Details
| Original language | English |
|---|---|
| Pages (from-to) | 287-295 |
| Number of pages | 9 |
| Journal | Physical mesomechanics |
| Volume | 25 |
| Issue number | 4 |
| Early online date | 24 Aug 2022 |
| Publication status | Published - Aug 2022 |
Abstract
Abstract: This work studies the effect of the stress-induced martensite aging at T = 423 K for 1 and 3 h under compressive stress |σ| = 520–590 MPa on the two-way shape memory effect, superelasticity, and elastocaloric effect in [001]L21-oriented Ni49Fe18Ga27Co6 ferromagnetic alloy single crystals containing dispersed γ(γ′)-phase particles. Experiments showed that stress-induced martensite aging causes the two-way shape memory effect, an increase in martensite start temperatures by 64–89 K, and a decrease in strains and stress hysteresis under superelasticity conditions during compression. As the stress-induced martensite aging time increases from 1 to 3 h, the reversible strain increases from 4.1 to 5.1% with the onset of the two-way shape memory effect, and the temperature ranges of forward and reverse martensitic transformation reduce to 1–2 K. It is shown for the first time that as a result of stress-induced martensite aging for 3 h under stress |σ| = 590 MPa the critical stresses of the martensite formation σMs decreases by a factor of 2.5 and stress hysteresis ∆σ decreases by a factor of 1.4 under superelasticity conditions compared to the initial crystals. This contributes to a higher efficiency and cyclic stability of the elastocaloric effect with adiabatic cooling ∆Tad = 5.0 ± 0.5 K in [001]L21-oriented Ni49Fe18Ga27Co6 single crystals after stress-induced martensite aging for 3 h.
Keywords
- elastocaloric effect, single crystals, stress-induced martensite aging, superelasticity, thermoelastic martensitic transformations, 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
- Physics and Astronomy(all)
- Surfaces and Interfaces
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In: Physical mesomechanics, Vol. 25, No. 4, 08.2022, p. 287-295.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Effect of the Stress-Induced Martensite Aging Time on the Functional Properties of Heterophase Ni49Fe18Ga27Co6 Single Crystals
AU - Tokhmetova, A. B.
AU - Panchenko, E. Yu
AU - Yanushonite, E. I.
AU - Zherdeva, M. V.
AU - Kurlevskaya, I. D.
AU - Chumlyakov, Yu I.
AU - Gerstein, G.
AU - Maier, H. J.
PY - 2022/8
Y1 - 2022/8
N2 - Abstract: This work studies the effect of the stress-induced martensite aging at T = 423 K for 1 and 3 h under compressive stress |σ| = 520–590 MPa on the two-way shape memory effect, superelasticity, and elastocaloric effect in [001]L21-oriented Ni49Fe18Ga27Co6 ferromagnetic alloy single crystals containing dispersed γ(γ′)-phase particles. Experiments showed that stress-induced martensite aging causes the two-way shape memory effect, an increase in martensite start temperatures by 64–89 K, and a decrease in strains and stress hysteresis under superelasticity conditions during compression. As the stress-induced martensite aging time increases from 1 to 3 h, the reversible strain increases from 4.1 to 5.1% with the onset of the two-way shape memory effect, and the temperature ranges of forward and reverse martensitic transformation reduce to 1–2 K. It is shown for the first time that as a result of stress-induced martensite aging for 3 h under stress |σ| = 590 MPa the critical stresses of the martensite formation σMs decreases by a factor of 2.5 and stress hysteresis ∆σ decreases by a factor of 1.4 under superelasticity conditions compared to the initial crystals. This contributes to a higher efficiency and cyclic stability of the elastocaloric effect with adiabatic cooling ∆Tad = 5.0 ± 0.5 K in [001]L21-oriented Ni49Fe18Ga27Co6 single crystals after stress-induced martensite aging for 3 h.
AB - Abstract: This work studies the effect of the stress-induced martensite aging at T = 423 K for 1 and 3 h under compressive stress |σ| = 520–590 MPa on the two-way shape memory effect, superelasticity, and elastocaloric effect in [001]L21-oriented Ni49Fe18Ga27Co6 ferromagnetic alloy single crystals containing dispersed γ(γ′)-phase particles. Experiments showed that stress-induced martensite aging causes the two-way shape memory effect, an increase in martensite start temperatures by 64–89 K, and a decrease in strains and stress hysteresis under superelasticity conditions during compression. As the stress-induced martensite aging time increases from 1 to 3 h, the reversible strain increases from 4.1 to 5.1% with the onset of the two-way shape memory effect, and the temperature ranges of forward and reverse martensitic transformation reduce to 1–2 K. It is shown for the first time that as a result of stress-induced martensite aging for 3 h under stress |σ| = 590 MPa the critical stresses of the martensite formation σMs decreases by a factor of 2.5 and stress hysteresis ∆σ decreases by a factor of 1.4 under superelasticity conditions compared to the initial crystals. This contributes to a higher efficiency and cyclic stability of the elastocaloric effect with adiabatic cooling ∆Tad = 5.0 ± 0.5 K in [001]L21-oriented Ni49Fe18Ga27Co6 single crystals after stress-induced martensite aging for 3 h.
KW - elastocaloric effect
KW - single crystals
KW - stress-induced martensite aging
KW - superelasticity
KW - thermoelastic martensitic transformations
KW - two-way shape memory effect
UR - http://www.scopus.com/inward/record.url?scp=85137052251&partnerID=8YFLogxK
U2 - 10.1134/S1029959922040026
DO - 10.1134/S1029959922040026
M3 - Article
AN - SCOPUS:85137052251
VL - 25
SP - 287
EP - 295
JO - Physical mesomechanics
JF - Physical mesomechanics
SN - 1029-9599
IS - 4
ER -