Effect of Spun Velocities and Composition on the Microstructure and Transformation Temperatures of TiNi Shape Memory Ribbons

López Cuéllar, Enrique Manuel y López Pavón, Luis y Nuñez Mendoza, Esaú y Araújo, Carlos José De y Castro, Walman Benicio De y Gonzalez, Cezar 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

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Resumen

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.

Tipo de elemento: Article
Palabras claves no controlados: Ti‒Ni Shape memory alloys Ribbons, Melt-spinning process, Ti rich nanoprecipitate, Transformation temperature
Materias: T Tecnología > T Tecnología en General
Divisiones: Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología
Usuario depositante: Lic. Jesús E. Alvarado
Creadores:
CreadorEmailORCID
López Cuéllar, Enrique ManuelNO ESPECIFICADONO ESPECIFICADO
López Pavón, LuisNO ESPECIFICADONO ESPECIFICADO
Nuñez Mendoza, EsaúNO ESPECIFICADONO ESPECIFICADO
Araújo, Carlos José DeNO ESPECIFICADONO ESPECIFICADO
Castro, Walman Benicio DeNO ESPECIFICADONO ESPECIFICADO
Gonzalez, CezarNO ESPECIFICADONO ESPECIFICADO
Otubo, JorgeNO ESPECIFICADONO ESPECIFICADO
Fecha del depósito: 13 Mayo 2020 15:32
Última modificación: 22 Mayo 2020 21:35
URI: http://eprints.uanl.mx/id/eprint/14761

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