The mechanism of wear of Hadfield steel during loading according to the rolling pattern of the indenter with slippage

This article presents a study of the wear mechanism in Hadfield steel under rolling friction with simultaneous sliding. Quenched steel rollers served as the counterbody. The total number of frictional cycles was 1 million. The resulting surface was examined using scanning electron microscopy and X-ray microanalysis. It was established that the destruction of the Hadfield steel surface layer occurs in stages. Severe plastic deformation and accompanying mechanochemical processes, including oxidation and increased defect density, lead to material embrittlement. This results in a network of cracks oriented both perpendicular and parallel to the sliding direction. The primary wear mechanism is the delamination of flaky particles of deformed and oxidized material, approximately 1 μm thick. The data are in good agreement with the concept of secondary structure formation on the friction surface and contribute to understanding Hadfield steel's behavior under combined rolling and sliding.

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