Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties
The recrystallization of a cold-worked shape memory alloy (SMA) without R-phase transition, i.e. the Ti-45.0Ni-5.0Cu (% at.), has been studied by thermoelectric power (TEP) technique and electrical resistivity change (Dρ) on several heat treated samples after cold working. This study was also suppor...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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2014
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| Online Access: | http://eprints.uanl.mx/15234/1/336.pdf |
| _version_ | 1824414294210510848 |
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| author | Soto Parra, Daniel Enrique Flores Zúñiga, Horacio Cuéllar, Enrique López Ochoa Gamboa, Raul Armando Ríos Jara, David |
| author_facet | Soto Parra, Daniel Enrique Flores Zúñiga, Horacio Cuéllar, Enrique López Ochoa Gamboa, Raul Armando Ríos Jara, David |
| author_sort | Soto Parra, Daniel Enrique |
| collection | Repositorio Institucional |
| description | The recrystallization of a cold-worked shape memory alloy (SMA) without R-phase transition, i.e. the Ti-45.0Ni-5.0Cu (% at.), has been studied by thermoelectric power (TEP) technique and electrical resistivity change (Dρ) on several heat treated samples after cold working. This study was also supported by differential scanning calorimetry (DSC), transmission electron microscopy (TEM)
and hardness Vickers (HV) measurements. Transformation temperatures show an increase with heat treatment temperature, while hysteresis decreases. Hardness values decrease with aging temperature for the same heat treatment time. No important changes were observed in electrical resistivity with heat treatment temperature, except at 300°C. TEP results show an important increase with heat treatment temperature, and a linear relationship was found between hardness and thermoelectric power. With this correlation between TEP and microhardness it is possible to predict its mechanical response by knowing its TEP, so this correlation could be important for applications. |
| format | Article |
| id | eprints-15234 |
| institution | UANL |
| language | English |
| publishDate | 2014 |
| record_format | eprints |
| spelling | eprints-152342019-03-12T22:54:14Z http://eprints.uanl.mx/15234/ Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties Soto Parra, Daniel Enrique Flores Zúñiga, Horacio Cuéllar, Enrique López Ochoa Gamboa, Raul Armando Ríos Jara, David TA Ingeniería General y Civil The recrystallization of a cold-worked shape memory alloy (SMA) without R-phase transition, i.e. the Ti-45.0Ni-5.0Cu (% at.), has been studied by thermoelectric power (TEP) technique and electrical resistivity change (Dρ) on several heat treated samples after cold working. This study was also supported by differential scanning calorimetry (DSC), transmission electron microscopy (TEM) and hardness Vickers (HV) measurements. Transformation temperatures show an increase with heat treatment temperature, while hysteresis decreases. Hardness values decrease with aging temperature for the same heat treatment time. No important changes were observed in electrical resistivity with heat treatment temperature, except at 300°C. TEP results show an important increase with heat treatment temperature, and a linear relationship was found between hardness and thermoelectric power. With this correlation between TEP and microhardness it is possible to predict its mechanical response by knowing its TEP, so this correlation could be important for applications. 2014 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/15234/1/336.pdf http://eprints.uanl.mx/15234/1.haspreviewThumbnailVersion/336.pdf Soto Parra, Daniel Enrique y Flores Zúñiga, Horacio y Cuéllar, Enrique López y Ochoa Gamboa, Raul Armando y Ríos Jara, David (2014) Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties. Materials Research, 17 (4). pp. 1023-1030. ISSN 1516-1439 http://doi.org/10.1590/1516-1439.265814 doi:10.1590/1516-1439.265814 |
| spellingShingle | TA Ingeniería General y Civil Soto Parra, Daniel Enrique Flores Zúñiga, Horacio Cuéllar, Enrique López Ochoa Gamboa, Raul Armando Ríos Jara, David Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties |
| title_full | Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties |
| title_fullStr | Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties |
| title_full_unstemmed | Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties |
| title_short | Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties |
| title_sort | recrystallization of a ti 45ni 5cu cold worked shape memory alloy characterized by thermoelectric power and electrical properties |
| topic | TA Ingeniería General y Civil |
| url | http://eprints.uanl.mx/15234/1/336.pdf |
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