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Metallography, Microstructure, and Analysis
Published in: Metallography, Microstructure, and Analysis 3/2016

01-06-2016 | Technical Article

On Rotation Contour Contrast in Hot-Compressed Magnesium Alloys in a Scanning Electron Microscope

Authors: Shirin Kaboli, Raynald Gauvin

Published in: Metallography, Microstructure, and Analysis | Issue 3/2016

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Abstract

Two types of electron channeling contrast were observed in backscattered electron micrographs of deformed Mg–0.3Al–0.2Ca (wt%) alloy after the uniaxial hot-compression tests in a scanning electron microscope (SEM). The effects of SEM operation conditions namely, stage tilt and electron beam energy on each type of contrast were investigated. The electron backscattered diffraction crystallographic orientation mapping was used to map the local crystal orientation across the grains. The observed contrast was described as rotation contour contrast (RCC) and found to have crystallographic origin. The appearance of RCC was attributed to the local rotation of the crystal during the deformation of the grain.
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Metadata
Title
On Rotation Contour Contrast in Hot-Compressed Magnesium Alloys in a Scanning Electron Microscope
Authors
Shirin Kaboli
Raynald Gauvin
Publication date
01-06-2016
Publisher
Springer US
Published in
Metallography, Microstructure, and Analysis / Issue 3/2016
Print ISSN: 2192-9262
Electronic ISSN: 2192-9270
DOI
https://doi.org/10.1007/s13632-016-0275-z

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