Deformation and Fracture of Metallic Nanowires

Mohamed Mahmud Aish; Mikhail D. Starostenkov

doi:10.4028/www.scientific.net/SSP.258.277

Paper Titles

Hydrogen-Induced Ductility Loss of Austenitic Stainless Steels for Slow Strain Rate Tensile Testing in High-Pressure Hydrogen Gas
p.259

Intrinsic Behaviour of Mode II and Mode III Long Fatigue Cracks in Zirconium and the Ti-6Al-4V Alloy
p.265

Grain Size Effect on Low Cycle Fatigue Behavior of High Strength Structural Materials
p.269

Crack Initiation in Austenitic Stainless Steel Sanicro 25 Subjected to Thermomechanical Fatigue
p.273

Deformation and Fracture of Metallic Nanowires
p.277

Method of Threshold Stress Determination for a Local Approach to Cleavage Fracture
p.281

Micromechanism of Thermally Induced Breaking of One-Dimensional Nanocrystals
p.286

Numerical Determination of Fatigue Threshold from CTOD
p.290

Crystal Plasticity Simulations of Haynes 230, an Analysis of Single Crystal and Polycrystalline Experiments
p.294

HomeSolid State PhenomenaSolid State Phenomena Vol. 258Deformation and Fracture of Metallic Nanowires

Deformation and Fracture of Metallic Nanowires

Abstract:

A many-body interatomic potential for metallic nanowires within the second-moment approximation of the tight-binding model (the Cleri-Rosato potential) was employed to carry out three dimensional molecular dynamics simulations. Molecular dynamics simulation results for metallic nanowires at various temperature are presented. The stress–time and stress length curves for nanowires are simulated. The breaking and yield stress of nanowires are dependent on the Volume and temperature. The necking, Plastic deformation, slipping domain, twins, clusters, microspores and break-up phenomena of nanowire are demonstrated. Stress decreases with increasing nanowire volume and temperature. The final breaking position occurs at the central part of the nanowire when it is short, as the nanowire length increases the breaking position gradually shifts to the ends.

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Periodical:

Solid State Phenomena (Volume 258)

Pages:

277-280

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.258.277

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Online since:

December 2016

Authors:

Mohamed Mahmud Aish*, Mikhail D. Starostenkov

Keywords:

Cleri-Rosato Potential, Metallic Nanowires, Molecular Dynamics (MD) Simulation, Necking, Plastic Deformation, Slipping Domain, Tight-Binding

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