Campus Units

Materials Science and Engineering, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

2015

Journal or Book Title

Journal of Applied Physics

Volume

117

Issue

8

First Page

085302

DOI

10.1063/1.4913381

Abstract

We report the results of a molecular dynamics study of the effect of texture on the yield and peak stresses in columnar-grained nanotwinned Ag and Cu. The simulations suggest that in pure nanotwinned face-centered cubic metals, the strength is determined primarily by the cooperation or competition between two major factors: the magnitude of the Schmid factors for the available slip systems and the effectiveness of grain boundaries (and their triple-junctions) in generating dislocations. These factors and their relative impact depend on the geometry of the specimen relative to the applied stress, which is typically reflected in the texture of the material in experimental studies. The detailed mechanisms of plastic deformation are discussed for seven specific geometries that represent a range of different textures.

Comments

The following article appeared in Journal of Applied Physics 117, 085302 (2015); doi: http://dx.doi.org/10.1063/1.4913381.

Rights

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.

Copyright Owner

American Institute of Physics

Language

en

File Format

application/pdf

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