Determination of crystallographic texture in steel plates using laser-generated surface waves

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DOIResolve DOI: http://doi.org/10.1063/1.3582780
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TypeArticle
Proceedings titleReview of progress in quantitative nondestructive evaluation: Volume 30A; Volume 30B
Series titleAIP Conference Proceedings; no. 1335
ConferenceQNDE 2010 Annual Review of Progress in Quantitative Nondestructive Evaluation, July 18-23, 2010, San Diego, California, USA
ISBN978-0-7354-0888-3
Pages273280; # of pages: 8
SubjectCrystallographic texture; Hot rolled steel plate; Laser ultrasonics; Residual stress
AbstractA laser-ultrasonic approach based on the propagation of surface skimming longitudinal wave (P-wave) and Rayleigh wave (SAW) is investigated for the measurement of crystallographic texture in moderately thick steel plates. The angular dependence of the P-wave and SAW velocities presents different patterns, both of amplitude of a few % attributed to texture. Results obtained from fitting the angular profiles using relevant expressions for P-wave and SAW confirm that texture coefficients may accurately be measured by this approach. Moreover, the difference of the P wave and SAW profiles is shown to be very robust against small path length changes or other detrimental effects such as surface roughness. For actual measurements on large plates, a solution based on the rotation of a generation line using an axicon lens is tested. Texture variations across the width of steel plates and the influence of residual stress are discussed.
Publication date
LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NRC number53824
NPARC number18375258
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Record identifier5b579dd2-c91a-4e84-88ee-7d73b7898dbc
Record created2011-08-04
Record modified2016-05-09
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