Attenuation of laser generated ultrasound in steel at high temperatures; Comparison of theory and experimental measurements

Christopher M. Kube

doi:10.1016/j.ultras.2016.05.009

Attenuation of laser generated ultrasound in steel at high temperatures; Comparison of theory and experimental measurements

Christopher M. Kube

Engineering Science and Mechanics

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	238-240
Number of pages	3
Journal	Ultrasonics
Volume	70
DOIs	https://doi.org/10.1016/j.ultras.2016.05.009
State	Published - Aug 1 2016

All Science Journal Classification (ASJC) codes

Acoustics and Ultrasonics

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10.1016/j.ultras.2016.05.009

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title = "Attenuation of laser generated ultrasound in steel at high temperatures; Comparison of theory and experimental measurements",

abstract = "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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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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Attenuation of laser generated ultrasound in steel at high temperatures; Comparison of theory and experimental measurements

Abstract

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