TY - JOUR
T1 - Attenuation of laser generated ultrasound in steel at high temperatures; Comparison of theory and experimental measurements
AU - Kube, Christopher M.
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016/8/1
Y1 - 2016/8/1
N2 - This article reexamines some recently published laser ultrasound measurements of the longitudinal attenuation coefficient obtained during annealing of two steel samples (DP600 and S550). Theoretical attenuation models based on perturbation theory are compared to these experimental measurements. It is observed that the Rayleigh attenuation formulas provide the correct qualitative agreement, but overestimate the experimental values. The more general theoretical attenuation model considered here demonstrates strong quantitative agreement, which highlights the applicability of the model during real-time metal processing.
AB - This article reexamines some recently published laser ultrasound measurements of the longitudinal attenuation coefficient obtained during annealing of two steel samples (DP600 and S550). Theoretical attenuation models based on perturbation theory are compared to these experimental measurements. It is observed that the Rayleigh attenuation formulas provide the correct qualitative agreement, but overestimate the experimental values. The more general theoretical attenuation model considered here demonstrates strong quantitative agreement, which highlights the applicability of the model during real-time metal processing.
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U2 - 10.1016/j.ultras.2016.05.009
DO - 10.1016/j.ultras.2016.05.009
M3 - Article
AN - SCOPUS:84970024445
SN - 0041-624X
VL - 70
SP - 238
EP - 240
JO - Ultrasonics
JF - Ultrasonics
ER -