journal article·2004-10

On the Core Localization of Grain Boundary Extrinsic Dislocations in Nickel

B. Décamps, L. Priester, J. Thibault

Advanced Engineering Materials· Volume 6· Issue 10
Publisher page

Abstract

Grain boundaries (GBs) have a significant influence on mechanical properties of single‐phase materials. During deformation, matrix dislocations interact with GBs that constitute very strong barriers to dislocation glide processes. Some dislocations may enter the GB, giving rise to extrinsic grain‐boundary dislocations (EGBDs) which disturb the ntrinsic GB structure. Stress relaxation associated to EGBDs must occur for the plastic deformation to go on and for the GB to return to equilibrium.
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Research context

OpenAlex topics: Microstructure and mechanical properties · High Temperature Alloys and Creep · Microstructure and Mechanical Properties of Steels

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