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Table 2 Parameters adopted in the ECT experiments

From: Subsurface Defect Evaluation of Selective-Laser-Melted Inconel 738LC Alloy Using Eddy Current Testing for Additive/Subtractive Hybrid Manufacturing

Parameter Value
Diameter of defects (mm) 0.4, 0.8, 1.2, 1.6
Lift-off distance (mm) 0.07‒1.60
Frequency (kHz) 30-1000
Scanning speed (mm/min) 600
Gain (dB) 35