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The hidden structure dependence of the chemical life of dislocations

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dc.contributor.authorZhou, X.
dc.contributor.authorMianroodi, J. R.
dc.contributor.authorda Silva, A. Kwiatkowski
dc.contributor.authorKoenig, T.
dc.contributor.authorThompson, G. B.
dc.contributor.authorShanthraj, P.
dc.contributor.authorPonge, D.
dc.contributor.authorGault, B.
dc.contributor.authorSvendsen, B.
dc.contributor.authorRaabe, D.
dc.contributor.otherMax Planck Society
dc.contributor.otherRWTH Aachen University
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.contributor.otherUniversity of Manchester
dc.contributor.otherImperial College London
dc.date.accessioned2023-09-28T19:11:33Z
dc.date.available2023-09-28T19:11:33Z
dc.date.issued2021
dc.description.abstractDislocations are one-dimensional defects in crystals, enabling their deformation, mechanical response, and transport properties. Less well known is their influence on material chemistry. The severe lattice distortion at these defects drives solute segregation to them, resulting in strong, localized spatial variations in chemistry that determine microstructure and material behavior. Recent advances in atomic-scale characterization methods have made it possible to quantitatively resolve defect types and segregation chemistry. As shown here for a Pt-Au model alloy, we observe a wide range of defect-specific solute (Au) decoration patterns of much greater variety and complexity than expected from the Cottrell cloud picture. The solute decoration of the dislocations can be up to half an order of magnitude higher than expected from classical theory, and the differences are determined by their structure, mutual alignment, and distortion field. This opens up pathways to use dislocations for the compositional and structural nanoscale design of advanced materials.en_US
dc.format.mediumelectronic
dc.format.mimetypeapplication/pdf
dc.identifier.citationZhou, X., Mianroodi, J. R., Kwiatkowski da Silva, A., Koenig, T., Thompson, G. B., Shanthraj, P., Ponge, D., Gault, B., Svendsen, B., & Raabe, D. (2021). The hidden structure dependence of the chemical life of dislocations. In Science Advances (Vol. 7, Issue 16). American Association for the Advancement of Science (AAAS). https://doi.org/10.1126/sciadv.abf0563
dc.identifier.doi10.1126/sciadv.abf0563
dc.identifier.orcidhttps://orcid.org/0000-0003-4778-3260
dc.identifier.orcidhttps://orcid.org/0000-0002-3789-4103
dc.identifier.orcidhttps://orcid.org/0000-0002-1519-9433
dc.identifier.orcidhttps://orcid.org/0000-0002-6378-379X
dc.identifier.orcidhttps://orcid.org/0000-0001-6912-9847
dc.identifier.orcidhttps://orcid.org/0000-0002-4934-0458
dc.identifier.orcidhttps://orcid.org/0000-0002-6324-0306
dc.identifier.urihttps://ir.ua.edu/handle/123456789/11004
dc.languageEnglish
dc.language.isoen_US
dc.publisherAmerican Association for the Advancement of Science
dc.rights.licenseAttribution-NonCommercial 4.0 International (CC BY-NC 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectATOM-PROBE
dc.subjectMOLECULAR-DYNAMICS
dc.subjectLINEAR COMPLEXIONS
dc.subjectSEGREGATION
dc.subjectMICROSCOPY
dc.subjectDEFECTS
dc.subjectCHEMISTRY
dc.subjectSTATES
dc.subjectMultidisciplinary Sciences
dc.titleThe hidden structure dependence of the chemical life of dislocationsen_US
dc.typeArticle
dc.typetext

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