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.

Funding

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.

Funders	Funder number
National Science Foundation (NSF)
Division of Materials Research	0244126
Army Research Office	DAAD 19-02-1-0261
Deutsche Forschungsgemeinschaft

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.",

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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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JO - Materials Science and Engineering: A

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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

Funding

Keywords

ASJC Scopus subject areas

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