Abstract
Abstract In this work, the carbide dissolution and precipitation of M50 bearing steel were investigated as a function of cold rolling reduction. It is observed that the prior cold rolling not only enhances the dissolution of primary carbides, but also contributes to the carbide precipitation. Additionally, the influence of prior cold rolling on the dry wear behaviors of M50 bearing steel was studied, finding that the friction coefficient as well as wear rate decreases with the increasing cold rolling reduction. This result could be attributed to the formation of stable self-lubricating film within the subsurface layer for the specimens with cold rolling.
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