Publisher： Trans Tech Publications
E-ISSN： 1662-9507|2016|368|11-14
ISSN： 1012-0386
Source： Defect and Diffusion Forum, Vol.2016, Iss.368, 2016-08, pp. : 11-14
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The operational degradation of surface layers due to a rolling contact process was simulated for Hadfield steel by a special testing rig. A specific limited state based on cumulative depletion of plasticity was achieved.Precise evaluation of the surface layer's mechanical parameters is necessary for a service life prediction. Very low depth of localized dislocation hardening process doesn ́t allow the standard mechanical testing. The comparative instrumented indentation tests using Vickers and cylindrical indenter were used for evaluation of defined stage of surface degradation process. The intensity and reach of deformation hardening are partially limiting for particular methodology. The yield stress of surface layers was estimated according to an analytical model of uniaxial vs. indentation plastic flow ratio.
Related content
Hydrogen-Assisted Rolling-Contact Fatigue of Wind Turbines Bearings
Key Engineering Materials, Vol. 2014, Iss. 627, 2015-01 ,pp. :
Access to resources
Recommend
Contact Calculation for Rolling Bearings in Quarter-Spaces
Key Engineering Materials, Vol. 2015, Iss. 642, 2015-05 ,pp. :
Metallic Contact of Atomized Aluminium Powder Compacts for Hot-Rolling in Air
By Suzuki Y.
Powder Metallurgy, Vol. 20, Iss. 2, 1977-01 ,pp. :