Inline measurements of texture and recrystallization on aluminum alloys

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Proceedings titleProceedings of the Materials Science and Technology 2005 Conference
ConferenceMaterials Science and Technology 2005 Conference and Exhibition, September 25-28 2005, Pittsburgh Pennsylvania
Pages310; # of pages: 8
AbstractThe recrystallization of hot-rolled aluminum strips was monitored inline after inline annealing at Commonwealth Aluminum Corporation (CAC) using-laser ultrasonics. The non-contact measurement is based on sensing the ratio of the compressional to the shear sound velocity in the strip thickness direction. This ratio is insensitive to strip thickness variations and varies with crytallographic texture and temperature. Therefore, recrystallization is sensed as a change of texture, from a rolling to an annealing texture. A pyrometer is used to decouple temperature and texture effects on the velocity ratio. The measurements were made on two alloys: AA5754 and AA5052. The capabilities and limitations of the sensor are discussed.
Publication date
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NPARC number21273109
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Record identifier8f5ed252-a691-44cc-b657-77d3d941a478
Record created2014-12-15
Record modified2016-05-09
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