Effect of aging on the superelastic response of a single crystalline FeNiCoAlTa shape memory alloy

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.

authors

• Karaman, Ibrahim

published proceedings

• SCRIPTA MATERIALIA

author list (cited authors)

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

citation count

• 36

complete list of authors

• Evirgen, A||Ma, J||Karaman, I||Luo, ZP||Chumlyakov, YI

publication date

• September 2012

publisher

• Elsevier  Publisher

published in

• Scripta Materialia  Journal

keywords

• Iron-based Shape Memory Alloys
• Martensitic Transformation
• Precipitation
• Shape Memory Effect
• Superelasticity

Digital Object Identifier (DOI)

• 10.1016/j.scriptamat.2012.06.006

start page

• 475

end page

• 478

volume

• 67

issue

• 5

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.scriptamat.2012.06.006