Issue
J. Phys. Colloques
Volume 51, Number C1, Janvier 1990
Proceeding of the International Congress
Intergranular and Interphase Boundaries in materials
Page(s) C1-525 - C1-529
DOI https://doi.org/10.1051/jphyscol:1990182
J. Phys. Colloques 51, C1-525-C1-529 (1990)
DOI: 10.1051/jphyscol:1990182

NUCLEATION OF RECRYSTALLIZED GRAINS NEAR BOUNDARY IN COPPER BICRYSTALS

F. INOKO, T. HAMA, M. TAGAMI et T. YOSHIKAWA

Department of Mechanical Engineering, Faculty of Engineering, The University of Tokushima, Minamijosanjima, Tokushima 770, Japan


Abstract
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.