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Case study: The effect of running distance on the microstructure and properties of railroad axle bearings
Guo RB; Lei XQ(雷现奇); Zhang DD; Liu ZM; Wang X; Wei YJ(魏宇杰)
2018-01-15
发表期刊WEAR
卷号394页码:159-165
ISSN0043-1648
摘要As a key component, axle bearings play an important role in transmission systems. Motivated by the rapid growth of railway network and the significance of bearing safety, we report here how different operating duration may alter the macroscopic and microscopic mechanical property of high speed train axle bearing's outer ring made of GCr15 steel, a high-carbon chromium bearing steel known for its superb contact fatigue resistance, good dimensional stability and excellent corrosion resistance. We characterized the structural and mechanical properties of the load carrying zone at operating duration of new, 1.2 Mkm and 2.4 Mkm bearing. In contact to the as-received ones, the outer ring samples show clear grain refinement, exhibit inhomogeneous hardness distribution and show a decrease of about 42% for the tensile elongation after 2.4 Mkm operation.
关键词Bearing steel Fracture toughness Gradient structure Grain refinement
DOI10.1016/j.wear.2017.10.016
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000425372500017
关键词[WOS]ROLLING-CONTACT FATIGUE ; MECHANICAL-PROPERTIES ; LOW-CARBON ; SURFACE NANOCRYSTALLIZATION ; HIGH-STRENGTH ; STEEL ; WEAR ; OPTIMIZATION ; PLASTICITY ; PARTICLES
WOS研究方向Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS类目Engineering ; Materials Science
项目资助者Chinese Academy of Sciences [XDB22020200] ; National Key Research and Development Program of China [2016YFB1200403] ; Ministry of Railways Science and Technology Division of China [2013J008-C-01]
论文分区二类/Q1
力学所作者排名1
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77791
专题非线性力学国家重点实验室
作者单位1.Beijing Jiaotong Univ, Engn Res Ctr Struct Reliabil & Operat Measurement, MOE, Beijing 100044, Peoples R China
2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
3.Beijing Railway Bur, Beijing 100860, Peoples R China
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Guo RB,Lei XQ,Zhang DD,et al. Case study: The effect of running distance on the microstructure and properties of railroad axle bearings[J]. WEAR,2018,394:159-165.
APA Guo RB,雷现奇,Zhang DD,Liu ZM,Wang X,&魏宇杰.(2018).Case study: The effect of running distance on the microstructure and properties of railroad axle bearings.WEAR,394,159-165.
MLA Guo RB,et al."Case study: The effect of running distance on the microstructure and properties of railroad axle bearings".WEAR 394(2018):159-165.
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