Numéro
J. Phys. Colloques
Volume 49, Numéro C5, Octobre 1988
Interface Science and Engineering '87
An International Conference on the Structure and Properties of Internal Interfaces
Page(s) C5-507 - C5-519
DOI https://doi.org/10.1051/jphyscol:1988562
Interface Science and Engineering '87
An International Conference on the Structure and Properties of Internal Interfaces

J. Phys. Colloques 49 (1988) C5-507-C5-519

DOI: 10.1051/jphyscol:1988562

GRAIN BOUNDARY DESIGN FOR DESIRABLE MECHANICAL PROPERTIES

T. WATANABE

Department of Materials Science, Faculty of Enginneering, Tohoku University, Sendai 980, Japan


Abstract
Grain boundary design for desirable mechanical properties of polycrystalline materials is discussed on the basis of the intrinsic structure-dependent mechanical properties, particularly deformation and fracture of grain boundaries. The importance of the grain boundary character distribution (GBCD) is emphasized which is a new microstructural parameter controlling the properties of polycrystals. The results of recent studies of GBCD are presented. The potential for grain boundary design for strong and ductile polycrystals through the control of GBCD and boundary inclination is discussed.