Abstract
Low-cycle surface fatigue is still relatively poorly investigated, especially in the case of accumulation of surface fractures during nanocontact interactions between solids. A new technique of modeling fatigue during a short nanocontact interaction based on repeated dynamic nanoindenting is proposed. The results of investigation of model LiF crystals and industrial ZrO2 ceramics show that, at a small number of cycles N of about 20, the material is hardened under the indenter. As N increases, the hardening is replaced by a loss of strength reflected in the formation and growth of microcracks.
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Translated from Fizika Tverdogo Tela, Vol. 43, No. 10, 2001, pp. 1839–1844.
Original Russian Text Copyright © 2001 by Golovin, Ivolgin, Korenkov, Farber.
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Golovin, Y.I., Ivolgin, V.I., Korenkov, V.V. et al. The hardening and loss of strength of thin surface layers of LiF monocrystals and zirconium ceramics under conditions of cyclic nanoindenting. Phys. Solid State 43, 1917–1922 (2001). https://doi.org/10.1134/1.1410631
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DOI: https://doi.org/10.1134/1.1410631