Shape memory effect in Ti-Ta-Zr alloys

T. Peradze, I. Stamateli, J. Cederstrom, T. Berikashvili, A. Razov, K. Gorgadze

Результат исследований: Научные публикации в периодических изданияхстатья

11 Цитирования (Scopus)


The degree of recoverable strain, reactive stress and pseudoelasticity of some Ti-Ta-Zr alloys were investigated. The measurement technique involved differential calorimetry, estimation of friction and evaluation of recoverable torsion strain. The alloys were quenched from different temperatures of the β-phase area and subjected to additional thermal and mechanical treatment required for subsequent examination. The degree of recoverable strain was measured on custom-made unit. The samples have been heated by electrical current and using a furnace. Initial deformation of the specimens was achieved by torsion. For all of the alloys the shape recovery was not less than 90-98% for initial strain up to 7-9%. M s and A s values for the alloys range in 298-433 K and 523-673 K interval. These allowed to conventionally consider the shape memory effect in these alloys as a "high temperature" (respectively to TiNi) phenomenon. The values of the reactive stress induced by reverse martensite transformation in the alloys was measured to be 300-550 MPa. After 3-4 cycles the pseudoelasticity of the alloys (strain-stress cycled at room temperature), for the initial strain - 3.5-4%, comes up to 100%.

Язык оригиналаанглийский
Страницы (с-по)39-43
Число страниц5
ЖурналInternational Journal of Applied Electromagnetics and Mechanics
Номер выпуска1-2
СостояниеОпубликовано - 17 июл 2006

Предметные области Scopus

  • Электроника, оптика и магнитные материалы
  • Физика конденсатов
  • Сопротивление материалов
  • Общее машиностроение
  • Электротехника и электроника

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  • Цитировать

    Peradze, T., Stamateli, I., Cederstrom, J., Berikashvili, T., Razov, A., & Gorgadze, K. (2006). Shape memory effect in Ti-Ta-Zr alloys. International Journal of Applied Electromagnetics and Mechanics, 23(1-2), 39-43.