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

Alankar Alankar; David Field

doi:10.4028/www.scientific.net/MSF.702-703.196

Paper Titles

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

Crystal Plasticity Predictions of Forward-Reverse Simple Shear Flow Stress
p.204

Some Comments on Lattice Rotation in Aspect of Brass-Copper Texture Transition
p.212

The Brass-Type Texture – How close Are we to Understand it?
p.216

HomeMaterials Science ForumMaterials Science Forum Vols. 702-703Modeling of Deformation Microstructure - Strain...

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

Abstract:

In this work microstructure evolution in a columnar polycrystal of pure aluminum is studied using a microstructure sensitive crystal plasticity finite element model (CPFEM). In the model, based upon the kinematics of crystal deformation and dislocation interaction laws, dislocation generation and annihilation are modeled. Dislocation densities evolve in the form of closed loops and are tracked as state variables, leading to spatially inhomogeneous dislocation densities that show patterning in the dislocation structures. The hardening law is based on the strength of junctions between dislocations on specific slip systems. The CPFEM model is able to show the anisotropic hardening behavior of aluminum single crystals. The measures of accumulated plastic strain in the experiment and the simulation are compared with varying degrees of success.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 702-703)

Pages:

196-199

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.702-703.196

Citation:

Cite this paper

Online since:

December 2011

Authors:

Alankar Alankar, David Field

Keywords:

Crystal Plasticity, Crystallographic Texture, Dislocation, Micro-Structure Evolution

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] R. Prasannavenkatesan, B.Q. Li, D.P. Field, H. Weiland, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 36A (2005) 241-256.

Google Scholar

[2] D. Raabe, M. Sachtleber, Z. Zhao, F. Roters, S. Zaefferer, Acta Materialia 49 (2001) 3433-3441.

DOI: 10.1016/s1359-6454(01)00242-7

Google Scholar

[3] Z. Zhao, M. Ramesh, D. Raabe, A.M. Cuitiño, R. Radovitzky, International Journal of Plasticity 24 (2008) 2278-2297.

DOI: 10.1016/j.ijplas.2008.01.002

Google Scholar

[4] D. Field, A. Alankar, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 42 (2010) 676-683.

Google Scholar

[5] A. Alankar, I.N. Mastorakos, D.P. Field, Acta Materialia 57 (2009) 5936-5946.

Google Scholar

[6] M. Sachtleber, Z. Zhao, D. Raabe, Materials Science and Engineering A336 (2002) 81–87.

Google Scholar

[7] A. Arsenlis, D.M. Parks, Journal of the Mechanics and Physics of Solids 50 (2002) 1979-2009.

Google Scholar

[8] P. Franciosi, M. Berveiller, A. Zaoui, Acta Metallurgica 28 (1980) 273-283.

DOI: 10.1016/0001-6160(80)90162-5

Google Scholar

[9] W.F.J. Hosford, R.L. Fleischer, W.A. Backofen, Acta Metallurgica 8 (1960) 187-199.

Google Scholar

[10] S. Dumoulin, L. Tabourot, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 219 (2005) 1159-1167.

Google Scholar