Hystersis and Acoustic Emission as Non-Destructive Measures of the Fatigue Process in Metals.
Final rept. 1 Apr 95-31 May 97,
ILLINOIS INST OF TECH CHICAGO
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Piezomagnetic effects are due to interactions between the mechanical and magnetic mesostructure of materials. In particular, under repeated loading cycles, microplastic processes generate dislocations and modify the texture of grains, voids, inclusions, and other defects. These mechanical changes in turn alter the arrangement of the coextensive ferromagnetic domain structure and affect the intensity of the associated magnetic fields.
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