effect of wheel speed on rolling wear behavior of wheel steel was investigated using JD-1 wheel/rail simulation tester with Hertz simulation criteria.The morphology and hardness changes of the worn surface of wheel were analyzed by means of SEM,EDS and hardness tester.The results indicate that the wear volume of wheel decreased firstly and then increased rapidly with the increase of wheel speed.The change of wear volume had a direct relation with the formation of compact oxidation film during rolling wear process.The wear mechanism would change from abrasive wear to fatigue wear and oxidation wear with the increase of wheel speed.
中图分类号 TH117.3
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(50875221);国家“975”计划资助项目(2007CB714702);四川省应用基础研究基金资助项目(2008JY0066)
收稿日期 2009/5/4
修改稿日期 2009/11/6
网络出版日期
作者单位点击查看
备注李自彬(1985-),男,四川自贡人,硕士研究生.
引用该论文: LI Zi-bin,GUO Jun,WANG Wen-jian,ZHONG Wen,LIU Qi-yue. Effect of Wheel Speed on Wear Properties of Train Wheel[J]. Materials for mechancial engineering, 2010, 34(6): 24～27
李自彬,郭俊,王文健,钟雯,刘启跃. 车轮转速对列车车轮磨损性能的影响[J]. 机械工程材料, 2010, 34(6): 24～27
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【4】水恒勇,张永权,杨才福.高速列车车轮用材料的开发动向[J].钢铁研究学报,2003,15(3):66-69.
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【14】郭俊,赵鑫,金学松,等.全制动工况下轮轨热-机耦合效应的分析[J].摩擦学学报,2006,26(5):489-493.
【15】QIANG Y H,GE S R,XUE Q J.Microstructure and tribological behaviour of nitrocarburizing-quenching duplex treated steel[J].Tribology International,1999,32(3):131-136.
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