Laser ultrasonics as a new research tool for the in-situ characterization of metallurgical processes

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ConferenceMaterials Science & Technology 2012, 7-11 October 2012, Pittsburgh, PA, USA
AbstractLaser ultrasonics is an emerging technology for monitoring a wide range of metallurgical processes and materials parameters in situ by non-contact measurements. We have purchased the first laser ultrasonic sensor system dedicated and tailored to the Gleeble thermo-mechanical simulator for the live analysis of microstructures evolution during processing of samples. Attenuation and velocity of the ultrasound wave were used to investigate grain growth, recrystallization and phase transformation kinetics in low alloyed steels. Measurements were validated with classical metallographic microstructure characterization techniques. Based on these investigations the accuracy, precision, limitations and further potential of this new sensor technology will be discussed.
Publication date
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedNo
NRC number54403
NPARC number19822352
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Record identifier596760c0-e324-4946-8e4d-dcdb0ee6d6e8
Record created2012-04-26
Record modified2016-05-09
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