Prediction of Work Hardening in Bearing Steels Undergoing Rolling Contact Loading with a Dislocation-Based Model
نویسندگان
چکیده
The work hardening behaviour of GCr15 bearing steel during rolling contact fatigue (RCF) is investigated. Ball-on-rod RCF tests and micro-indentation are performed to obtain various subsurface hardness profiles in rod specimens. It found that orthogonal shear stress responsible for under Hertzian the extent increase positively associated with level number cycles. A dislocation-based model established by combining Kocks–Mecking theory, plasticity equation Taylor relation. proposed capable predicting changes any given state modelling results compared against experimental results, good agreement obtained. This research also provides a methodology studying different types steels undergoing RCF, from experiment modelling.
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ژورنال
عنوان ژورنال: Metals
سال: 2022
ISSN: ['2075-4701']
DOI: https://doi.org/10.3390/met12040555