Abstract
Our study is aimed at developing a practical method for identifying the cracking geometrical shape from surface image obtained by scanning eddy current testing (ECT) probe. A various type of fatigue cracks are made from compact tension (CT) specimen of aluminum alloy samples. ECT signals are collected for those test samples using the absolute pancake probe. We discuss the features of ECT detecting signals of fatigue cracking which are different from electric discharge machining (EDM) crack signals.
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