Details
| Original language | English |
|---|---|
| Pages (from-to) | 131-136 |
| Number of pages | 6 |
| Journal | Scripta materialia |
| Volume | 53 |
| Issue number | 1 |
| Publication status | Published - Jul 2005 |
| Externally published | Yes |
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.
Keywords
- Critical stress, Ferromagnetic shape memory alloy, Hysteresis, Phase transformation, Pseudoelasticity, Shape memory, Single crystals, Volumetric strain
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Materials Science(all)
- Metals and Alloys
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In: Scripta materialia, Vol. 53, No. 1, 07.2005, p. 131-136.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Transformation of Co-Ni-Al single crystals in tension
AU - Hamilton, R. F.
AU - Sehitoglu, H.
AU - Efstathiou, C.
AU - Maier, H. J.
AU - Chumlyakov, Y.
AU - Zhang, X. Y.
N1 - Funding Information: The work was supported by the National Science Foundation, Division of Civil and Mechanical Systems, grants CMS-0428428 and CMS-0332824, and Deutsche Forschungsgemeinschaft.
PY - 2005/7
Y1 - 2005/7
N2 - 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.
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.
KW - Critical stress
KW - Ferromagnetic shape memory alloy
KW - Hysteresis
KW - Phase transformation
KW - Pseudoelasticity
KW - Shape memory
KW - Single crystals
KW - Volumetric strain
UR - http://www.scopus.com/inward/record.url?scp=17444423243&partnerID=8YFLogxK
U2 - 10.1016/j.scriptamat.2005.01.032
DO - 10.1016/j.scriptamat.2005.01.032
M3 - Article
AN - SCOPUS:17444423243
VL - 53
SP - 131
EP - 136
JO - Scripta materialia
JF - Scripta materialia
SN - 1359-6462
IS - 1
ER -