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White Etching Structures in Annealed 52100 Bearing Steel Arising from High-Pressure Torsion Tests.

Wilches Pena, L.V., Wang, L., Mellor, B.G. and Huang, Y., 2021. White Etching Structures in Annealed 52100 Bearing Steel Arising from High-Pressure Torsion Tests. Tribology International, 107187. (In Press)

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DOI: 10.1016/j.triboint.2021.107187

Abstract

White Etching Areas observed in failed rolling bearings have been associated with the presence of Severe Plastic Deformation conditions, which can be achieved by High-Pressure Torsion tests; thus, this technique was selected to produce White Etching Structures in annealed AISI 52100. Their origin arises from two main phenomena: Firstly, the relative movement between anvil/samples creates instabilities and interruption to plastic flow close to the surface of the sample. Secondly, the presence of hard discontinuities such as carbide clusters and non-metallic inclusions interrupt plastic flow inside the samples. Both phenomena seem to promote carbide dissolution in the ferritic matrix and so could produce not only White Structures but also White Etching Areas.

Item Type:Article
ISSN:0301-679X
Uncontrolled Keywords:White Etching Areas; AISI 52100; High-Pressure Torsion
Group:Faculty of Science & Technology
ID Code:35802
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:20 Jul 2021 11:07
Last Modified:20 Jul 2021 11:07

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