Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons
Ti‒50.13Ni and Ti‒49.62Ni (at.%) shape memory alloy ribbons were fabricated by melt-spinning method at different circumferential wheel velocities. The effects of wheel velocity, chemical composition and heat treatments on microstructure and Transformation temperature were investigated. Differences i...
| Autores principales: | , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
2016
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| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/14761/1/11.pdf |
| _version_ | 1824414133798305792 |
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| author | López Cuéllar, Enrique Manuel López Pavón, Luis Alberto Nuñez Mendoza, Esaú Araújo, Carlos José de Castro, Walman Benicio De González, Cezar Henrique Otubo, Jorge |
| author_facet | López Cuéllar, Enrique Manuel López Pavón, Luis Alberto Nuñez Mendoza, Esaú Araújo, Carlos José de Castro, Walman Benicio De González, Cezar Henrique Otubo, Jorge |
| author_sort | López Cuéllar, Enrique Manuel |
| collection | Repositorio Institucional |
| description | Ti‒50.13Ni and Ti‒49.62Ni (at.%) shape memory alloy ribbons were fabricated by melt-spinning method at different circumferential wheel velocities. The effects of wheel velocity, chemical composition and heat treatments on microstructure and Transformation temperature were investigated. Differences in wheel velocity led to differences in cooling rate and sample dimension, as well as in phase transformation temperatures. Two heat treatment conditions were studied, 350°C for 1h and 350°C for 5h. In the samples produced at high wheel velocity and heat-treated at 350°C for 5h, nanosized Ti-rich precipitates were observed in both chemical compositions. Cross-sectional microstructure was
studied by optical microscopy; SEM was used to study the nanometric grains and nano precipitation. The transformation temperatures were analyzed by DSC. |
| format | Article |
| id | eprints-14761 |
| institution | UANL |
| language | English |
| publishDate | 2016 |
| record_format | eprints |
| spelling | eprints-147612024-03-05T17:26:48Z http://eprints.uanl.mx/14761/ Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons López Cuéllar, Enrique Manuel López Pavón, Luis Alberto Nuñez Mendoza, Esaú Araújo, Carlos José de Castro, Walman Benicio De González, Cezar Henrique Otubo, Jorge T Tecnología en General Ti‒50.13Ni and Ti‒49.62Ni (at.%) shape memory alloy ribbons were fabricated by melt-spinning method at different circumferential wheel velocities. The effects of wheel velocity, chemical composition and heat treatments on microstructure and Transformation temperature were investigated. Differences in wheel velocity led to differences in cooling rate and sample dimension, as well as in phase transformation temperatures. Two heat treatment conditions were studied, 350°C for 1h and 350°C for 5h. In the samples produced at high wheel velocity and heat-treated at 350°C for 5h, nanosized Ti-rich precipitates were observed in both chemical compositions. Cross-sectional microstructure was studied by optical microscopy; SEM was used to study the nanometric grains and nano precipitation. The transformation temperatures were analyzed by DSC. 2016 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/14761/1/11.pdf http://eprints.uanl.mx/14761/1.haspreviewThumbnailVersion/11.pdf López Cuéllar, Enrique Manuel y López Pavón, Luis Alberto y Nuñez Mendoza, Esaú y Araújo, Carlos José de y Castro, Walman Benicio De y González, Cezar Henrique y Otubo, Jorge (2016) Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons. Materials Research, 19 (5). pp. 1132-1137. ISSN 1516-1439 http://doi.org/10.1590/1980-5373-MR-2015-0380 doi:10.1590/1980-5373-MR-2015-0380 |
| spellingShingle | T Tecnología en General López Cuéllar, Enrique Manuel López Pavón, Luis Alberto Nuñez Mendoza, Esaú Araújo, Carlos José de Castro, Walman Benicio De González, Cezar Henrique Otubo, Jorge Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons |
| title_full | Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons |
| title_fullStr | Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons |
| title_full_unstemmed | Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons |
| title_short | Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons |
| title_sort | effect of spun velocities and composition on the microstructure and transformation temperatures of tini shape memory ribbons |
| topic | T Tecnología en General |
| url | http://eprints.uanl.mx/14761/1/11.pdf |
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