This is not the latest version of this item. The latest version can be found here.
Texture Mediated Grain Boundary Network Design in Three Dimensions
Name
Johnson, Schuh - 2018 - Texture mediated grain boundary network design in three dimensions_1.pdf
Description
Accepted version
Size
3.74 MB
Format
Adobe PDF
Checksum (MD5)
5d405386a1394e9f4597586756b486e6
Author(s)
Johnson, Oliver K
Schuh, Christopher A
Date Issued
2018
Journal
Mechanics of Materials
Publisher
Elsevier BV
Version
Author's final manuscript
Abstract
© 2017 Elsevier Ltd Experimental grain boundary engineering studies have demonstrated the potential for materials properties enhancement via the modification of grain boundary network structure. These techniques apply to materials that readily form annealing twins and are amenable to cyclic thermomechanical processing and have resulted in dramatic property enhancement. In this work we present a theoretical framework that enables the design of grain boundary networks in polycrystalline materials through an alternative approach: exploitation of a relationship between crystallographic texture and grain boundary network structure. Because crystallographic texture is a universal characteristic of polycrystalline materials, this work has the potential to significantly expand the class of materials whose grain boundary networks can be controlled. We demonstrate the utility of the approach by application to a concrete design problem involving competing design objectives for yield strength, elastic compliance, and resistance to electromigration. We construct the first materials properties closure to comprise grain boundary network sensitive properties and identify an optimal microstructure that is predicted to outperform an undesigned isotropic material.
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
10.1016/J.MECHMAT.2017.12.001
