Transformation of Co-Ni-Al single crystals in tension

Reginald Felix Hamilton, H. Sehitoglu, C. Efstathiou, H. J. Maier, Y. Chumlyakov, X. Y. Zhang

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

We present for the first time pseudoelasticity and shape memory results on Co-Ni-Al single crystals in tension. The experimental transformation strains approached 6% in tension in the [1 1 5] orientation. Despite the considerable volume change (0.0447), the transformation exhibits remarkable pseudoelasticity and shape memory recoverability in tension. A theoretical treatment is presented to explain the tension compression asymmetry in the stress-strain response, the change in transformation hysteresis with stress, and the role of secondary phase on the transformation temperatures.

Original languageEnglish (US)
Pages (from-to)131-136
Number of pages6
JournalScripta Materialia
Volume53
Issue number1
DOIs
StatePublished - Jul 1 2005

Fingerprint

Shape memory effect
Single crystals
single crystals
Hysteresis
recoverability
hysteresis
asymmetry
Temperature
temperature

All Science Journal Classification (ASJC) codes

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

Cite this

Hamilton, R. F., Sehitoglu, H., Efstathiou, C., Maier, H. J., Chumlyakov, Y., & Zhang, X. Y. (2005). Transformation of Co-Ni-Al single crystals in tension. Scripta Materialia, 53(1), 131-136. https://doi.org/10.1016/j.scriptamat.2005.01.032
Hamilton, Reginald Felix ; Sehitoglu, H. ; Efstathiou, C. ; Maier, H. J. ; Chumlyakov, Y. ; Zhang, X. Y. / Transformation of Co-Ni-Al single crystals in tension. In: Scripta Materialia. 2005 ; Vol. 53, No. 1. pp. 131-136.
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Hamilton, RF, Sehitoglu, H, Efstathiou, C, Maier, HJ, Chumlyakov, Y & Zhang, XY 2005, 'Transformation of Co-Ni-Al single crystals in tension', Scripta Materialia, vol. 53, no. 1, pp. 131-136. https://doi.org/10.1016/j.scriptamat.2005.01.032

Transformation of Co-Ni-Al single crystals in tension. / Hamilton, Reginald Felix; Sehitoglu, H.; Efstathiou, C.; Maier, H. J.; Chumlyakov, Y.; Zhang, X. Y.

In: Scripta Materialia, Vol. 53, No. 1, 01.07.2005, p. 131-136.

Research output: Contribution to journalArticle

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AU - Hamilton, Reginald Felix

AU - Sehitoglu, H.

AU - Efstathiou, C.

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AU - Chumlyakov, Y.

AU - Zhang, X. Y.

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AB - We present for the first time pseudoelasticity and shape memory results on Co-Ni-Al single crystals in tension. The experimental transformation strains approached 6% in tension in the [1 1 5] orientation. Despite the considerable volume change (0.0447), the transformation exhibits remarkable pseudoelasticity and shape memory recoverability in tension. A theoretical treatment is presented to explain the tension compression asymmetry in the stress-strain response, the change in transformation hysteresis with stress, and the role of secondary phase on the transformation temperatures.

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Hamilton RF, Sehitoglu H, Efstathiou C, Maier HJ, Chumlyakov Y, Zhang XY. Transformation of Co-Ni-Al single crystals in tension. Scripta Materialia. 2005 Jul 1;53(1):131-136. https://doi.org/10.1016/j.scriptamat.2005.01.032