Acoustic Imaging of a Titanium Casting.
NAVAL RESEARCH LAB WASHINGTON D C
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Various methods of imaging defects were used on a titanium casting 4 in. 100 mm thick. The techniques, all involving acoustic waves, were C-scan, isometric projection, scanned holography, and a new method called stereo-acoustic imaging. The results are compared, and the latter method is shown to provide a true three-dimensional image of the material volume. Author
- Metallurgy and Metallography