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dc.contributor.authorMao, Yunwei
dc.contributor.authorLi, Ju
dc.contributor.authorLo, Yu-Chieh
dc.contributor.authorQian, Xiaofeng
dc.contributor.authorMa, Evan
dc.date.accessioned2015-06-09T12:51:41Z
dc.date.available2015-06-09T12:51:41Z
dc.date.issued2015-06
dc.date.submitted2015-04
dc.identifier.issn1098-0121
dc.identifier.issn1550-235X
dc.identifier.urihttp://hdl.handle.net/1721.1/97230
dc.description.abstractAt elevated temperatures, glasses crystallize via thermally activated diffusion. However, metallic glasses can also undergo deformation-induced crystallization at very low temperatures. Here we demonstrate the crystallization of Al[subscript 50]Fe[subscript 50] metallic glasses under cyclic deformation at 50 K using molecular dynamics simulations and reveal the underlying atomic-scale processes. We demonstrate that stress-driven nonaffine atomic rearrangements, or shear diffusion transformation (SDT) events, lead to successive metabasin-to-metabasin transitions and long-range ordering. We also illustrate that the nucleation and growth of the crystal proceed via collective attachment of ordered clusters, advancing the amorphous/crystal interface in an intermittent manner. The cooperative nature of the steplike crystallization is attributed to the large activation volume of Eshelby transformations which generate as a by-product nonaffine diffusive atomic displacements that accumulate over loading cycles. The dual nature of shear (affine) and diffusion (nonaffine) in low-temperature stress-driven SDT events thus unifies inelasticity with crystallization.en_US
dc.description.sponsorshipNational Basic Research Program of China (973 Program) (Grant 2012CB619402)en_US
dc.description.sponsorshipNational Basic Research Program of China (111 Program) (Grant B06025)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant DMR-1120901)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant DMR-1410636)en_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevB.91.214103en_US
dc.rightsArticle 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.en_US
dc.sourceAmerican Physical Societyen_US
dc.titleStress-driven crystallization via shear-diffusion transformations in a metallic glass at very low temperaturesen_US
dc.typeArticleen_US
dc.identifier.citationMao, Yunwei, Ju Li, Yu-Chieh Lo, Xiaofeng Qian, and Evan Ma. “Stress-Driven Crystallization via Shear-Diffusion Transformations in a Metallic Glass at Very Low Temperatures.” Phys. Rev. B 91, no. 21 (June 2015). © 2015 American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineeringen_US
dc.contributor.mitauthorLi, Juen_US
dc.contributor.mitauthorLo, Yu-Chiehen_US
dc.contributor.mitauthorQian, Xiaofengen_US
dc.relation.journalPhysical Review Ben_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2015-06-05T22:00:04Z
dc.language.rfc3066en
dc.rights.holderAmerican Physical Society
dspace.orderedauthorsMao, Yunwei; Li, Ju; Lo, Yu-Chieh; Qian, Xiaofeng; Ma, Evanen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-7841-8058
mit.licensePUBLISHER_POLICYen_US


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