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Utilizing EBSD to validate and understand NDE techniques

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Essex, S. D., Potter, M. D. G., Vann, R. G. L. and Dixon, S. (2009) Utilizing EBSD to validate and understand NDE techniques. In: 35th Annual Review of Progress in Quantitative Nondestructive Evaluation, Univ Chicago, Chicago, IL, July 20-25, 2008. Published in: AIP Conference Proceedings, Vol.1096 pp. 1224-1231. ISBN 978-0-7354-0629-2. doi:10.1063/1.3114095 ISSN 0094-243X.

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Official URL: http://dx.doi.org/10.1063/1.3114095

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Abstract

Electron Backscatter Diffraction (EBSD) is a destructive, surface-specific technique that measures accurately crystallographic orientations within a scanning electron microscope (SEM). From this data we can infer elastic properties, calculate levels of stress and measure microstructural properties such as the size and aspect ratios of grains. The Electromagnetic Acoustic Transducer (EMAT) is a non-contact, ultrasonic transducer that is suitable for operation on electrically conducting materials such as Aluminium and Steel. This paper highlights some of the work carried out using EBSD as a technique to validate EMAT measurements on rolled sheet to determine microstructural properties such as gain size and aspect ratios via shear wave through-thickness attenuation, and other macroscopic properties like average crystallographic texture. Work is also presented on another application for EBSD, in that it can be used to confirm whether an NDE technique is in fact non-destructive. Here we look at the case of a Nd:Yag pulsed laser irradiating a sample, in the ablative/thermoelastic regime boundary.

Item Type: Conference Item (Paper)
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Faculty of Science, Engineering and Medicine > Science > Physics
Series Name: AIP Conference Proceedings
Journal or Publication Title: AIP Conference Proceedings
Publisher: American Institute of Physics
ISBN: 978-0-7354-0629-2
ISSN: 0094-243X
Editor: Thompson, DO and Chimenti, DE
Official Date: 2009
Dates:
DateEvent
2009Published
Volume: Vol.1096
Number of Pages: 8
Page Range: pp. 1224-1231
DOI: 10.1063/1.3114095
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Conference Paper Type: Paper
Title of Event: 35th Annual Review of Progress in Quantitative Nondestructive Evaluation
Type of Event: Conference
Location of Event: Univ Chicago, Chicago, IL
Date(s) of Event: July 20-25, 2008

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