Confirming subsurface initiation at non-metallic inclusions as one mechanism for white etching crack (WEC) formation
Confirming subsurface initiation at non-metallic inclusions as one mechanism for white etching crack (WEC) formation
White etching crack (WEC) formation beneath the contact surface in steel rolling element bearings causes a premature wear failure mode called white structure flaking (WSF). The drivers and initiation mechanisms are contested. Extensive work previously conducted by the authors showed strong evidence for one mechanism of WEC initiation being subsurface at inclusions. This paper conducts further work for final verification. Rolling contact fatigue testing of bearings on a FAG-FE8 test rig was conducted. Serial sectioning was used to map WECs in their entirety that formed under non-hydrogen charged conditions for the first time. Evidence from this paper and previous works by the authors confirms that subsurface initiation of WECs at non-metallic inclusions is at least one mechanism of WEC formation.
White etching crack (WEC), Rolling contact fatigue, Non-metallic inclusions, Hydrogen
87-97
Evans, M.-H.
5f015c47-3165-4f64-8561-7c047a9d2186
Richardson, A.D.
c801a111-ed18-458e-bce8-450cc499cc74
Wang, L.
c50767b1-7474-4094-9b06-4fe64e9fe362
Wood, R.J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Anderson, W.B.
b58ded5c-7166-494b-a9ca-eda1da57337b
July 2014
Evans, M.-H.
5f015c47-3165-4f64-8561-7c047a9d2186
Richardson, A.D.
c801a111-ed18-458e-bce8-450cc499cc74
Wang, L.
c50767b1-7474-4094-9b06-4fe64e9fe362
Wood, R.J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Anderson, W.B.
b58ded5c-7166-494b-a9ca-eda1da57337b
Evans, M.-H., Richardson, A.D., Wang, L., Wood, R.J.K. and Anderson, W.B.
(2014)
Confirming subsurface initiation at non-metallic inclusions as one mechanism for white etching crack (WEC) formation.
Tribology International, 75, .
(doi:10.1016/j.triboint.2014.03.012).
Abstract
White etching crack (WEC) formation beneath the contact surface in steel rolling element bearings causes a premature wear failure mode called white structure flaking (WSF). The drivers and initiation mechanisms are contested. Extensive work previously conducted by the authors showed strong evidence for one mechanism of WEC initiation being subsurface at inclusions. This paper conducts further work for final verification. Rolling contact fatigue testing of bearings on a FAG-FE8 test rig was conducted. Serial sectioning was used to map WECs in their entirety that formed under non-hydrogen charged conditions for the first time. Evidence from this paper and previous works by the authors confirms that subsurface initiation of WECs at non-metallic inclusions is at least one mechanism of WEC formation.
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Accepted/In Press date: 2014
e-pub ahead of print date: 26 March 2014
Published date: July 2014
Keywords:
White etching crack (WEC), Rolling contact fatigue, Non-metallic inclusions, Hydrogen
Organisations:
nCATS Group
Identifiers
Local EPrints ID: 363602
URI: http://eprints.soton.ac.uk/id/eprint/363602
ISSN: 0301-679X
PURE UUID: 044e55f6-c534-4496-89f6-114faaf967c9
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Date deposited: 27 Mar 2014 14:59
Last modified: 15 Mar 2024 03:12
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Author:
M.-H. Evans
Author:
A.D. Richardson
Author:
W.B. Anderson
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