J. Phys. Colloques
Volume 51, Numéro C1, Janvier 1990Proceeding of the International Congress
Intergranular and Interphase Boundaries in materials
|Page(s)||C1-525 - C1-529|
NUCLEATION OF RECRYSTALLIZED GRAINS NEAR BOUNDARY IN COPPER BICRYSTALSF. INOKO, T. HAMA, M. TAGAMI et T. YOSHIKAWA
Department of Mechanical Engineering, Faculty of Engineering, The University of Tokushima, Minamijosanjima, Tokushima 770, Japan
The recrystallization at a common π/9 rad near <110> tilt grain boundary in copper bicrystals was studied. The bicrystals had such orientation that screw dislocations of each primary slip system in both component crystals mainly piled-up to the boundary while edge dislocations of each corresponding coplanar slip system did. The recrystallized grains at each boundary were progressed by the three mechanisms of the <111> rotation, the strain induced boundary migration and the formation of twins. The twins were frequently formed before the accomplishment of polygonization.