Abstract
The structure of the Hadfield steel (H13) surface layer forming under dry friction is examined. The deformation of the material under the friction surface is studied at a low slip velocity and a low pressure (much smaller than the yields stress of H13 steel). The phase composition and defect substructure on the friction surface are studied using scanning, optical, and diffraction electron microscopy methods. It is shown that a thin highly deformed nanocrystalline layer arises near the friction surface that transforms into a polycrystalline layer containing deformation twins and dislocations. The nanocrystalline structure and the presence of oxides in the surface layer and friction zone indicate a high temperature and high plastic strains responsible for the formation of the layer. It is suggested that the deformation of the material observed far from the surface is due to elastic wave generation at friction.
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Original Russian Text © A.V. Kolubaev, Yu.F. Ivanov, O.V. Sizova, E.A. Kolubaev, E.A. Aleshina, V.E. Gromov, 2008, published in Zhurnal Tekhnicheskoĭ Fiziki, 2008, Vol. 78, No. 2, pp. 63–70.
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Kolubaev, A.V., Ivanov, Y.F., Sizova, O.V. et al. Effect of elastic excitations on the surface structure of hadfield steel under friction. Tech. Phys. 53, 204–210 (2008). https://doi.org/10.1134/S1063784208020096
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DOI: https://doi.org/10.1134/S1063784208020096