Transformaciones de fase y comportamiento mecánico bajo cargas cíclicas de una aleación binaria ni-ti


Authors

  • Luis Emilio Forero G.
  • Wilson Vesga Rivera

Abstract

El comportamiento superelástico de microtubos de una aleación policristalina de Ni-Ti se evaluó mediante ensayos en tensión uniaxial en carga/descarga a diferentes porcentajes de deformación a 37 º. Se evidencio que la superelasticidad es afectada por la presencia de una deformación residual que se incrementa a medida que aumenta el porcentaje de deformación. Los factores que promueven esta deformación están relacionados con la presencia de pequeños precipitados de Ti-Ni (Ti3Ni4) y la formación de una fase R que impiden la transformación total de la martensita durante el demaclado. Este comportamiento disminuye la resistencia a la fatiga de la aleación de Ni-Ti bajo cargas cíclicas.

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Published

2007-07-30

How to Cite

Forero G., L. E., & Vesga Rivera, W. (2007). Transformaciones de fase y comportamiento mecánico bajo cargas cíclicas de una aleación binaria ni-ti. Scientia Et Technica, 1(36). Retrieved from https://revistas.utp.edu.co/index.php/revistaciencia/article/view/5065

Issue

Vol. 1 No. 36 (2007)

Section

Mecánica

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