Detection and Imaging of Inclusions and Planar Flaws in Titanium Castings Including Weld Repaired Regions

In Phase I of this Air Force SBIR, JENTEK has demonstrated the capability of high resolution imaging MWM-Arrays to detect and map inclusions and deleterious surface alpha in the near-surface region [within the first 0.1 inches (2.5 mm)] of Ti-6Al-4Vcastings. JENTEK has also demonstrated reliable crack detection in Ti-6Al-4V and contamination assessment of titanium welds. Using model-based inversion methods, multi-channel instrumentation, high-resolution MWM-Arrays, and filtering techniques, JENTEKwill focus in Phase II on (1) adaptation of smaller imaging MWM-Arrays to accommodate actual Ti-6Al-4V cast component geometries of interest, (2) enhancement of MWM-Array capability for high-resolution reproducible imaging for a range of Air Forceapplications, including but not limited to inclusions and surface alpha for parts, (3) development of fieldable procedures for detection of buried inclusions and surface alpha in titanium castings; and (4) enhancement of existing capabilities for one ortwo additional applications selected by the Air Force, e.g., hidden corrosion detection or detection of cracks and thermal damage under coatings.