dc.contributor.author | López Ferreño, Iñaki | |
dc.contributor.author | Breczewski Filberek, Tomasz | |
dc.contributor.author | López, Gabriel Alejandro | |
dc.contributor.author | Nó Sánchez, María Luisa | |
dc.contributor.author | San Juan Núñez, José María | |
dc.date.accessioned | 2018-03-02T10:00:05Z | |
dc.date.available | 2018-03-02T10:00:05Z | |
dc.date.issued | 2016-11 | |
dc.identifier.citation | Scripta Materialia 124 :155-159(2016) | es_ES |
dc.identifier.issn | 1359-6462 | |
dc.identifier.uri | http://hdl.handle.net/10810/25407 | |
dc.description.abstract | Cu-Al-based shape memory alloys are firm candidates to be used up to 473 K. The main limiting aspect is the activation of diffusion processes in the metastable austenite phase, which drive the alloy decomposition. In the present work the study of short-distance diffusion processes has been approached by internal friction. A relaxation peak has been found in the metastable beta (D0(3)) phase of a Cu-Al-Be shape memory alloy, around 500 K (at 1 Hz), with an activation energy of E-a = 138 +/- 0.05 eV. An atomic mechanism of elastic dipoles Antisite-Vacancy reorientation, involving stress-assisted short distance Cu-atoms diffusion, has been proposed. (C) 2016 Elsevier B.V. | es_ES |
dc.description.sponsorship | This work was supported by the European H2020 Project REACT, Grant No 640241, and the Spanish Ministry MINECO projects, MAT2012-36421 and CONSOLIDER-INGENIO 2010 CSD2009-00013, as well as by the Consolidated Research Group IT-1090-16 from the Education Department and the project ELKARTEK ACTIMAT, KK-2015/0000094, from the Industry Department of the Basque Government. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Pergamon-Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/640241 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/MAT2012-36421 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | shape memory alloys (SMA) | es_ES |
dc.subject | Cu-Al-Be | es_ES |
dc.subject | stress-assisted diffusion | es_ES |
dc.subject | internal friction | es_ES |
dc.subject | relaxation | es_ES |
dc.subject | single-crystals | es_ES |
dc.subject | superelasticity | es_ES |
dc.subject | transformation | es_ES |
dc.title | Stress-assisted atomic diffusion in metastable austenite D03 phase of Cu-Al-Be shape memory alloys | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2016 Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons/licenses/by-nc-nd/4.0/). | |
dc.rights.holder | Atribución-NoComercial-SinDerivadas 3.0 España | |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S1359646216302883?via%3Dihub | es_ES |
dc.identifier.doi | 10.1016/j.scriptamat.2016.06.034 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Física aplicada II | es_ES |
dc.departamentoes | Física de la materia condensada | es_ES |
dc.departamentoeu | Fisika aplikatua II | es_ES |
dc.departamentoeu | Materia kondentsatuaren fisika | es_ES |