IMECH-IR  > 非线性力学国家重点实验室
Statistical analysis on rolling contact fatigue in railroad axle bearing steel
Guo RB; Yang GX; Li ZY(李正阳); Liu ZM; Wei YJ(魏宇杰)
Source PublicationFATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
2019-03-01
Volume42Issue:3Pages:651-663
ISSN8756-758X
AbstractHigh-strength steels are widely used in high-performance bearings utilized in most mechanical systems. However, there has been little statistical analysis regarding the fatigue failure behaviour of the material, where surface peeling resulted from contact fatigue during rolling is a significant life-limiting mechanism. In this study, we examine the statistical behaviour of surface-crack nucleation, propagation, and peeling in a high-speed train axle bearing made of GCr15 steel by using a laboratory rolling-contact equipment. We reveal that cyclic rolling-contact leads to the formation of a hardness gradient in the outer ring of the bearing. The gradient layer is of several millimetres. The peeling rate could be as high as 28 mu m per million cycles when the contact pressure is close to that applied in real service. Peeling-induced cracking is dominantly transgranular. The incipient angle is about 23.2 degrees, and its depth could be hundreds of micrometres. The findings reported here could be employed to assess the lifetime of bearings made of GCr15 steel and possible other engineering metals.
Keywordbearing steel crack propagation rolling contact fatigue statistical analysis
DOI10.1111/ffe.12940
Indexed BySCI ; EI
Language英语
WOS IDWOS:000457483300005
WOS KeywordCRACK-GROWTH ; GRAIN-SIZE ; MICROSTRUCTURE ; INITIATION ; STRESS ; DEFORMATION ; PROPAGATION ; MECHANISM ; FRACTURE ; MODEL
WOS Research AreaEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS SubjectEngineering ; Materials Science
Funding OrganizationNational Key Research and Development Program of China [2016YFB1200501- 008, 2016YFB1200503-C-03] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22020200]
Classification二类/Q1
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78446
Collection非线性力学国家重点实验室
先进制造工艺力学重点实验室
Affiliation1.{Guo, Rubing、Yang, Guangxue、Liu, Zhiming、Wei, Yujie} Beijing Jiaotong Univ, Key Lab Vehicle Adv Mfg Measuring & Control Techn, Beijing, Peoples R China
2.{Li, Zhengyang、Wei, Yujie} Chinese Acad Sci, Inst Mech, LNM, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Guo RB,Yang GX,Li ZY,et al. Statistical analysis on rolling contact fatigue in railroad axle bearing steel[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2019,42(3):651-663.
APA Guo RB,Yang GX,李正阳,Liu ZM,&魏宇杰.(2019).Statistical analysis on rolling contact fatigue in railroad axle bearing steel.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,42(3),651-663.
MLA Guo RB,et al."Statistical analysis on rolling contact fatigue in railroad axle bearing steel".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES 42.3(2019):651-663.
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