Institute of Physics of Materials AS CR, v. v. i. > Projects > Influence of initial crystallographic orientation on creep behaviour of SPD materials
Influence of initial crystallographic orientation on creep behaviour of SPD materials
| Investigator | Ing. Petr Král, Ph.D. |
| Number of Project | P108/10/P469 |
| Agency | Grantová agentura České republiky |
| Duration | 2009-12-31 - 2012-12-30 |
Anotace |
| Ultrafine-grained (UFG) materials processed by ECAP (equal-channel angular pressing) represent the new group of perspective materials. Despite of extensive research in these materials the evolution of microstructure and its influence on creep behaviour is still unclear. The creep properties of these materials are studied rarely and the creep mechanism(s) are not fully explained so far. The motivation of this project was to bring the new knowledge about the influence between formation of ultrafine-grained (UFG) microstructure and creep behaviour and about the creep mechanism(s) in materials processed by severe plastic deformation. The experiments were conducted on the single crystals with different orientations and on extremely coarse-grained polycrystals of some metals. The better understanding to the evolution of UFG microstructure and creep behaviour can be useful for broader use of these materials and can contribute to the more effective design of coarse-grained materials for ECAP deformation. |
