Estudio experimental del efecto termomecanico de las transformaciones de fase en las aleaciones ni-ti “nitinol”


Authors

  • Wilson Vesga R.
  • Luis Emilio Forero G.
  • Freddy Rincón Osorio

Abstract

El Nitinol es una de las aleaciones con mayor aplicación en el campo medico por su memoria de forma y superelasticidad. Bajo tensión uniaxial se evaluó el comportamiento superelástico de microtubos de una aleación de Ni-Ti a 23 °C y 37 °C. Se establecieron los factores que pueden afectar su superelasticidad, encontrándose que la presencia de pequeños precipitados de Ti-Ni (Ti3Ni4) puede ocasionar deformación residual, impidiendo la transformación reversible total de la martensita durante el demaclado. Este comportamiento también afectara su resistencia a la fatiga. Adicionalmente, se comprobó mediante calorimetría diferencial la presencia de una fase R en esta aleación.

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Published

2007-07-30

How to Cite

Vesga R., W., Forero G., L. E., & Rincón Osorio, F. (2007). Estudio experimental del efecto termomecanico de las transformaciones de fase en las aleaciones ni-ti “nitinol”. Scientia Et Technica, 1(36). Retrieved from https://revistas.utp.edu.co/index.php/revistaciencia/article/view/5131

Issue

Vol. 1 No. 36 (2007)

Section

Mecánica

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