The wear rate of hydrogenated specimens of high-nitrogen cold-worked manganese steels is five times larger than that of nonhydrogenated ones. In the absence of hydrogenation, the size of the wear products ranges from 25 to 40 μm at P = 400 N and from 40 to 100 μm at P = 500 N. For hydrogenated specimens, the size of the wear products is above 350 μm under a load of 250 N and ranges from 600 to 1000 μm at P = 400 N. The morphology of the wear products demonstrates an excellent microrelief, which indicates that fracture occurs by different mechanisms of fracture during the formation of a particle under friction conditions. On the products, we detected dimples in which, probably, particles containing σ-type intermetallics, carbides, and nitrides, which cause the initiation of cracks under both sliding friction and rolling friction, spalled.
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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 45, No. 4, pp. 93–98, July–August, 2009.
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Balyts’kyi, O.I., Kolesnikov, V.O. Investigation of wear products of high-nitrogen manganese steels. Mater Sci 45, 576–581 (2009). https://doi.org/10.1007/s11003-010-9216-1
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DOI: https://doi.org/10.1007/s11003-010-9216-1