Abstract
This review describes the utility of acoustic emission (AE) for the detection and monitoring of corrosion, stress corrosion cracking (SCC) and corrosion fatigue (CF). It surveys laboratory studies and field applications, which have been made to date. Various microprocesses that can produce detectable AE are shown and their relative energy levels, emanated as AE, are discussed in terms of peak amplitudes measured on laboratory specimens by conventional piezoelectric sensor. Practical manners to apply AE as a nondestructive test in engineering structures are presented. All the available information clearly demonstrates the potential usefulness of AE technique.
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