Thermally and stress-induced martensitic transformation in Co-Ni-Al ferromagnetic shape memory alloy single crystals

D. Meyer; H. J. Maier; J. Dadda; I. Karaman; H. E. Karaca

doi:10.1016/j.msea.2006.05.038

Thermally and stress-induced martensitic transformation in Co-Ni-Al ferromagnetic shape memory alloy single crystals

D. Meyer, H. J. Maier, J. Dadda, I. Karaman, H. E. Karaca

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

In the present study, the shape memory characteristics of Co₃₈Ni₃₃Al₂₉ (numbers indicate at.%) alloy single crystals are investigated. Transformation behavior under constant stress levels, two-way shape memory behavior, the effect of cyclic deformation and pseudoelasticity as a function of strain and temperature were studied. The single crystals demonstrate large two-way shape memory strain, a near perfect pseudoelastic behavior with up to 4% pseudoelastic strain, low pseudoelastic stress hysteresis, a large pseudoelastic temperature window and high resistance for dislocation slip.

Original language	English
Pages (from-to)	875-878
Number of pages	4
Journal	Materials Science and Engineering: A
Volume	438-440
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.msea.2006.05.038
State	Published - Nov 25 2006

Bibliographical note

Funding Information:
This work was supported by Deutsche Forschungsgemeinschaft, Army Research Office, Contract No. DAAD 19-02-1-0261, and National Science Foundation, Division of Materials Research, Contract No. 0244126.

Keywords

CoNiAl
Martensitic phase transformation
Pseudoelasticity
Shape memory

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2006.05.038

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title = "Thermally and stress-induced martensitic transformation in Co-Ni-Al ferromagnetic shape memory alloy single crystals",

abstract = "In the present study, the shape memory characteristics of Co38Ni33Al29 (numbers indicate at.%) alloy single crystals are investigated. Transformation behavior under constant stress levels, two-way shape memory behavior, the effect of cyclic deformation and pseudoelasticity as a function of strain and temperature were studied. The single crystals demonstrate large two-way shape memory strain, a near perfect pseudoelastic behavior with up to 4% pseudoelastic strain, low pseudoelastic stress hysteresis, a large pseudoelastic temperature window and high resistance for dislocation slip.",

keywords = "CoNiAl, Martensitic phase transformation, Pseudoelasticity, Shape memory",

author = "D. Meyer and Maier, {H. J.} and J. Dadda and I. Karaman and Karaca, {H. E.}",

note = "Funding Information: This work was supported by Deutsche Forschungsgemeinschaft, Army Research Office, Contract No. DAAD 19-02-1-0261, and National Science Foundation, Division of Materials Research, Contract No. 0244126.",

year = "2006",

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doi = "10.1016/j.msea.2006.05.038",

language = "English",

volume = "438-440",

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AU - Meyer, D.

AU - Maier, H. J.

AU - Dadda, J.

AU - Karaman, I.

AU - Karaca, H. E.

N1 - Funding Information: This work was supported by Deutsche Forschungsgemeinschaft, Army Research Office, Contract No. DAAD 19-02-1-0261, and National Science Foundation, Division of Materials Research, Contract No. 0244126.

PY - 2006/11/25

Y1 - 2006/11/25

N2 - In the present study, the shape memory characteristics of Co38Ni33Al29 (numbers indicate at.%) alloy single crystals are investigated. Transformation behavior under constant stress levels, two-way shape memory behavior, the effect of cyclic deformation and pseudoelasticity as a function of strain and temperature were studied. The single crystals demonstrate large two-way shape memory strain, a near perfect pseudoelastic behavior with up to 4% pseudoelastic strain, low pseudoelastic stress hysteresis, a large pseudoelastic temperature window and high resistance for dislocation slip.

AB - In the present study, the shape memory characteristics of Co38Ni33Al29 (numbers indicate at.%) alloy single crystals are investigated. Transformation behavior under constant stress levels, two-way shape memory behavior, the effect of cyclic deformation and pseudoelasticity as a function of strain and temperature were studied. The single crystals demonstrate large two-way shape memory strain, a near perfect pseudoelastic behavior with up to 4% pseudoelastic strain, low pseudoelastic stress hysteresis, a large pseudoelastic temperature window and high resistance for dislocation slip.

KW - CoNiAl

KW - Martensitic phase transformation

KW - Pseudoelasticity

KW - Shape memory

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M3 - Article

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JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - SPEC. ISS.

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Thermally and stress-induced martensitic transformation in Co-Ni-Al ferromagnetic shape memory alloy single crystals

Abstract

Bibliographical note

Keywords

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