Details
| Original language | English |
|---|---|
| Pages (from-to) | 448-455 |
| Number of pages | 8 |
| Journal | Materials Science and Engineering A |
| Volume | 746 |
| Early online date | 3 Jan 2019 |
| Publication status | Published - 11 Feb 2019 |
Abstract
In the present study, the effects of stress-induced martensite aging (SIM-aging) in twinned L1 0 -martensite on the functional properties of [001] A -oriented Ni 51 Fe 18 Ga 27 Co 4 (at%) single crystals were systematically investigated. SIM-aging of as-grown single crystals with γ-phase precipitates at T SIM = 448 K for 1 h, under a compressive stress σ SIM of 700 MPa along the [001] A ||[110] M -direction, leads to an increase in the martensitic transformation temperatures M s and A f by 60(± 3) K and induces a two-way shape memory effect with a reversible strain up to − 3.4(± 0.3)%. Moreover, the SIM-aged crystals demonstrate a 1.5- to 2-fold decrease in the thermal and stress hysteresis as compared to the as-grown crystals. The SIM-aged crystals feature a narrow stress hysteresis and the high cyclic stability of superelasticity at elevated temperature up to 420 K. Thus, these materials are attractive for use as efficient high-temperature actuators. The physical reasons for martensite stabilization in the Ni 51 Fe 18 Ga 27 Co 4 single crystals, such as the symmetry-conforming adaptation of the short-range order, the pinning of moving interfaces by defects, and the plastic deformation of γ-phase precipitates during SIM-aging, are discussed.
Keywords
- Intermetallics, Martensitic transformation, Shape memory effect, Stress-induced martensite aging, Superelasticity
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
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Materials Science and Engineering A, Vol. 746, 11.02.2019, p. 448-455.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Compressive shape memory actuation response of stress-induced martensite aged Ni 51 Fe 18 Ga 27 Co 4 single crystals
AU - Panchenko, E. Yu
AU - Timofeeva, E. E.
AU - Chumlyakov, Yu I.
AU - Osipovich, K. S.
AU - Tagiltsev, A. I.
AU - Gerstein, G.
AU - Maier, H. J.
N1 - Funding information: The study was supported by the Russian Science Foundation (grant no. 16-19-10250 ).
PY - 2019/2/11
Y1 - 2019/2/11
N2 - In the present study, the effects of stress-induced martensite aging (SIM-aging) in twinned L1 0 -martensite on the functional properties of [001] A -oriented Ni 51 Fe 18 Ga 27 Co 4 (at%) single crystals were systematically investigated. SIM-aging of as-grown single crystals with γ-phase precipitates at T SIM = 448 K for 1 h, under a compressive stress σ SIM of 700 MPa along the [001] A ||[110] M -direction, leads to an increase in the martensitic transformation temperatures M s and A f by 60(± 3) K and induces a two-way shape memory effect with a reversible strain up to − 3.4(± 0.3)%. Moreover, the SIM-aged crystals demonstrate a 1.5- to 2-fold decrease in the thermal and stress hysteresis as compared to the as-grown crystals. The SIM-aged crystals feature a narrow stress hysteresis and the high cyclic stability of superelasticity at elevated temperature up to 420 K. Thus, these materials are attractive for use as efficient high-temperature actuators. The physical reasons for martensite stabilization in the Ni 51 Fe 18 Ga 27 Co 4 single crystals, such as the symmetry-conforming adaptation of the short-range order, the pinning of moving interfaces by defects, and the plastic deformation of γ-phase precipitates during SIM-aging, are discussed.
AB - In the present study, the effects of stress-induced martensite aging (SIM-aging) in twinned L1 0 -martensite on the functional properties of [001] A -oriented Ni 51 Fe 18 Ga 27 Co 4 (at%) single crystals were systematically investigated. SIM-aging of as-grown single crystals with γ-phase precipitates at T SIM = 448 K for 1 h, under a compressive stress σ SIM of 700 MPa along the [001] A ||[110] M -direction, leads to an increase in the martensitic transformation temperatures M s and A f by 60(± 3) K and induces a two-way shape memory effect with a reversible strain up to − 3.4(± 0.3)%. Moreover, the SIM-aged crystals demonstrate a 1.5- to 2-fold decrease in the thermal and stress hysteresis as compared to the as-grown crystals. The SIM-aged crystals feature a narrow stress hysteresis and the high cyclic stability of superelasticity at elevated temperature up to 420 K. Thus, these materials are attractive for use as efficient high-temperature actuators. The physical reasons for martensite stabilization in the Ni 51 Fe 18 Ga 27 Co 4 single crystals, such as the symmetry-conforming adaptation of the short-range order, the pinning of moving interfaces by defects, and the plastic deformation of γ-phase precipitates during SIM-aging, are discussed.
KW - Intermetallics
KW - Martensitic transformation
KW - Shape memory effect
KW - Stress-induced martensite aging
KW - Superelasticity
UR - http://www.scopus.com/inward/record.url?scp=85060297245&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2019.01.004
DO - 10.1016/j.msea.2019.01.004
M3 - Article
AN - SCOPUS:85060297245
VL - 746
SP - 448
EP - 455
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
ER -