Ontology highlight
ABSTRACT:
SUBMITTER: Kondo S
PROVIDER: S-EPMC5106199 | biostudies-literature | 2016 Nov
REPOSITORIES: biostudies-literature
Kondo Shun S Mitsuma Tasuku T Shibata Naoya N Ikuhara Yuichi Y
Science advances 20161111 11
In deformation processes, the presence of grain boundaries has a crucial influence on dislocation behavior; these boundaries drastically change the mechanical properties of polycrystalline materials. It has been considered that grain boundaries act as effective barriers for dislocation glide, but the origin of this barrier-like behavior has been a matter of conjecture for many years. We directly observe how the motion of individual dislocations is impeded at well-defined high-angle and low-angle ...[more]