DISLOCATION MOBILITY IN 5N ALUMINIUM DURING PUSH-PULL CYCLING STUDIED BY ULTRASONIC ATTENUATION MEASUREMENTS A. VINCENT, A. HAMEL, J. CHICOIS et R. FOUGERES J. Phys. Colloques, 46 C10 (1985) C10-321-C10-324 DOI: 10.1051/jphyscol:19851071