dc.contributor.author | Ruiz Larrea, María Isabel | |
dc.contributor.author | López Echarri, Ángel María | |
dc.contributor.author | Breczewski Filberek, Tomasz | |
dc.contributor.author | López, Gabriel Alejandro | |
dc.contributor.author | López Ferreño, Iñaki | |
dc.contributor.author | Nó Sánchez, María Luisa | |
dc.contributor.author | San Juan Núñez, José María | |
dc.date.accessioned | 2019-03-07T13:58:01Z | |
dc.date.available | 2019-03-07T13:58:01Z | |
dc.date.issued | 2018-04 | |
dc.identifier.citation | Metals 8(4) : (2018) // Article ID 246 | es_ES |
dc.identifier.issn | 2075-4701 | |
dc.identifier.uri | http://hdl.handle.net/10810/31916 | |
dc.description.abstract | The multistage martensitic phase transformation of a polycrystalline NiTi shape-memory alloy (50.3 at. %Ni-49.7 at. % Ti) has been studied by means of calorimetric measurements. After a conventional thermal treatment followed by successive thermal cycles, the initial two-step forward transformation splits into four-overlapping stages. However, the reverse martensitic transformation maintains the initial two-step sequence, usually assigned to the B19'-> R -> B2 transformation. The correlation between the forward and reverse steps has been established by means of selected thermal cycles together with an estimation of their enthalpy and thermal hysteresis. These results have also provided information about the storage of the elastic strain energy and the frictional works associated with the variants' nucleation. Moreover, the study around the forward transformation temperature range by means of uncompleted thermal cycles undoubtedly shows the presence of temperature memory effects in both stages. | es_ES |
dc.description.sponsorship | This work has been supported by the Spanish Ministry of Economy and Competitiveness, MINECO, CONSOLIDER-INGENIO 2010 CSD2009-00013, as well as by the Consolidated Research Group IT-1090-16 and the ELKARTEK-ACTIMAT project from the Education and Industry Departments of the Basque Government. The University of the Basque Country has also supported this work with the Research Group grant: UPV/EHU GIU17/071. The authors appreciate the cooperation of J. Rodriguez-Aseguinolaza in the thermal treatments of the samples. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/CONSOLIDER-INGENIO 2010 CSD2009-00013 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | shape-memory alloys | es_ES |
dc.subject | martensitic transformation | es_ES |
dc.subject | thermal properties | es_ES |
dc.subject | differential scanning calorimetry | es_ES |
dc.subject | thermoelastic martensitic-transformation | es_ES |
dc.subject | behavior | es_ES |
dc.subject | temperature | es_ES |
dc.subject | phase | es_ES |
dc.subject | microstructure | es_ES |
dc.subject | thermodynamics | es_ES |
dc.subject | diffraction | es_ES |
dc.subject | stress | es_ES |
dc.subject | grains | es_ES |
dc.title | The Influence of Thermal History on the Multistage Transformation of NiTi Shape-Memory Alloys | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.mdpi.com/2075-4701/8/4/246 | es_ES |
dc.identifier.doi | 10.3390/met8040246 | |
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 |