Superelastic response of the FeNiCoAlTi single crystals under tension and compression

abstract

• 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. The superelastic response of the Fe43.5Ni28Co17Al11.5Ti2.5 single crystalline shape memory alloy was investigated along the [1 0 0] orientation in both tension and compression. A fully recoverable superelastic loop was observed under both tension and compression within the temperature range of -80 to 0 C. At higher temperatures, while up to 6% superelastic strain was attainable in tension, the superelasticity deteriorates quickly under compressive strains exceeding 2%. The asymmetric response is likely caused by different numbers of stress-activated martensite variants in tension and compression.

authors

• Karaman, Ibrahim

published proceedings

• SCRIPTA MATERIALIA

author list (cited authors)

• Tseng, L. W., Ma, J. i., Karaman, I., Wang, S. J., & Chumlyakov, Y. I.

citation count

• 29

complete list of authors

• Tseng, LW||Ma, Ji||Karaman, I||Wang, SJ||Chumlyakov, YI

publication date

• May 2015

publisher

• Elsevier  Publisher

published in

• Scripta Materialia  Journal

keywords

• FeNiCoAlTi
• Iron-based Shape Memory Alloys
• Martensite Variants
• Superelastic Strain
• Superelasticity

Digital Object Identifier (DOI)

• 10.1016/j.scriptamat.2014.12.021

start page

• 1

end page

• 4

volume

• 101

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.scriptamat.2014.12.021