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Model-Based Inversion of Eddy Current Data for Classification and Sizing of Planar and Volumetric Discontinuities
John C. Aldrin, Erin K. Oneida, Eric B. Shell, Vikas Sinha, Kristi Keller, Jeong K. Na, Alisha L. Hutson, Harold A. Sabbagh, Elias Sabbagh, R. Kim Murphy, Siamack Mazdiyasni, Matthew R. Cherry, Daniel M. Sparkman
For powder metallurgy nickel-based superalloys, non-metallic inclusions (NMIs) and non-metallic particles are frequently present. If an EC inspection can reliably classify NMI indications from crack indications, there would be significant payoff for the USAF. Progress is presented on the development of a model-based inversion scheme incorporating VIC-3D® EC NDE simulated results. Inversion results are presented highlighting recent work to demonstrate characterization of sub-surface volumetric indications.
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