Grain boundary mediated plasticity: the role of grain boundary atomic structure and thermal activation
Rights accessOpen Access
European Commission's projectM4F - MULTISCALE MODELLING FOR FUSION AND FISSION MATERIALS (EC-H2020-755039)
The interaction of dislocation pile-ups with several tilt grain boundaries (GB) is studied in copper by using a hybrid continuum-atomistic approach. The effects of temperature, pile-up intensity and GB structure on absorption and transmission of slip as a function of local stress state are explored. By considering several high-angle GBs with different misorientation angles, we demonstrate that GB atomic structure primarily defines its ability to accommodate incoming pile-up dislocations, thus limiting the direct transmission of pile-ups through the interface.
CitationTerentyev, D., Bakaev, A., Serra, A., Pavia, F., Baker, K., Anento, N. Grain boundary mediated plasticity: the role of grain boundary atomic structure and thermal activation. "Scripta materialia", Març 2018, vol. 145, p. 1-4.