Long-Range Atomic Order and Entropy Change at the Martensitic Transformation in a Ni-Mn-In-Co Metamagnetic Shape Memory Alloy
The influence of the atomic order on the martensitic transformation entropy change has been studied in a Ni-Mn-In-Co metamagnetic shape memory alloy through the evolution of the transformation temperatures under high-temperature quenching and post-quench annealing thermal treatments. It is confirme...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2014-05-01
|
| Series: | Entropy |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1099-4300/16/5/2756 |
| _version_ | 1811184685940736000 |
|---|---|
| author | Vicente Sánchez-Alarcos Vicente Recarte José Ignacio Pérez-Landazábal Eduard Cesari José Alberto Rodríguez-Velamazán |
| author_facet | Vicente Sánchez-Alarcos Vicente Recarte José Ignacio Pérez-Landazábal Eduard Cesari José Alberto Rodríguez-Velamazán |
| author_sort | Vicente Sánchez-Alarcos |
| collection | DOAJ |
| description | The influence of the atomic order on the martensitic transformation entropy change has been studied in a Ni-Mn-In-Co metamagnetic shape memory alloy through the evolution of the transformation temperatures under high-temperature quenching and post-quench annealing thermal treatments. It is confirmed that the entropy change evolves as a consequence of the variations on the degree of L21 atomic order brought by thermal treatments, though, contrary to what occurs in ternary Ni-Mn-In, post-quench aging appears to be the most effective way to modify the transformation entropy in Ni-Mn-In-Co. It is also shown that any entropy change value between around 40 and 5 J/kgK can be achieved in a controllable way for a single alloy under the appropriate aging treatment, thus bringing out the possibility of properly tune the magnetocaloric effect. |
| first_indexed | 2024-04-11T13:16:35Z |
| format | Article |
| id | doaj.art-01f00d6707b740eda227978a35676fc0 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-11T13:16:35Z |
| publishDate | 2014-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-01f00d6707b740eda227978a35676fc02022-12-22T04:22:23ZengMDPI AGEntropy1099-43002014-05-011652756276710.3390/e16052756e16052756Long-Range Atomic Order and Entropy Change at the Martensitic Transformation in a Ni-Mn-In-Co Metamagnetic Shape Memory AlloyVicente Sánchez-Alarcos0Vicente Recarte1José Ignacio Pérez-Landazábal2Eduard Cesari3José Alberto Rodríguez-Velamazán4Departamento de Física, Universidad Pública de Navarra, Campus de Arrosadía, 31006 Pamplona, SpainDepartamento de Física, Universidad Pública de Navarra, Campus de Arrosadía, 31006 Pamplona, SpainDepartamento de Física, Universidad Pública de Navarra, Campus de Arrosadía, 31006 Pamplona, SpainDepartament de Física, Universitat de les Illes Balears, Ctra. de Valldemossa, km 7.5, E-07122 Palma de Mallorca, SpainInstituto de Ciencia de Materiales de Aragón, CSIC - Universidad de Zaragoza, 50009 Zaragoza, SpainThe influence of the atomic order on the martensitic transformation entropy change has been studied in a Ni-Mn-In-Co metamagnetic shape memory alloy through the evolution of the transformation temperatures under high-temperature quenching and post-quench annealing thermal treatments. It is confirmed that the entropy change evolves as a consequence of the variations on the degree of L21 atomic order brought by thermal treatments, though, contrary to what occurs in ternary Ni-Mn-In, post-quench aging appears to be the most effective way to modify the transformation entropy in Ni-Mn-In-Co. It is also shown that any entropy change value between around 40 and 5 J/kgK can be achieved in a controllable way for a single alloy under the appropriate aging treatment, thus bringing out the possibility of properly tune the magnetocaloric effect.http://www.mdpi.com/1099-4300/16/5/2756Ni-Mn-In-Coentropy changeatomic ordermartensitic transformationmetamagnetic shape memory alloys |
| spellingShingle | Vicente Sánchez-Alarcos Vicente Recarte José Ignacio Pérez-Landazábal Eduard Cesari José Alberto Rodríguez-Velamazán Long-Range Atomic Order and Entropy Change at the Martensitic Transformation in a Ni-Mn-In-Co Metamagnetic Shape Memory Alloy Entropy Ni-Mn-In-Co entropy change atomic order martensitic transformation metamagnetic shape memory alloys |
| title | Long-Range Atomic Order and Entropy Change at the Martensitic Transformation in a Ni-Mn-In-Co Metamagnetic Shape Memory Alloy |
| title_full | Long-Range Atomic Order and Entropy Change at the Martensitic Transformation in a Ni-Mn-In-Co Metamagnetic Shape Memory Alloy |
| title_fullStr | Long-Range Atomic Order and Entropy Change at the Martensitic Transformation in a Ni-Mn-In-Co Metamagnetic Shape Memory Alloy |
| title_full_unstemmed | Long-Range Atomic Order and Entropy Change at the Martensitic Transformation in a Ni-Mn-In-Co Metamagnetic Shape Memory Alloy |
| title_short | Long-Range Atomic Order and Entropy Change at the Martensitic Transformation in a Ni-Mn-In-Co Metamagnetic Shape Memory Alloy |
| title_sort | long range atomic order and entropy change at the martensitic transformation in a ni mn in co metamagnetic shape memory alloy |
| topic | Ni-Mn-In-Co entropy change atomic order martensitic transformation metamagnetic shape memory alloys |
| url | http://www.mdpi.com/1099-4300/16/5/2756 |
| work_keys_str_mv | AT vicentesanchezalarcos longrangeatomicorderandentropychangeatthemartensitictransformationinanimnincometamagneticshapememoryalloy AT vicenterecarte longrangeatomicorderandentropychangeatthemartensitictransformationinanimnincometamagneticshapememoryalloy AT joseignacioperezlandazabal longrangeatomicorderandentropychangeatthemartensitictransformationinanimnincometamagneticshapememoryalloy AT eduardcesari longrangeatomicorderandentropychangeatthemartensitictransformationinanimnincometamagneticshapememoryalloy AT josealbertorodriguezvelamazan longrangeatomicorderandentropychangeatthemartensitictransformationinanimnincometamagneticshapememoryalloy |