Computer Experiment on Deformation of Nanocrystals of the Chromium-Niobium System. Part 2. Mechanical Properties |
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Authors: | A P Shpak V V Ogorodnikov K W Maliszewski Yu A Kunitskii |
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Affiliation: | (1) Kurdyumov Institute of Physics of Metals, National Academy of Sciences of Ukraine, Kiev, Ukraine;(2) Frantsevich Institute of Problems in Materials Science, National Academy of Sciences of Ukraine, Kiev, Ukraine;(3) Technical Center, National Academy of Sciences of Ukraine, Kiev, Ukraine |
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Abstract: | Molecular-dynamic simulation of the process of stretching of chromium and niobium nanocrystals and chromium-niobium bicrystals was performed to a pair-potential approximation. The authors obtained and analyzed the dependences of the potential energy, the number of pair interactions, work of deformation, stress, reduction in the cross-sectional area, and Poisson s ratio on the strain with various orientations of nanocrystals with respect to the tensile force. They calculated the characteristics of elasticity, yielding, and strength of nanocrystals.__________Translated from Problemy Prochnosti, No. 2, pp. 5 – 18, March – April, 2005 |
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Keywords: | computer simulation molecular dynamics interatomic potential nanocrystal chromium niobium bicrystal tension elongation stress strain Poisson s ratio" target="_blank">gif" alt="rsquo" align="BASELINE" BORDER="0">s ratio elasticity yielding strength |
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