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Proceedings Paper

Correlation between the in-process acoustic emission method and the weight-loss method of measuring corrosion
Author(s): K. H.W. Seah; Kah Bin Lim; C. H. Chew; Swee Hin Teoh
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Paper Abstract

A series of experiments were conducted in which corrosion of mild steel in dilute hydrochloric acid was measured by the inprocess acoustic emission method as well as the conventional weightloss method. Results indicate that there is a marked correlation between these two methods of corrosion measurement. It is possible to detect the different stages of corrosion namely uniform corrosion nonuniform corrosion and intense localised corrosion based on the observed acoustic emission count rate. The acoustic emission signals emitted from the corrosion activities were of sufficient magnitude to be easily detected by piezoelectric transducers. The results demonstrate that the acoustic emission technique can be used to monitor and predict the rate of corrosion.

Paper Details

Date Published: 22 September 1993
PDF: 12 pages
Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156455
Show Author Affiliations
K. H.W. Seah, National Univ. of Singapore (Singapore)
Kah Bin Lim, National Univ. of Singapore (Singapore)
C. H. Chew, National Univ. of Singapore (Singapore)
Swee Hin Teoh, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 2101:
Measurement Technology and Intelligent Instruments
Li Zhu, Editor(s)

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