Hydrogen Accelerated Classical Rolling Contact Fatigue and Evaluation of the Residual Stress Response

Abstract:

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The accelerating effect of absorbed hydrogen on subsurface rolling contact fatigue is studied by bearing rig testing under HF electric current passage. The additional chemical loading enhances dislocation mobility and microplasticity. Structural changes occur in a premature stage, as shown by comparative XRD residual stress analysis. Dark etching regions appear to be a precursor for phase transformation in regular white etching bands. Fatigue crack initiation is demonstrated.

Info:

Periodical:

Edited by:

Paolo Scardi and Cristy L. Azanza Ricardo

Pages:

249-254

DOI:

10.4028/www.scientific.net/MSF.681.249

Citation:

J. Gegner and W. Nierlich, "Hydrogen Accelerated Classical Rolling Contact Fatigue and Evaluation of the Residual Stress Response", Materials Science Forum, Vol. 681, pp. 249-254, 2011

Online since:

March 2011

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$35.00

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