Abstract
The strain variations induced by conventional heating or ultrasonic vibrations in the Ni – 49.8 at.% Ti shape memory alloy after different preliminary deformation (from 5 to 30%) in the martensite state were studied. It was found that if the residual strain was 16% or less, then the shape memory effect value did not depend on the initiation method. The strain recovery was induced by ultrasonic vibrations during 20 s and occurred at lower temperatures than during conventional heating, due to partially suppression of the martensite stabilisation effect. The ultrasonic vibrations did not influence the plastic strain but they decreased the value of the two-way shape memory effect due to the dislocation rearrangement. The results of the study showed that the USVs might be successfully used for the initiation of the shape memory effect in actuators without heat sources.
| Original language | English |
|---|---|
| Pages (from-to) | 1-3 |
| Number of pages | 3 |
| Journal | Sensors and Actuators, A: Physical |
| Volume | 286 |
| DOIs | |
| State | Published - 1 Feb 2019 |
Keywords
- Martensite stabilization effect
- Shape memory alloy
- Strain recovery
- Ultrasonic vibrations
Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Instrumentation
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Metals and Alloys
- Electrical and Electronic Engineering
Cite this
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Initiation of the shape memory effect by temperature variation or ultrasonic vibrations in the NiTi shape memory alloy after different preliminary deformation. / Lesota, A.; Sibirev, A.; Rubanik, V.; Resnina, N.; Belyaev, S.
In: Sensors and Actuators, A: Physical, Vol. 286, 01.02.2019, p. 1-3.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Initiation of the shape memory effect by temperature variation or ultrasonic vibrations in the NiTi shape memory alloy after different preliminary deformation
AU - Lesota, A.
AU - Sibirev, A.
AU - Rubanik, V.
AU - Resnina, N.
AU - Belyaev, S.
PY - 2019/2/1
Y1 - 2019/2/1
N2 - The strain variations induced by conventional heating or ultrasonic vibrations in the Ni – 49.8 at.% Ti shape memory alloy after different preliminary deformation (from 5 to 30%) in the martensite state were studied. It was found that if the residual strain was 16% or less, then the shape memory effect value did not depend on the initiation method. The strain recovery was induced by ultrasonic vibrations during 20 s and occurred at lower temperatures than during conventional heating, due to partially suppression of the martensite stabilisation effect. The ultrasonic vibrations did not influence the plastic strain but they decreased the value of the two-way shape memory effect due to the dislocation rearrangement. The results of the study showed that the USVs might be successfully used for the initiation of the shape memory effect in actuators without heat sources.
AB - The strain variations induced by conventional heating or ultrasonic vibrations in the Ni – 49.8 at.% Ti shape memory alloy after different preliminary deformation (from 5 to 30%) in the martensite state were studied. It was found that if the residual strain was 16% or less, then the shape memory effect value did not depend on the initiation method. The strain recovery was induced by ultrasonic vibrations during 20 s and occurred at lower temperatures than during conventional heating, due to partially suppression of the martensite stabilisation effect. The ultrasonic vibrations did not influence the plastic strain but they decreased the value of the two-way shape memory effect due to the dislocation rearrangement. The results of the study showed that the USVs might be successfully used for the initiation of the shape memory effect in actuators without heat sources.
KW - Martensite stabilization effect
KW - Shape memory alloy
KW - Strain recovery
KW - Ultrasonic vibrations
UR - http://www.scopus.com/inward/record.url?scp=85058936118&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2018.12.016
DO - 10.1016/j.sna.2018.12.016
M3 - Article
VL - 286
SP - 1
EP - 3
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
SN - 0924-4247
ER -