Effect of Grain Size Distribution on the Local Mechanical Behavior of Nanocrystalline Materials

Ying Guang Liu; Jian Qiu Zhou

doi:10.4028/www.scientific.net/MSF.682.153

Paper Titles

Mechanical Property of Duplex Stainless Steel with Nanostructured Layer by Surface Mechanical Attrition Treatment
p.123

Microstructure and Mechanical Properties of a 1.6C (pct) Ultra-Fine Grained Ultra-High Carbon Steel
p.131

Constitutive Model for Large Plastic Deformation of Nanocrystalline Materials
p.139

Effect of Load Direction on Tensile Yield Properties in Mg-3Al-Zn Alloy
p.145

Effect of Grain Size Distribution on the Local Mechanical Behavior of Nanocrystalline Materials
p.153

Numerical and Experimental Investigation of Strain Inhomogeneity during Cyclic Channel Die Compression
p.159

Superelasticity and Shape Memory Behaviors of Ti-25 at. % Nb Alloy Processed by ECAP and Aging
p.167

Tensile Properties and Dislocation Strengthening of Commercial Pure Titanium Processed by Equal-Channel Angular Pressing at Liquid Nitrogen Temperature
p.171

Compression Superplasticity of Ultrahigh Carbon Steel in Electric Field
p.177

HomeMaterials Science ForumMaterials Science Forum Vol. 682Effect of Grain Size Distribution on the Local...

Effect of Grain Size Distribution on the Local Mechanical Behavior of Nanocrystalline Materials

Abstract:

A theoretical model based on self-consistent approximation is proposed to explore the effect of grain size distribution on the local mechanical response of nanocrystalline (nc) materials. The representative volume element (RVE) is composed of grains randomly distributed with a grain size distribution following a log-normal statistical function. The grain interior and grain boundary are taken as an integral object to sustain deformation mechanisms of grain-boundary sliding, grain-boundary diffusion and grain-interior plasticity. Local plastic strains and internal stresses, developing within the RVE, have been recorded and discussed.