Electromagnetic-Acoustic-Resonance Study on Fatigue of Metals -Noncontact Monitoring of Crack Initiation and Dislocation-Structure Change-
Hirotsugi OGI and Masahiko HIRAO
Key Words:Rotating bending fatigue, Carbon steels, Surface-shear-wave resonance, EMAT, Attenuation, Second harmonics, Small cracks, Dislocations