Huang, Mingxin and Rivera-Díaz-del-Castillo, Pedro E J and Bouaziz, Olivier and van der Zwaag, Sybrand (2009) Modelling the strength of ultrafine-grained and nanocrystalline fcc metals. Scripta Materialia, 61 (12). pp. 1113-1116. ISSN 1359-6462
Full text not available from this repository.Abstract
A model for predicting the steady-state flow stress in ultrafine-grained and nanocrystalline face-centred cubic metals based on irreversible thermodynamics is presented. Grain size, temperature and strain-rate effects are incorporated. Nanoscale effects are accounted for via dislocation propagation and annihilation mechanisms invoking an Orowan-type dislocation glide mechanism, and a vacancy-mediated annihilation mechanism at the interface, respectively. Model predictions show good agreement with experiments for pure Cu and Al.