Prediction of the Plastic Anisotropy of Rolled Sheets under a Combined Effect of Texture, Grain Shape and Grain Size

Laurent Delannay

doi:10.4028/www.scientific.net/MSF.702-703.182

Paper Titles

An Investigation of Microtexture Evolution in an AlMgSi Alloy Processed by High-Pressure Torsion
p.165

Texture Evolution of HPT-Processed Ni₅₀Mn₂₉Ga₂₁
p.169

Texture Evolution in ARB Processed Commercial Purity Aluminium
p.173

Texture Evolution of Armco Iron during Accumulative Roll Bonding Process
p.177

Prediction of the Plastic Anisotropy of Rolled Sheets under a Combined Effect of Texture, Grain Shape and Grain Size
p.182

On the Orientation of Cell Block Boundaries in the Grains of a Rolled F.C.C. Polycrystal
p.188

A Rate-Independent 'Stack' Model of a Polycrystalline Aggregate
p.192

Modeling of Deformation Microstructure - Strain Hardening and Crystallographic Reorientation of Crystallites in a Columnar Polycrystal
p.196

Microstructural Modeling of Banding in Single Crystals: 'Stack of Domains' Model
p.200

HomeMaterials Science ForumMaterials Science Forum Vols. 702-703Prediction of the Plastic Anisotropy of Rolled...

Prediction of the Plastic Anisotropy of Rolled Sheets under a Combined Effect of Texture, Grain Shape and Grain Size

Abstract:

The present study explores a way to improve predictions of the mechanical anisotropy of textured polycrystalline aggregates. The underlying hypothesis is that grain-shape-dependent backstresses developed during the elastic-plastic transition influence the selection of active slip systems inside individual grains. Recently, a model was developed and applied successfully to electro-deposited pure iron with a columnar grain structure \cite{Delannay2011}. In the present study, we first suggest another definition of the boundary separation distance experienced by individual slip systems. Then, the model is adapted from the case of spheroidal grains, considered initially, to the more general situation of ellipsoidal grains. A combined effect of grain size, grain shape and texture on plastic anisotropy at yielding is illustrated in case of a rolled IF steel sheet.