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Title: Polycrystal Simulations of Texture Evolution during Deformation Processing

Abstract

Some recent research on the hot deformation of aluminum alloys has indicated that at elevated temperatures, slip occurs on {110}<110> systems in addition to the usual {111}<110> systems active at lower temperatures. The effect of these additional slip systems on the texture evolution of aluminum single and polycrystals is studied using finite element simulations. The crystals are deformed in plane strain compression, and the constitutive response is modeled using crystal plasticity to track the reorientation of the crystals. By discretizing each crystal with a large number of elements, the non-uniform deformations due to local inhomogeneities and interactions with neighboring crystals are modeled. The resulting textures and microstructures are examined with regard to effect of including the additional systems, initial orientation of the single crystals, and stability of the cube orientation.

Authors:
; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Researc
OSTI Identifier:
1285
Report Number(s):
ORNL/CP-98361
B&R KC0201050; ON: DE00001285
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Conference
Resource Relation:
Conference: Hot Deformation of Aluminum Alloys, Rosemont, IL, 10/11/1998-10/15/1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Aluminium Alloys; Computerized Simulation; Deformation; Finite Element Method; Polycrystals; Slip; aluminium alloys; computerized simulation; deformation; finite element method; polycrystals; slip

Citation Formats

Radhakrishnan, B, Sarma, G, and Zacharia, T. Polycrystal Simulations of Texture Evolution during Deformation Processing. United States: N. p., 1998. Web.
Radhakrishnan, B, Sarma, G, & Zacharia, T. Polycrystal Simulations of Texture Evolution during Deformation Processing. United States.
Radhakrishnan, B, Sarma, G, and Zacharia, T. 1998. "Polycrystal Simulations of Texture Evolution during Deformation Processing". United States. https://www.osti.gov/servlets/purl/1285.
@article{osti_1285,
title = {Polycrystal Simulations of Texture Evolution during Deformation Processing},
author = {Radhakrishnan, B and Sarma, G and Zacharia, T},
abstractNote = {Some recent research on the hot deformation of aluminum alloys has indicated that at elevated temperatures, slip occurs on {110}<110> systems in addition to the usual {111}<110> systems active at lower temperatures. The effect of these additional slip systems on the texture evolution of aluminum single and polycrystals is studied using finite element simulations. The crystals are deformed in plane strain compression, and the constitutive response is modeled using crystal plasticity to track the reorientation of the crystals. By discretizing each crystal with a large number of elements, the non-uniform deformations due to local inhomogeneities and interactions with neighboring crystals are modeled. The resulting textures and microstructures are examined with regard to effect of including the additional systems, initial orientation of the single crystals, and stability of the cube orientation.},
doi = {},
url = {https://www.osti.gov/biblio/1285}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {5}
}

Conference:
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