Paper Title:
Inhomogeneous Deformation and Microstructural Evolution during the Hot Deformation of Al-4.98%Mg
  Abstract

Plane strain channel die compression (PSC) deformation has been carried out on Al-Mg alloys with Mg contents of 0.1 to 5 % at 350°C, and the deformed microstructures characterised by channelling contrast backscattered electron imaging (BSE), secondary electron imaging (SE) and high resolution electron backscatter diffraction (EBSD). Measurements of orientation spread and misorientation gradient obtained from EBSD maps have been used to quantify the microstructural inhomogeneity developing in the 4.98 % Mg alloy. The results are consistent with inhomogeneous plasticity with more deformation occurring in the grain boundary regions. In-situ FEGSEM hot deformation experiments on the Al-4.98 % Mg alloy have provided evidence of stress driven boundary migration at low strains.

  Info
Periodical
Materials Science Forum (Volumes 467-470)
Edited by
B. Bacroix, J.H. Driver, R. Le Gall, Cl. Maurice, R. Penelle, H. Réglé and L. Tabourot
Pages
117-122
DOI
10.4028/www.scientific.net/MSF.467-470.117
Citation
M.J. Ashton, J. F. Humphreys, "Inhomogeneous Deformation and Microstructural Evolution during the Hot Deformation of Al-4.98%Mg", Materials Science Forum, Vols. 467-470, pp. 117-122, 2004
Online since
October 2004
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Price
$32.00
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