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Plastic deformation of multicrystalline thin films: grain size distribution vs. grain orientation

journal contribution
posted on 24.04.2013, 15:28 by Saurabh Puri, Anish RoyAnish Roy
A continuum model of plasticity, Mesoscopic Field Dislocation Mechanics (MFDM), is used to study the interplay between grain size and grain orientation on the mechanical response of multicrystalline thin films undergoing plane strain tension. It is shown that the grain size dependence in the case of multicrystals is controlled by those grains which are relatively more susceptible to plastic deformation. This effect is captured to some extent by conventional crystal plasticity theory; however, the explicit incorporation of polar dislocations in the MFDM model significantly enhances the overall mechanical response as demonstrated in the paper.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

PURI, S. and ROY, A., 2012. Plastic deformation of multicrystalline thin films: grain size distribution vs. grain orientation. Computational Materials Science, 52 (1), pp.20-24.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publication date

2012

Notes

This is the author’s version of a work that was accepted for publication in the journal Computational Materials Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published at: http://dx.doi.org/10.1016/j.commatsci.2011.03.001

ISSN

0927-0256

Language

en

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