Monitoring the annealing of an Al-Mg alloy by laser-ultrasonics

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Proceedings titleProceedings of the International Symposium on Enabling Technologies for Light Metals and Composite Materials and Their End-Products, including the McQueen Symposium
ConferenceLight Metals 2002, August 11-14 2002, Montreal QC, Canada
Pages161171; # of pages: 11
Subjectalloys; lasers; microstructure; nondestructive testing; ultrasonic waves
AbstractLaser-ultrasonics is a non-destructive and non-contact technique that can characterize many microstructural and elastic parameters of materials and is suitable for on-line applications. In this paper, samples of an Al-Mg alloy (AA5754) are annealed at various temperatures (300oC, 325oC and, 350oC) and their recrystallization kinetics is monitored in real time by laser-ultrasound. It is found that longitudinal velocity variations correlate well with the recrystallized fraction, as evaluated by metallography and mechanical testing on samples submitted to similar thermal cycles.
Publication date
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NPARC number21273117
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Record identifierc19bb0d7-43e5-4dc4-84cb-66911257821e
Record created2014-12-16
Record modified2016-05-09
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