Orientation and temperature dependence of superelasticity caused by reversible - martensitic transformations in FeNiCoAlTa single crystals Academic Article uri icon

abstract

  • Reversible thermoelastic - martensite transformations (MTs) have been studied in Fe-28%Ni-17%Co-11. 5%Al-2.5%Ta (at. %) single crystals under cooling/heating and loading conditions. It is established that the precipitation of dispersed phase particles with an average size of d 5 nm leads to thermoelastic - MTs with a small temperature hysteresis (T = 20 K). The [001] oriented crystals favor the attaining of maximum superelasticity (SE) e{open}SE = 6.8%, minimum mechanical hysteresis = 130 MPa, and large SE temperature interval TSE = 130 K. In contrast, in the [111] oriented crystals, small values of e{open}SE = 2.0%, high values of = 350-400 MPa and narrow SE interval TSE = 55 K are found. 2011 Pleiades Publishing, Ltd.

published proceedings

  • Technical Physics Letters

author list (cited authors)

  • Kireeva, I. V., Chumlyakov, Y. I., Kirillov, V. A., Karaman, I., & Cesari, E.

citation count

  • 21

complete list of authors

  • Kireeva, IV||Chumlyakov, Yu I||Kirillov, VA||Karaman, I||Cesari, E

publication date

  • May 2011