Details
| Original language | English |
|---|---|
| Article number | 140166 |
| Journal | Materials Science and Engineering A |
| Volume | 799 |
| Early online date | 27 Aug 2020 |
| Publication status | Published - 2 Jan 2021 |
Abstract
A stable tensile two-way shape memory effect with a strain of (+7.0 ± 0.3) % along the [001]B2-direction upon stress-induced martensite ageing was obtained for single crystals of an Co35Ni35Al30 ferromagnetic alloy. Stress-induced martensite ageing at 398 K for 1.0 h under a compressive stress of 500 MPa along the [110]B2-direction led to the stabilization of L10-martensite variant, which contributes to sample elongation along the [001]B2-direction during stress-free cooling and reversible recovery upon subsequent heating. The tensile two-way shape memory effect was observed to be stable during stress-free thermal cycling through the phase transformation range. The characteristics of the two-way shape memory effect (reversible strain, martensitic transformation temperatures, and thermal hysteresis) did not change during 100 thermal cycles. The characteristics of the tensile two-way shape memory effect remain unchanged even after superelasticity cycling under a compressive stress of 1025 MPa applied along the [001]B2-direction at a temperature of 423 K, which is close to the stress-induced martensite ageing temperature.
Keywords
- Cyclic stability, Martensite stabilization, Martensitic transformation, Stress-induced martensite ageing, Two-way shape memory effect
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
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In: Materials Science and Engineering A, Vol. 799, 140166, 02.01.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - On the high cyclic stability of the tensile two-way shape memory effect in stress-induced martensite aged Co35Ni35Al30 single crystals
AU - Eftifeeva, Anna
AU - Panchenko, Elena
AU - Chumlyakov, Yuriy
AU - Yanushonite, Eleonora
AU - Gerstein, Gregory
AU - Maier, Hans-Jürgen
N1 - Funding Information: The electron microscopy studies were carried out on the equipment of the Krasnoyarsk Regional Center for Collective Use of the FRC KSC SB RAS. This work was supported by the Mendeleev program of Tomsk State University [program number 8.1.06.2018, Russia ] and the German Research Foundation [DFG, project number 388671975 , Germany].
PY - 2021/1/2
Y1 - 2021/1/2
N2 - A stable tensile two-way shape memory effect with a strain of (+7.0 ± 0.3) % along the [001]B2-direction upon stress-induced martensite ageing was obtained for single crystals of an Co35Ni35Al30 ferromagnetic alloy. Stress-induced martensite ageing at 398 K for 1.0 h under a compressive stress of 500 MPa along the [110]B2-direction led to the stabilization of L10-martensite variant, which contributes to sample elongation along the [001]B2-direction during stress-free cooling and reversible recovery upon subsequent heating. The tensile two-way shape memory effect was observed to be stable during stress-free thermal cycling through the phase transformation range. The characteristics of the two-way shape memory effect (reversible strain, martensitic transformation temperatures, and thermal hysteresis) did not change during 100 thermal cycles. The characteristics of the tensile two-way shape memory effect remain unchanged even after superelasticity cycling under a compressive stress of 1025 MPa applied along the [001]B2-direction at a temperature of 423 K, which is close to the stress-induced martensite ageing temperature.
AB - A stable tensile two-way shape memory effect with a strain of (+7.0 ± 0.3) % along the [001]B2-direction upon stress-induced martensite ageing was obtained for single crystals of an Co35Ni35Al30 ferromagnetic alloy. Stress-induced martensite ageing at 398 K for 1.0 h under a compressive stress of 500 MPa along the [110]B2-direction led to the stabilization of L10-martensite variant, which contributes to sample elongation along the [001]B2-direction during stress-free cooling and reversible recovery upon subsequent heating. The tensile two-way shape memory effect was observed to be stable during stress-free thermal cycling through the phase transformation range. The characteristics of the two-way shape memory effect (reversible strain, martensitic transformation temperatures, and thermal hysteresis) did not change during 100 thermal cycles. The characteristics of the tensile two-way shape memory effect remain unchanged even after superelasticity cycling under a compressive stress of 1025 MPa applied along the [001]B2-direction at a temperature of 423 K, which is close to the stress-induced martensite ageing temperature.
KW - Cyclic stability
KW - Martensite stabilization
KW - Martensitic transformation
KW - Stress-induced martensite ageing
KW - Two-way shape memory effect
UR - http://www.scopus.com/inward/record.url?scp=85089947881&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2020.140166
DO - 10.1016/j.msea.2020.140166
M3 - Article
AN - SCOPUS:85089947881
VL - 799
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
M1 - 140166
ER -