Abstract
A theoretical model has been developed to investigate the effect of a special cooperative process between two main modes of stress-driven nano-grain growth, i.e., nano-grain rotation and shear-coupled migration of grain boundaries, on the emission of lattice dislocations from a semi-infinite crack in nanocrystalline materials. The results obtained show that the above-mentioned collaborative process is highly conducive to the process of dislocation emission, thus, rendering strong crack blunting in nanocrystalline materials.
Original language | English |
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Pages (from-to) | 218-220 |
Number of pages | 3 |
Journal | Materials Letters |
Volume | 137 |
DOIs | |
Publication status | Published - 15 Dec 2014 |