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Microtexture Studies of Extruded Aluminum Using Electron Backscatter Diffraction

Published online by Cambridge University Press:  02 July 2020

S. R. Claves ,
W. Z. Misiolek  and
D. B. Williams
S. R. Claves
Affiliation:
Institute for Metal Forming, Lehigh University, Bethlehem, PA18015, USA
W. Z. Misiolek
Affiliation:
Institute for Metal Forming, Lehigh University, Bethlehem, PA18015, USA
D. B. Williams
Affiliation:
Institute for Metal Forming, Lehigh University, Bethlehem, PA18015, USA
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Abstract

Electron backscatter diffraction (EBSD) is a powerful tool used for the characterization of deformed microstructures and has been successfully applied to determine the microtexture of specific regions of bulk samples. The work presented here is a continuation of previous analyses investigating the microstructural response of 6xxx aluminum extrudates to complex die designs. Specifically, the grain orientations across longitudinal welds produced from porthole dies is being studied.

Previous work examined the cross section of a sample that was extruded using a specially designed die that would position the weld in the center of the part. This specimen, shown in Figure 1, is a simple, solid, rectangular shape produced under controlled conditions. The other sample being studied, seen in Figure 2, was part of an actual extrusion run, conducted with typical industrial parameters. This sample is part of a complex shape that uses a porthole die to produce hollow sections.

Type
Diffraction Techniques in TEM and SEM
Information
Microscopy and Microanalysis , Volume 7 , Issue S2: Proceedings: Microscopy & Microanalysis 2001, Microscopy Society of America 59th Annual Meeting, Microbeam Analysis Society 35th Annual Meeting, Long Beach, California August 5-9, 2001 , August 2001 , pp. 374 - 375
Copyright
Copyright © Microscopy Society of America 2001

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References

1.Claves, S. R. et al., “Proc. 7th Int. Aluminum Extrusion Technology Seminar”, vol. 1 (2000) 225.Google Scholar
2.Chakkingal, U. and Misiolek, W. Z.. in Das, S., Ed., Automotive Alloys II, TMS (1998) 195.Google Scholar