| Molecular Dynamics Simulation on Plastic Deformation of Metallic Nanowires (2007) | |||||||||||||||
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| We have studied the initial stage of plastic deformation behavior of metallic nanowire of pure nickel, by using molecular dynamics methods. In these simulations, we applied uniform strain along c-axis at strain rate of 0.5%/100ps, 0.5%/10ps and 0.1%/2ps. We have observed the formation of stacking faults by movement of a partial dislocation, and the development of stacking faults to deformation twins at initial down event of stress-strain curve. Since twinning is also seen in at the slowest strain rate in our simulations and direct observation of nanometer-sized gold by high resolution transmission microscopy at very slow strain rate by Kizuka (i) , the twinning seems to be a characteristic of deformation mechanism in metallic nanowires. | |||||||||||||||
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