Open AccessMeasurement of texture in steel by laser-ultrasonic surface waves
Author(s) -
Daniel Lévesque,
C. S. Lim,
Christian Padioleau,
Alain Blouin
Publication year - 2011
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/278/1/012007
Subject(s) - ultrasonic sensor , texture (cosmology) , materials science , acoustics , laser , optics , computer science , artificial intelligence , physics , image (mathematics)
A laser-ultrasonic approach based on the propagation of surface skimming longitudinal wave (P-wave) and Rayleigh wave (SAW) is investigated for the measurement of 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. 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. For 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.Peer reviewed: YesNRC publication: Ye