Determination of Grain Size in Deep Drawing Steel Sheet by Laser Ultrasonics

Anmin Yin; Quan Yang; Fei He; Huifang Xiao

doi:10.2320/matertrans.I-M2014808

This article has now been updated. Please use the final version.

Determination of Grain Size in Deep Drawing Steel Sheet by Laser Ultrasonics

Anmin Yin, Quan Yang, Fei He, Huifang Xiao

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Keywords: laser ultrasonic, attenuation, on-line measurement, grain size, interstitial free (IF) steel

JOURNAL RESTRICTED ACCESS Advance online publication

Article ID: I-M2014808

DOI https://doi.org/10.2320/matertrans.I-M2014808

The final version of this article is now available: Vol. 55 (2014), No. 7 pp. 994-997

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Abstract

The laser ultrasonic technique has been used to determine grain sizes in Interstitial Free (IF) steels. With an analysis method that employs scattering theory, absolute values of the average grain size have been calculated directly from the ultrasonic traces. These results indicate that the laser ultrasonic technique may be incorporated on-line for direct measurements of grain size during steel production.

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