Paper Title:
Experimental and Numerical Investigation of Texture Development during Hot Rolling of Magnesium Alloy AZ31
  Abstract

Due to the deformation mechanisms and the typical basal texture rolled magnesium sheets show a significant asymmetry of flow stress in tension and compression. In order to avoid this undesired behavior it is necessary to achieve non-basal texture during rolling, or at least, to reduce the intensity of the basal texture component. The reduction of the anisotropy caused by the basal texture is very important for subsequent forming processes. This project aims at optimizing the hot rolling process with special consideration of texture effects. The development of the model is carried out in close cooperation with the experimental work on magnesium alloy AZ31 .The experimental results are required for the determination of model parameters and for the verification of the model. Deformation-induced texture is described by the visco-plastic self-consistent (VPSC) model of Lebensohn and Tomé. The combination of deformation and recrystallization texture models is applied to hot compression tests on AZ31, and it is found, that the model describes the observed texture and hardening/softening behavior well. In some cases rotation recrystallization occurs in AZ31 which appears to be a possibility to reduce the undesired basal rolling texture.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
3448-3453
DOI
10.4028/www.scientific.net/MSF.539-543.3448
Citation
C. Schmidt, R. Kawalla, T. Walde, H. Riedel, A. Prakash, C. Poizat, "Experimental and Numerical Investigation of Texture Development during Hot Rolling of Magnesium Alloy AZ31", Materials Science Forum, Vols. 539-543, pp. 3448-3453, 2007
Online since
March 2007
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Price
$32.00
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