INVESTIGATION ON MICROSTRUCTURAL CHANGE IN COPPER DEFORMED AT STRAIN RATES OF UPTO 104 PER SECOND M.M. HAQUE, F.B. PICKERING et M.S.J. HASHMI J. Phys. Colloques, 49 C3 (1988) C3-105-C3-108 DOI: 10.1051/jphyscol:1988315