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ASM Handbook

Steel Heat Treating Technologies

Edited by
Jon L. Dossett
Jon L. Dossett
Consultant
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George E. Totten
George E. Totten
Portland State University
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ASM International
Volume
4B
ISBN electronic:
978-1-62708-166-5
Publication date:
2014
Book Chapter

Acoustical Characterization

By
Franc Ravnik
Franc Ravnik
University of Ljubljana
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Janez Grum
Janez Grum
University of Ljubljana
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Published:
2014
Page range:
315 - 321
Publication history
August 31, 2014

Abstract

This article focuses on the heat removal stages involved in quenching, and on the experimental setup used for measuring temperature and detecting sound signals with the help of illustrations and curves. The quenching process generates acoustic signals, which are the consequences of the phase transformation of steel and of the boiling process at the interface during the cooling process. The sound-pressure signal is captured by the hydrophone through sound-emission measurements that occur during steel quenching in different quenching media. The analysis of the results offers an interesting approach to evaluation and, more importantly, to monitoring, controlling, and optimizing the entire quenching process.

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Franc Ravnik, Janez Grum, 2014. "Acoustical Characterization", Steel Heat Treating Technologies, Jon L. Dossett, George E. Totten

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