Paper Title:
An OIM Analysis on the Deformation Mechanism in Hot Compressed AZ31 Magnesium Alloy
  Abstract

Orientation mapping based on EBSD technique was applied to analyze the rules of orientation evolution of grains in AZ31 magnesium alloy. Results show that not only under deformation strain rate of 1×10-2s-1, but under 4×10-4s-1(the superplastic deformation condition), grains in all samples with initial textures rotate gradually to near basal orientation ({0002} || compression plane) at different ways, and basal texture becomes stronger with increasing strain, which indicates plastic slip plays an important role during hot deformation. Otherwise, no evident non-basal pyramidal slip of as some studies mentioned was observed in the sample with the initial basal texture, and the basal orientation is kept unchanged during the deformation process, which suggests that basal slip is the uppermost plastic slip mechanism in this sample. In addition, the phenomenon of viscous laminar flow was observed in the sample with initial basal texture.

  Info
Periodical
Materials Science Forum (Volumes 488-489)
Edited by
W.Ke, E.H.Han, Y.F.Han, K.Kainer and A.A.Luo
Pages
633-636
DOI
10.4028/www.scientific.net/MSF.488-489.633
Citation
L. Meng, P. Yang, Z. Zhao, W. M. Mao, "An OIM Analysis on the Deformation Mechanism in Hot Compressed AZ31 Magnesium Alloy", Materials Science Forum, Vols. 488-489, pp. 633-636, 2005
Online since
July 2005
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: Ping Yang, Zude Zhao, Li Meng, Xueping Ren, Shao Dong Huang
Abstract:Depending on its initial texture and external strain condition differences in deformation mechanisms, kinetics of dynamic recrystallization...
185
Authors: Talal Al-Samman, Günter Gottstein
Abstract:The plastic behaviour of hexagonal metals such as magnesium is very anisotropic and substantially affected by crystallographic texture. In...
201
Authors: Ping Yang, Li Meng, Wei Min Mao, Leng Chen
Abstract:Orientation mapping based on EBSD technique was applied to reveal the orientations of new grains and their relationships to the surrounding...
639
Authors: Talal Al-Samman, Günter Gottstein
Abstract:Texture evolution and microstructure development of hot extruded pure magnesium and the magnesium alloy AZ31 deformed by plane strain...
3401
Authors: C. Dharmendra, K.P. Rao, Y.V.R.K. Prasad, N. Hort, K.U. Kainer
Chapter 1: Material Science and Engineering
Abstract:The influence of deformation conditions on the microstructure and texture evolution during hot compression of Mg-3Sn-2Ca (TX32) has been...
322