Unveiling the nature of hydrogen embrittlement in bearing steels employing a new technique
Unveiling the nature of hydrogen embrittlement in bearing steels employing a new technique
Hydrogen-charged and non-charged 1C-1.5Cr steel has been subjected to mechanical testing. Rolling contact fatigue life is dramatically reduced in the presence of hydrogen, while hardness and impact toughness remain nearly unchanged. The controlled formation of cracks in hydrogen-rich samples is demonstrated to continuously release hydrogen, supporting the view that hydrogen-enhanced localized plasticity is the principal hydrogen embrittlement mechanism in bearing steels. A new technique to determine the nature of the hydrogen embrittlement process is proposed.
Fatigue, Hydrogen diffusion, Hydrogen embrittlement
467-470
Szost, B. A.
d6faf422-7d64-4772-84c5-848bb113837a
Rivera-Díaz-Del-Castillo, P. E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
April 2013
Szost, B. A.
d6faf422-7d64-4772-84c5-848bb113837a
Rivera-Díaz-Del-Castillo, P. E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Szost, B. A. and Rivera-Díaz-Del-Castillo, P. E.J.
(2013)
Unveiling the nature of hydrogen embrittlement in bearing steels employing a new technique.
Scripta Materialia, 68 (7), .
(doi:10.1016/j.scriptamat.2012.11.018).
Abstract
Hydrogen-charged and non-charged 1C-1.5Cr steel has been subjected to mechanical testing. Rolling contact fatigue life is dramatically reduced in the presence of hydrogen, while hardness and impact toughness remain nearly unchanged. The controlled formation of cracks in hydrogen-rich samples is demonstrated to continuously release hydrogen, supporting the view that hydrogen-enhanced localized plasticity is the principal hydrogen embrittlement mechanism in bearing steels. A new technique to determine the nature of the hydrogen embrittlement process is proposed.
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e-pub ahead of print date: 29 November 2012
Published date: April 2013
Keywords:
Fatigue, Hydrogen diffusion, Hydrogen embrittlement
Identifiers
Local EPrints ID: 492558
URI: http://eprints.soton.ac.uk/id/eprint/492558
ISSN: 1359-6462
PURE UUID: 285b5574-c196-4ec6-9bf7-9e1114b772c8
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Date deposited: 05 Aug 2024 16:42
Last modified: 06 Aug 2024 02:04
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Contributors
Author:
B. A. Szost
Author:
P. E.J. Rivera-Díaz-Del-Castillo
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