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Detection of Subsurface Flaws in Metals with GMR Sensors

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.1916861· OSTI ID:20655353
;  [1]
  1. Advanced Nondestructive Inspection, General Dynamics, 2700 Indian Ripple Road, Dayton, Ohio 45440 (United States)
Cracks and flaws in multilayered nonferrous metal structure may be quantified by using Giant Magnetoresistive (GMR) sensor based eddy current technique. This noncontact method includes a lift-off distance as great as 3 mm. Aluminum and titanium alloy plates greater than 3 mm thick are successfully inspected. Hidden flaws in second plate down are clearly detected.
OSTI ID:
20655353
Journal Information:
AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 760; ISSN APCPCS; ISSN 0094-243X
Country of Publication:
United States
Language:
English

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