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Title: Effect of the surface preparation techniques on the EBSD analysis of a friction stir welded AA1100-B{sub 4}C metal matrix composite

Abstract

Aluminum based metal matrix composites (MMCs) have been used in various automobile, aerospace and military industries. Yet characterization of the microstructure in these materials remains a challenge. In the present work, the grain structure in the matrix of B{sub 4}C particulate reinforced MMCs and their friction stir welds is characterized by using optical metallography and the electron backscatter diffraction (EBSD) technique. Optical metallography can partially reveal the grain structure in the matrix of AA1100-16 vol.% B{sub 4}C composite. The EBSD technique has been successfully applied to characterize the grain structure in the AA1100-16 vol.% B{sub 4}C friction stir welds, which provides a powerful tool to follow the microstructural evolution of MMC materials during friction stir welding (FSW). Both mechanical polishing and ion beam polishing are used for the EBSD sample preparation. The effect of the sample preparation on the EBSD data acquisition quality is studied. Some typical examples, such as the identification of grains and subgrains, grain size distribution, deformation fields and the texture components are given. - Highlights: {yields} EBSD has been used to characterize the grain structure of Al-B{sub 4}C MMCs. {yields} Mechanical and ion beam polishing are compared for EBSD sample preparation of MMCs. {yields} EBSD showsmore » great advantages over optical microscopy for microtexture analysis of MMCs.« less

Authors:
 [1];  [2]; ;  [3];  [1]
  1. University of Quebec at Chicoutimi, Chicoutimi (QC), G7H 2B1 (Canada)
  2. (QC), G7H 8C3 (Canada)
  3. Aluminium Technology Centre, National Research Council Canada, Chicoutimi (QC), G7H 8C3 (Canada)
Publication Date:
OSTI Identifier:
22066393
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 62; Journal Issue: 9; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM BASE ALLOYS; BACKSCATTERING; BORON CARBIDES; COMPOSITE MATERIALS; DEFORMATION; ELECTRON DIFFRACTION; FRICTION; GRAIN SIZE; ION BEAMS; MATRIX MATERIALS; MECHANICAL POLISHING; METALLOGRAPHY; TEXTURE; WELDED JOINTS; WELDING

Citation Formats

Guo, J., E-mail: junfeng.guo@cnrc-nrc.gc.ca, Aluminium Technology Centre, National Research Council Canada, Chicoutimi, Amira, S., Gougeon, P., and Chen, X.-G. Effect of the surface preparation techniques on the EBSD analysis of a friction stir welded AA1100-B{sub 4}C metal matrix composite. United States: N. p., 2011. Web. doi:10.1016/J.MATCHAR.2011.06.007.
Guo, J., E-mail: junfeng.guo@cnrc-nrc.gc.ca, Aluminium Technology Centre, National Research Council Canada, Chicoutimi, Amira, S., Gougeon, P., & Chen, X.-G. Effect of the surface preparation techniques on the EBSD analysis of a friction stir welded AA1100-B{sub 4}C metal matrix composite. United States. doi:10.1016/J.MATCHAR.2011.06.007.
Guo, J., E-mail: junfeng.guo@cnrc-nrc.gc.ca, Aluminium Technology Centre, National Research Council Canada, Chicoutimi, Amira, S., Gougeon, P., and Chen, X.-G. Thu . "Effect of the surface preparation techniques on the EBSD analysis of a friction stir welded AA1100-B{sub 4}C metal matrix composite". United States. doi:10.1016/J.MATCHAR.2011.06.007.
@article{osti_22066393,
title = {Effect of the surface preparation techniques on the EBSD analysis of a friction stir welded AA1100-B{sub 4}C metal matrix composite},
author = {Guo, J., E-mail: junfeng.guo@cnrc-nrc.gc.ca and Aluminium Technology Centre, National Research Council Canada, Chicoutimi and Amira, S. and Gougeon, P. and Chen, X.-G.},
abstractNote = {Aluminum based metal matrix composites (MMCs) have been used in various automobile, aerospace and military industries. Yet characterization of the microstructure in these materials remains a challenge. In the present work, the grain structure in the matrix of B{sub 4}C particulate reinforced MMCs and their friction stir welds is characterized by using optical metallography and the electron backscatter diffraction (EBSD) technique. Optical metallography can partially reveal the grain structure in the matrix of AA1100-16 vol.% B{sub 4}C composite. The EBSD technique has been successfully applied to characterize the grain structure in the AA1100-16 vol.% B{sub 4}C friction stir welds, which provides a powerful tool to follow the microstructural evolution of MMC materials during friction stir welding (FSW). Both mechanical polishing and ion beam polishing are used for the EBSD sample preparation. The effect of the sample preparation on the EBSD data acquisition quality is studied. Some typical examples, such as the identification of grains and subgrains, grain size distribution, deformation fields and the texture components are given. - Highlights: {yields} EBSD has been used to characterize the grain structure of Al-B{sub 4}C MMCs. {yields} Mechanical and ion beam polishing are compared for EBSD sample preparation of MMCs. {yields} EBSD shows great advantages over optical microscopy for microtexture analysis of MMCs.},
doi = {10.1016/J.MATCHAR.2011.06.007},
journal = {Materials Characterization},
issn = {1044-5803},
number = 9,
volume = 62,
place = {United States},
year = {2011},
month = {9}
}