Superelastic response of the FeNiCoAlTi single crystals under tension and compression

L. W. Tseng; Ji Ma; I. Karaman; S. J. Wang; Y. I. Chumlyakov

doi:10.1016/j.scriptamat.2014.12.021

Superelastic response of the FeNiCoAlTi single crystals under tension and compression

L. W. Tseng, Ji Ma, I. Karaman, S. J. Wang, Y. I. Chumlyakov

Department of Mechatronic Engineering

Research output: Contribution to journal › Article

18 Citations (Scopus)

Abstract

The superelastic response of the Fe_43.5Ni₂₈Co₁₇Al_11.5Ti_2.5 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.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Scripta Materialia
Volume	101
DOIs	https://doi.org/10.1016/j.scriptamat.2014.12.021
Publication status	Published - 2015 May 1

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All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Cite this

Tseng, L. W., Ma, J., Karaman, I., Wang, S. J., & Chumlyakov, Y. I. (2015). Superelastic response of the FeNiCoAlTi single crystals under tension and compression. Scripta Materialia, 101, 1-4. https://doi.org/10.1016/j.scriptamat.2014.12.021

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10.1016/j.scriptamat.2014.12.021