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Micromagnetic Surface Measurements for Evaluation of Surface Modifications Due to Cyclic Stress

Z. J. Chen
A. Strom
D. Jiles
Journal / Anthology

IEEE Transactions of Magnetics
Year: 1993
Volume: 29
Issue: 6
Page range: 3031-3033

Results of inspection of fatigue damage by two magnetic non-destructive methods are presented. The magnetic hysteresis method can detect fatigue damage in the later stages of fatigue life. Magnetic Barkhausen signals, being highly sensitive to the surface condition of a material, show a continuous change during the whole fatigue process. Barkhausen effect measurement, aided by signal processing techniques, is therefore capable of monitoring surface modifications due to cyclic stress.

*Engineering > Mechanical and Structural Engineering

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