Damage of the martensite interfaces as the mechanism of the martensite stabilization effect in the NiTi shape memory alloys

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Damage of the martensite interfaces as the mechanism of the martensite stabilization effect in the NiTi shape memory alloys. / Belyaev, S.; Resnina, N.; Ponikarova, I.; Iaparova, E.; Rakhimov, T.; Tabachkova, N.; Андреев, Владимир Александрович.

In: Journal of Alloys and Compounds, Vol. 921, 166189, 15.11.2022.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{6fa9db8ece3946779ddc288c236cb005,

title = "Damage of the martensite interfaces as the mechanism of the martensite stabilization effect in the NiTi shape memory alloys",

abstract = "The aim of the paper was a comprehensive experimental study of the martensite stabilization effect (MSE) in NiTi alloys under various conditions to find the mechanism behind this phenomenon. The MSE was studied in the quenched Ni50Ti50 and Ni51Ti49 alloys subjected to pre-deformation to various strains in three ways: deformation in the martensite state, cooling under stress through a temperature range of the forward transformation and deformation in the austenite state due to the stress-induced martensite formation. It was found that after pre-deformation by the martensite reorientation, the MSE was observed even after a small pre-strain. After pre-deformation by cooling under stress or by stress-induced transformation, the MSE was small if the pre-strain was less than 5%; otherwise, the value of this effect was significant. A new mechanism of the martensite stabilization effect was considered. It was assumed that the damage to the martensite boundaries during the pre-deformation (without plastic strain) decreased their mobility and a larger thermodynamic force needed to be provided to move the interfaces during the reverse transformation.",

keywords = "Damage of the interfaces, Martensite stabilization effect, NiTi, Phase transformation, Shape memory, TEM",

author = "S. Belyaev and N. Resnina and I. Ponikarova and E. Iaparova and T. Rakhimov and N. Tabachkova and Андреев, {Владимир Александрович}",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = nov,

day = "15",

doi = "10.1016/j.jallcom.2022.166189",

language = "English",

volume = "921",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Damage of the martensite interfaces as the mechanism of the martensite stabilization effect in the NiTi shape memory alloys

AU - Belyaev, S.

AU - Resnina, N.

AU - Ponikarova, I.

AU - Iaparova, E.

AU - Rakhimov, T.

AU - Tabachkova, N.

AU - Андреев, Владимир Александрович

PY - 2022/11/15

Y1 - 2022/11/15

N2 - The aim of the paper was a comprehensive experimental study of the martensite stabilization effect (MSE) in NiTi alloys under various conditions to find the mechanism behind this phenomenon. The MSE was studied in the quenched Ni50Ti50 and Ni51Ti49 alloys subjected to pre-deformation to various strains in three ways: deformation in the martensite state, cooling under stress through a temperature range of the forward transformation and deformation in the austenite state due to the stress-induced martensite formation. It was found that after pre-deformation by the martensite reorientation, the MSE was observed even after a small pre-strain. After pre-deformation by cooling under stress or by stress-induced transformation, the MSE was small if the pre-strain was less than 5%; otherwise, the value of this effect was significant. A new mechanism of the martensite stabilization effect was considered. It was assumed that the damage to the martensite boundaries during the pre-deformation (without plastic strain) decreased their mobility and a larger thermodynamic force needed to be provided to move the interfaces during the reverse transformation.

AB - The aim of the paper was a comprehensive experimental study of the martensite stabilization effect (MSE) in NiTi alloys under various conditions to find the mechanism behind this phenomenon. The MSE was studied in the quenched Ni50Ti50 and Ni51Ti49 alloys subjected to pre-deformation to various strains in three ways: deformation in the martensite state, cooling under stress through a temperature range of the forward transformation and deformation in the austenite state due to the stress-induced martensite formation. It was found that after pre-deformation by the martensite reorientation, the MSE was observed even after a small pre-strain. After pre-deformation by cooling under stress or by stress-induced transformation, the MSE was small if the pre-strain was less than 5%; otherwise, the value of this effect was significant. A new mechanism of the martensite stabilization effect was considered. It was assumed that the damage to the martensite boundaries during the pre-deformation (without plastic strain) decreased their mobility and a larger thermodynamic force needed to be provided to move the interfaces during the reverse transformation.

KW - Damage of the interfaces

KW - Martensite stabilization effect

KW - NiTi

KW - Phase transformation

KW - Shape memory

KW - TEM

UR - http://www.scopus.com/inward/record.url?scp=85133695800&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2022.166189

DO - 10.1016/j.jallcom.2022.166189

M3 - Article

AN - SCOPUS:85133695800

VL - 921

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

M1 - 166189

ER -

ID: 97287658