Texture mediated grain boundary network design in two dimensions
Name
2D GB network design, JMR.pdf
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524.12 KB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Johnson, Oliver K.
Schuh, Christopher A
Date Issued
May 2016
Journal
Journal of Materials Research
Publisher
Cambridge University Press
Citation
Johnson, Oliver K., and Schuh, Christopher A. “Texture Mediated Grain Boundary Network Design in Two Dimensions.” Journal of Materials Research 31, 9 (May 2016): 1171–1184 © 2016 Materials Research Society
Version
Final published version
Abstract
While materials design in the context of texture dependent properties is well developed, theoretical tools for microstructure design in the context of grain boundary sensitive properties have not yet been established. In the present work, we present an invertible relationship between texture and grain boundary network structure for the case of spatially uncorrelated two-dimensional textures. By exploiting this connection, we develop mathematical tools that permit the rigorous optimization of grain boundary network structure. Using a specific multi-objective materials design case study involving elastic, plastic and kinetic properties, we illustrate the utility of this texture mediated approach to grain boundary network design. We obtain a microstructure that minimizes grain boundary network diffusivity while simultaneously improving yield strength by an amount equal to half of the theoretically possible range. The theoretical tools developed here could complement experimental grain boundary engineering efforts to help accelerate the discovery of materials with improved performance.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1557/jmr.2016.138
