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dc.contributor.authorOrtín, Jordi, 1959-cat
dc.description.abstractStress-strain trajectories associated with pseudoelastic behavior of a Cu¿19.4 Zn¿13.1 Al (at.%) single crystal at room temperature have been determined experimentally. For a constant cross-head speed the trajectories and the associated hysteresis behavior are perfectly reproducible; the trajectories exhibit memory properties, dependent only on the values of return points, where transformation direction is reverted. An adapted version of the Preisach model for hysteresis has been implemented to predict the observed trajectories, using a set of experimental first¿order reversal curves as input data. Explicit formulas have been derived giving all trajectories in terms of this data set, with no adjustable parameters. Comparison between experimental and calculated trajectories shows a much better agreement for descending than for ascending paths, an indication of a dissymmetry between the dissipation mechanisms operative in forward and reverse directions of martensitic transformation.eng
dc.format.extent8 p.-
dc.publisherAmerican Institute of Physics-
dc.relation.isformatofReproducció del document publicat a:
dc.relation.ispartofJournal of Applied Physics, 1992, vol. 71, núm. 3, p. 1454-1461-
dc.rights(c) American Institute of Physics, 1992-
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationCiència dels materialscat
dc.subject.classificationEquacions d'estatcat
dc.subject.classificationRegla de les fases i equilibricat
dc.subject.classificationTransformacions de fase (Física estadística)cat
dc.subject.otherMaterials scienceeng
dc.subject.otherEquations of stateeng
dc.subject.otherPhase rule and equilibriumeng
dc.subject.otherPhase transformations (Statistical physics)eng
dc.titlePreisach modeling of hysteresis for a pseudoelastic Cu-Zn-Al single crystaleng
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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