Abstract
The main mechanisms of grain growth upon low-temperature recrystallization of pure nickel (99.98%) with structures of various types formed upon deformation in Bridgman anvils have been studied. A decrease in the amount of the stored energy of deformation at the stage of submicrocrystalline (SMC) structure has been revealed using the method of differential scanning calorimetry. The isothermal annealings with durations of up to 64 h made it possible to show that the low-temperature recrystallization in both the mixed and SMC structures is developed via the growth of separate centers that are formed during deformation. As a result, no homogeneous submicrograin structure is formed in nickel upon low-temperature recrystallization.
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Original Russian Text © Yu.G. Krasnoperova, L.M. Voronova, M.V. Degtyarev, T.I. Chashchukhina, N.N. Resnina, 2015, published in Fizika Metallov i Metallovedenie, 2015, Vol. 116, No. 1, pp. 83–90.
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Krasnoperova, Y.G., Voronova, L.M., Degtyarev, M.V. et al. Recrystallization of nickel upon heating below the temperature of thermoactivated nucleation. Phys. Metals Metallogr. 116, 79–86 (2015). https://doi.org/10.1134/S0031918X15010081
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DOI: https://doi.org/10.1134/S0031918X15010081