Effect of aging on the superelastic response of a single crystalline FeNiCoAlTa shape memory alloy Academic Article uri icon

abstract

  • This study reports the effect of selected aging treatments on the superelastic response of 〈1 0 0〉-oriented Fe-28% Ni-17% Co-11.5% Al-2.5% Ta (at.%) single crystals in tension. A smaller precipitate size and lower precipitate fraction of the samples aged at 700 °C for 7 h leads to lower transformation temperatures, a wide temperature range for superelasticity and higher transformation stress levels as compared to the samples aged at 600 °C for 90 h. Both aging conditions results in fully recoverable transformation strain of 3.4% in tension. © 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

author list (cited authors)

  • Evirgen, A., Ma, J., Karaman, I., Luo, Z. P., & Chumlyakov, Y. I.

citation count

  • 32

publication date

  • September 2012