Effect of interface dislocation Burgers vectors on elastic fields in anisotropic bicrystals
A recent anisotropic elasticity formalism for quantifying interface dislocation arrays is used to compute the variations in long-range elastic fields and short-range strain energies of misfit dislocations due to changes in the Burgers vectors of the interface dislocations. The importance of selectin...
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Elsevier
2016
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| Online Access: | http://hdl.handle.net/1721.1/103929 https://orcid.org/0000-0003-3949-0441 |
| _version_ | 1826197176805490688 |
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| author | Vattre, A. J. Demkowicz, Michael J. |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Vattre, A. J. Demkowicz, Michael J. |
| author_sort | Vattre, A. J. |
| collection | MIT |
| description | A recent anisotropic elasticity formalism for quantifying interface dislocation arrays is used to compute the variations in long-range elastic fields and short-range strain energies of misfit dislocations due to changes in the Burgers vectors of the interface dislocations. The importance of selecting proper reference states for tilt and twist grain boundaries as well as a heterophase interface formed by tetragonal crystals is discussed in terms of partitioning of strain and rotation fields. For constrained interfaces consistent with the Frank–Bilby equation, the present work shows that examining the strain energies of different admissible dislocation configurations may be used as a criterion for predicting the most favorable structures. |
| first_indexed | 2024-09-23T10:43:40Z |
| format | Article |
| id | mit-1721.1/103929 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:43:40Z |
| publishDate | 2016 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/1039292022-09-27T14:34:12Z Effect of interface dislocation Burgers vectors on elastic fields in anisotropic bicrystals Vattre, A. J. Demkowicz, Michael J. Massachusetts Institute of Technology. Department of Materials Science and Engineering Demkowicz, Michael J. Demkowicz, Michael J. A recent anisotropic elasticity formalism for quantifying interface dislocation arrays is used to compute the variations in long-range elastic fields and short-range strain energies of misfit dislocations due to changes in the Burgers vectors of the interface dislocations. The importance of selecting proper reference states for tilt and twist grain boundaries as well as a heterophase interface formed by tetragonal crystals is discussed in terms of partitioning of strain and rotation fields. For constrained interfaces consistent with the Frank–Bilby equation, the present work shows that examining the strain energies of different admissible dislocation configurations may be used as a criterion for predicting the most favorable structures. National Science Foundation (U.S.) (NSF Grant No. 1150862) 2016-08-16T15:05:15Z 2016-08-16T15:05:15Z 2014-04 2014-02 Article http://purl.org/eprint/type/JournalArticle 09270256 http://hdl.handle.net/1721.1/103929 Vattré, A.J., and M.J. Demkowicz. “Effect of Interface Dislocation Burgers Vectors on Elastic Fields in Anisotropic Bicrystals.” Computational Materials Science 88 (June 2014): 110–115. https://orcid.org/0000-0003-3949-0441 en_US http://dx.doi.org/10.1016/j.commatsci.2014.02.044 Computational Materials Science Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc/3.0/ application/pdf Elsevier Prof. Demkowicz via Angie Locknar |
| spellingShingle | Vattre, A. J. Demkowicz, Michael J. Effect of interface dislocation Burgers vectors on elastic fields in anisotropic bicrystals |
| title | Effect of interface dislocation Burgers vectors on elastic fields in anisotropic bicrystals |
| title_full | Effect of interface dislocation Burgers vectors on elastic fields in anisotropic bicrystals |
| title_fullStr | Effect of interface dislocation Burgers vectors on elastic fields in anisotropic bicrystals |
| title_full_unstemmed | Effect of interface dislocation Burgers vectors on elastic fields in anisotropic bicrystals |
| title_short | Effect of interface dislocation Burgers vectors on elastic fields in anisotropic bicrystals |
| title_sort | effect of interface dislocation burgers vectors on elastic fields in anisotropic bicrystals |
| url | http://hdl.handle.net/1721.1/103929 https://orcid.org/0000-0003-3949-0441 |
| work_keys_str_mv | AT vattreaj effectofinterfacedislocationburgersvectorsonelasticfieldsinanisotropicbicrystals AT demkowiczmichaelj effectofinterfacedislocationburgersvectorsonelasticfieldsinanisotropicbicrystals |