Effect of the surface preparation techniques on the EBSD analysis of a friction stir welded AA1100-B4C metal matrix composite

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DOIResolve DOI: http://doi.org/10.1016/j.matchar.2011.06.007
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TypeArticle
Journal titleMaterials Characterization
ISSN1044-5803
Volume62
Issue9
Pages865877; # of pages: 13
SubjectEBSD technique; Friction stir; Ion beam polishing; Metal matrix composites; Micro-structural characterization; Characterization; Crystal microstructure; Dendrites (metallography); Friction; Gas welding; Grain size and shape; Ion beams; Metallic matrix composites; Metallography; Polishing; Tribology; Welds; Friction stir welding
AbstractAluminum 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 B4C 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 4C composite. The EBSD technique has been successfully applied to characterize the grain structure in the AA1100-16 vol.% B4C 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. © 2011 Elsevier Inc.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21271770
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Record identifiere7235722-de08-4ffb-b1e1-359514576f6e
Record created2014-03-24
Record modified2016-05-09
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