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http://hdl.handle.net/2445/9731
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DC Field | Value | Language |
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dc.contributor.author | Castán i Vidal, Maria Teresa | cat |
dc.contributor.author | Planes Vila, Antoni | cat |
dc.date.accessioned | 2009-10-20T11:04:21Z | - |
dc.date.available | 2009-10-20T11:04:21Z | - |
dc.date.issued | 1988 | cat |
dc.identifier.issn | 0163-1829 | cat |
dc.identifier.uri | http://hdl.handle.net/2445/9731 | - |
dc.description.abstract | The relationship between the elastic shear modulus C’=1/2(C11-C12) and the atomic order state in a shape-memory binary alloy AxB1−x above its martensitic transition temperature is analyzed. We first present a simple method to evaluate the elastic constants in binary alloys, assuming the atoms interact via a two-body Morse potential. For CuZn and AgZn alloys, the potential parameters corresponding to the different A-A, B-B, and A-B pairs are determined from experimental data of the elastic constant C’ for different alloy compositions. We next calculate C’ at 0 K as a function of the ordering state. To do this, we use atomic configurations obtained with a Monte Carlo simulation of the Ising model for a bcc binary alloy, at each temperature Ti. We obtain a linear relationship between C’ and the short-range-order parameter η. We also show that the deviations from the linear behavior observed when C’ is represented against the square of the long-rang-order parameter 〈S〉 come mainly from the critical behavior of the system near the order-disorder temperature Tc. | - |
dc.format.extent | 7 p. | cat |
dc.format.mimetype | application/pdf | eng |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | eng |
dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.38.7959 | cat |
dc.relation.ispartof | Physical Review B, 1988, vol. 38, núm. 12, p. 7959-7965. | eng |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevB.38.7959 | - |
dc.rights | (c) The American Physical Society, 1988 | eng |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Propietats mecàniques | cat |
dc.subject.classification | Diagrames de fase | cat |
dc.subject.classification | Aliatges binaris | cat |
dc.subject.classification | Elasticitat | cat |
dc.subject.other | Mechanical properties | eng |
dc.subject.other | Phase diagrams | eng |
dc.subject.other | Binary systems (Metallurgy) | eng |
dc.subject.other | Elasticity | eng |
dc.title | Elastic constants of bcc shape-memory binary alloys: Effect of the configurational ordering | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 10034 | cat |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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