Detection of grain-boundary resistance to slip transfer using nanoindentation

Nanoindentation measurements near a high-angle grain boundary in a Fe-14%Si bicrystal showed dislocation pile-up and transmission across the boundary. The latter is observed as a characteristic displacement jump, from which the Hall-Petch slope can be calculated as a measure for the slip transmission properties of the boundary. (C) 2005 Elsevier B.V. All rights reserved.