NASA NTRS · 19850000225
Inexpensive Eddy-Current Standard
Abstract
Radial crack replicas serve as evaluation standards. Technique entails intimately joining two pieces of appropriate aluminum alloy stock and centering drilled hole through and along interface. Bore surface of hole presents two vertical stock interface lines 180 degrees apart. These lines serve as radial crack defect replicas during eddy-current technique setup and verification.
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Berry, Robert F., Jr.. 1985-10-01. Inexpensive Eddy-Current Standard. https://ntrs.nasa.gov/citations/19850000225
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