Numerical Modeling of Dislocation-Grain Boundary Interaction and Continuum Mechanics Analyses for Mechanical Properties of Fine Grained Metals

Tetsuya Ohashi; Ryota Tsugawa; Tomotaka Ogasawara

doi:10.4028/www.scientific.net/MSF.584-586.1063

Paper Titles

A Triple-Scale Crystal Plasticity Simulation on Yield Behavior of Annealed FCC Fine-Grained Metals
p.1027

Formation of Multiply-Twinned Particles during Two-Nanoparticles Agglomeration: The Results of MD Simulation
p.1033

Long-Term Microhardness Evolution in Ti-Ni Shape Memory Alloys Processed by Severe Cold Rolling
p.1039

A Phase-Field Simulation of Nucleation from Subgrain and Grain Growth in Static Recrystallization
p.1045

Application of Strain Gradient Plasticity Modelling to High Pressure Torsion
p.1051

Multiscale Crystal Plasticity Simulation with Pseudo-Three-Dimensional Model on Ultrafine-Graining Based on Evolution of Dislocation Structures
p.1057

Numerical Modeling of Dislocation-Grain Boundary Interaction and Continuum Mechanics Analyses for Mechanical Properties of Fine Grained Metals
p.1063

Multiscale Modeling of SPD Processes for Grain Refinement
p.1069

Computer Simulation of Kinematics of Plastic Flow and the Deformed Condition of Metal at Processes Equal-Channel Angular Pressing
p.1077

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Numerical Modeling of Dislocation-Grain Boundary Interaction and Continuum Mechanics Analyses for Mechanical Properties of Fine Grained Metals

Abstract:

Macroscopic mechanical response of metal polycrystal with mean grain diameter of 0.2 to 5 microns are simulated by a strain gradient crystal plasticity software code which incorporates some phenomenological models for dislocation accumulation and annihilation, as well as dislocation-grain boundary interactions. Obtained results of macroscopic stress-strain relation show significant increase of yield stress and strain hardening ratio for fine grained specimens.