| Numéro |
J. Phys. Colloques
Volume 49, Numéro C5, Octobre 1988
Interface Science and Engineering '87An International Conference on the Structure and Properties of Internal Interfaces |
|
|---|---|---|
| Page(s) | C5-599 - C5-604 | |
| DOI | https://doi.org/10.1051/jphyscol:1988575 | |
Interface Science and Engineering '87
An International Conference on the Structure and Properties of Internal Interfaces
J. Phys. Colloques 49 (1988) C5-599-C5-604
DOI: 10.1051/jphyscol:1988575
Department of Engineering Science, Faculty of Engineering, Kyoto University , Kyoto 606, Japan
An International Conference on the Structure and Properties of Internal Interfaces
J. Phys. Colloques 49 (1988) C5-599-C5-604
DOI: 10.1051/jphyscol:1988575
EFFECT OF THE TRIPLE JUNCTION ON GRAIN-BOUNDARY SLIDING IN ALUMINUM TRICRYSTALS
S. MIURA, S. HASHIMOTO et T.K. FUJIIDepartment of Engineering Science, Faculty of Engineering, Kyoto University , Kyoto 606, Japan
Abstract
Aluminum tricrystals were crept at 773K under a constant stress in order to investigate the effect of the triple junction on high temperature deformation. It has been demonstrated that grain-boundary sliding (GBS) can be accommodated by sliding and/or migration along other boundaries, but non-uniform sliding due to the existence of the triple junction gives rise to the localized deformation zone along the boundary. In certain cases, this could be accomodated by the so-called triple-point fold without significant plastic deformation interior the grain. The origin of the fold was found to be a lattice slip, whose activated system has to contain the triple junction, but not a deformation band.