Rolling contact fatigue in bearings: multiscale overview
Rolling contact fatigue in bearings: multiscale overview
For over a century, rolling contact fatigue in bearings has been recognised as a key feature limiting bearing life. The phenomenon is manifested through dark etching regions, 30 and 80° white etching bands as well as white etching areas, the latter often forming intricate defects commonly referred to as butterflies. Their presence depends on testing conditions, such as contact pressure, temperature, number of revolutions and steel cleanliness. Microstructural inspection demonstrates that precipitate shearing, dissolution, cell and nanocrystal formation as well as matrix/inclusion debonding may take place throughout bearing life. Such microstructural features have a negative effect on bearing hardness, strength, ductility and toughness, usually preceding failure. The present review shows how such phenomena are interconnected, highlighting the need for integral characterisation and modelling across the scales. This will aid in the conception of new heat treatments, steel grades and microstructures for enhanced rolling contact fatigue, leading to increased bearing life.
Bearing steels, Fatigue, Kinetics, Microstructure control, Multiscale modelling, Rolling contact fatigue
44-49
Kang, J.-H.
ac6e66ac-90d5-4744-8184-178ba67114a5
Hosseinkhani, B.
1983e016-2c4f-409f-84cb-4207784c210c
Rivera-Díaz-del-castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
2012
Kang, J.-H.
ac6e66ac-90d5-4744-8184-178ba67114a5
Hosseinkhani, B.
1983e016-2c4f-409f-84cb-4207784c210c
Rivera-Díaz-del-castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Kang, J.-H., Hosseinkhani, B. and Rivera-Díaz-del-castillo, P.E.J.
(2012)
Rolling contact fatigue in bearings: multiscale overview.
Materials Science and Technology (United Kingdom), 28 (1), .
(doi:10.1179/174328413X13758854832157).
Abstract
For over a century, rolling contact fatigue in bearings has been recognised as a key feature limiting bearing life. The phenomenon is manifested through dark etching regions, 30 and 80° white etching bands as well as white etching areas, the latter often forming intricate defects commonly referred to as butterflies. Their presence depends on testing conditions, such as contact pressure, temperature, number of revolutions and steel cleanliness. Microstructural inspection demonstrates that precipitate shearing, dissolution, cell and nanocrystal formation as well as matrix/inclusion debonding may take place throughout bearing life. Such microstructural features have a negative effect on bearing hardness, strength, ductility and toughness, usually preceding failure. The present review shows how such phenomena are interconnected, highlighting the need for integral characterisation and modelling across the scales. This will aid in the conception of new heat treatments, steel grades and microstructures for enhanced rolling contact fatigue, leading to increased bearing life.
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Published date: 2012
Additional Information:
A correction has been attached to this output located at https://doi.org/10.1179/0267083613Z.000000000542 and https://journals.sagepub.com/doi/full/10.1179/0267083613Z.000000000542
Keywords:
Bearing steels, Fatigue, Kinetics, Microstructure control, Multiscale modelling, Rolling contact fatigue
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Local EPrints ID: 491855
URI: http://eprints.soton.ac.uk/id/eprint/491855
ISSN: 0267-0836
PURE UUID: f5825f72-bd1a-481e-a54a-9fcf7b9b30e3
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Date deposited: 04 Jul 2024 17:19
Last modified: 11 Jul 2024 02:14
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Author:
J.-H. Kang
Author:
B. Hosseinkhani
Author:
P.E.J. Rivera-Díaz-del-castillo
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