Strain-induced phase transformations under compression, unloading, and reloading in a diamond anvil cell

dc.contributor.author Feng, Biao
dc.contributor.author Zarechnyy, Oleg
dc.contributor.author Levitas, Valery
dc.contributor.author Levitas, Valery
dc.contributor.department Aerospace Engineering
dc.date 2018-02-13T18:14:53.000
dc.date.accessioned 2020-06-29T22:45:52Z
dc.date.available 2020-06-29T22:45:52Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2013
dc.date.embargo 2013-11-25
dc.date.issued 2013-05-07
dc.description.abstract <p>Strain-induced phase transformations (PTs) in a sample under compression, unloading, and reloading in a diamond anvil cell are investigated in detail, by applying finite element method. In contrast to previous studies, the kinetic equation includes the pressure range in which both direct and reverse PTs occur simultaneously. Results are compared to the case when “no transformation” region in the pressure range exists instead, for various values of the kinetic parameters and ratios of the yield strengths of low and high pressure phases. Under unloading (which has never been studied before), surprising plastic flow and reverse PT are found, which were neglected in experiments and change interpretation of experimental results. They are caused both by heterogeneous stress redistribution and transformation-induced plasticity. After reloading, the reverse PT continues followed by intense direct PT. However, PT is less pronounced than after initial compression and geometry of transformed zone changes. In particular, a localized transformed band of a weaker high pressure phase does not reappear in comparison with the initial compression. A number of experimental phenomena are reproduced and interpreted.</p>
dc.description.comments <p>The following article appeared in <em>Journal of Applied Physics</em> 113 (2013): 173514 and may be found at <a href="http://dx.doi.org/10.1063/1.4803851" target="_blank">http://dx.doi.org/10.1063/1.4803851</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/aere_pubs/30/
dc.identifier.articleid 1030
dc.identifier.contextkey 4854784
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath aere_pubs/30
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/2029
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/aere_pubs/30/2013_FengB_StrainIndusedPhaseTransformations.pdf|||Fri Jan 14 23:26:46 UTC 2022
dc.source.uri 10.1063/1.4803851
dc.subject.disciplines Aerospace Engineering
dc.subject.disciplines Materials Science and Engineering
dc.subject.disciplines Mechanical Engineering
dc.subject.keywords Mechanical Engineering
dc.subject.keywords Materials Science and Engineering
dc.subject.keywords High pressure
dc.subject.keywords Plasticity
dc.subject.keywords Diamond anvil cells
dc.subject.keywords Elasticity
dc.subject.keywords Multiphase flows
dc.subject.keywords Phase transitions
dc.subject.keywords Finite element methods
dc.subject.keywords Hydrostatics
dc.subject.keywords Tensor methods
dc.subject.keywords High pressure instruments
dc.title Strain-induced phase transformations under compression, unloading, and reloading in a diamond anvil cell
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 850871e3-115a-428e-82cc-cbfafef5cf66
relation.isOrgUnitOfPublication 047b23ca-7bd7-4194-b084-c4181d33d95d
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