Paper Title:
New Grain Interaction Models for Deformation Texture Simulations
  Abstract

Two relatively simple schemes are described for the interactions of grain deformations during large plastic deformations with the aim of evaluating their influence on texture development. The stress transfer model basically assumes that there is some degree of stress transfer across the boundaries proportional to the boundary area. The reduced stress incompatibility model minimizes the stress incompatibilities between each grain and their surrounding grains These models assume 3D topological schemes using evolving truncated octahedra for the spatial distributions of the grains. They are applied to the cases of hot rolled and cross forged Al alloys. Both give quite similar predictions for texture development which are moderate improvements on the Taylor models, confirming that the incorporation of grain interaction effects can be useful for texture modeling without major modifications. Moreover, they can yield interesting results for local orientation effects and their influence on orientation stability; an example of cube grains hot rolled in different crystallographic surroundings is also treated.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
3371-3376
DOI
10.4028/www.scientific.net/MSF.539-543.3371
Citation
R. Quey, S. Ringeval, D. Piot, J. H. Driver, "New Grain Interaction Models for Deformation Texture Simulations", Materials Science Forum, Vols. 539-543, pp. 3371-3376, 2007
Online since
March 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Tomotsugu Shimokawa, Toshiyasu Kinari, Sukenori Shintaku
Abstract:The interactions between edge dislocations and the grain boundary have been studied by using quasicontinuum simulations. With an increase in...
973
Authors: Dorothée Dorner, Yoshitaka Adachi, Kaneaki Tsuzaki
Abstract:Compression tests were performed on Fe-3%Si specimens with few grains. The deformation microstructure and microtexture were investigated by...
873
Authors: Tae Wook Heo, Saswata Bhattacharyya, Long Qing Chen
Abstract:A phase-field model is described for predicting the diffusional phase transformation process in elastically inhomogeneous polycrystals. The...
1084
Authors: T. James Marrow, David Gonzalez, Mohsin Aswad, Joao Quinta Da Fonseca, Philip J. Withers
Abstract:A 3D model for intergranular thermal stresses in coarse polycrystalline alumina has been derived using Diffraction Contrast Tomography....
560
Authors: Anand K. Kanjarla, Irene J. Beyerlein, Ricardo A. Lebensohn, Carlos Tomé
Chapter 2: Deformation
Abstract:Texture evolution in plastically deformed HCP metals is strongly influenced by the nucleation and growth of deformation twins and twin...
265