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Innovative NDT technique for detection of surface cracks based on ferrofluids excited with DC and AC magnetic fields

Rojas Gregorio, José Ignacio; Cabrera, Blai; Musterni, Gerard; Nicolas, Jorge; Tristancho Martínez, Joshua; Crespo Artiaga, Daniel (2015-03-31)
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An innovative NDT technique is proposed for surface inspection of materials not necessarily magnetic or conductive, based on local magnetic field variations due to ferrofluid deposited in the cracks. The feasibility of the ...