Variation in the structure of the amorphous NiTi-based alloys during mechanical vibrations

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Variation in the structure of the amorphous NiTi-based alloys during mechanical vibrations. / Belyaev, S.; Rubanik, V.; Resnina, N.; Rubanik, V.; Ubyivovk, E.; Demidova, E.; Uzhekina, A.; Kasatkin, I.; Shelyakov, A.

In: Journal of Non-Crystalline Solids, Vol. 542, 120101, 15.08.2020.

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

Author

Belyaev, S. ; Rubanik, V. ; Resnina, N. ; Rubanik, V. ; Ubyivovk, E. ; Demidova, E. ; Uzhekina, A. ; Kasatkin, I. ; Shelyakov, A. / Variation in the structure of the amorphous NiTi-based alloys during mechanical vibrations. In: Journal of Non-Crystalline Solids. 2020 ; Vol. 542.

BibTeX

@article{a8450639ff7d4c0888cb64d1e8a2bde8,

title = "Variation in the structure of the amorphous NiTi-based alloys during mechanical vibrations",

abstract = "The aim of the present work is to study the influence of the vibration temperature, frequency and amplitude on the structure of amorphous NiTi-based shape memory alloys. The Ti40.7Hf9.5Ni44.8Cu5, Ti40.7Hf9.5Ni41.8Cu8 and Ti50Ni25Cu25 melt-spun amorphous thin ribbons were subjected to low-frequency mechanical vibrations in a Dynamical Mechanical Analyser or ultrasonic vibrations in anvil. The results of the study have shown that the mechanical vibrations lead to a structural relaxation and initiate the beginning stage of the crystallisation in the amorphous NiTi-based shape memory alloys. During the vibrations with an amplitude of 4 μm, crystalline clusters, with a size of 4–6 nm, appear in the amorphous matrix. On an increase in the vibration temperature or frequency, the size of the crystalline clusters hardly changes. The clusters that form during the vibrations do not influence the crystallisation temperature but decrease the crystallisation enthalpy.",

keywords = "Crystallisation, HRTEM, Mechanical vibrations, Metallic glass, Relaxation, Metallic glass, Mechanical vibrations, Crystallisation, Relaxation, HRTEM, ULTRASOUND, CRYSTALLIZATION, TEMPERATURE, RELAXATION, TRANSITION, INITIATION",

author = "S. Belyaev and V. Rubanik and N. Resnina and V. Rubanik and E. Ubyivovk and E. Demidova and A. Uzhekina and I. Kasatkin and A. Shelyakov",

year = "2020",

month = aug,

day = "15",

doi = "10.1016/j.jnoncrysol.2020.120101",

language = "English",

volume = "542",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Variation in the structure of the amorphous NiTi-based alloys during mechanical vibrations

AU - Belyaev, S.

AU - Rubanik, V.

AU - Resnina, N.

AU - Rubanik, V.

AU - Ubyivovk, E.

AU - Demidova, E.

AU - Uzhekina, A.

AU - Kasatkin, I.

AU - Shelyakov, A.

PY - 2020/8/15

Y1 - 2020/8/15

N2 - The aim of the present work is to study the influence of the vibration temperature, frequency and amplitude on the structure of amorphous NiTi-based shape memory alloys. The Ti40.7Hf9.5Ni44.8Cu5, Ti40.7Hf9.5Ni41.8Cu8 and Ti50Ni25Cu25 melt-spun amorphous thin ribbons were subjected to low-frequency mechanical vibrations in a Dynamical Mechanical Analyser or ultrasonic vibrations in anvil. The results of the study have shown that the mechanical vibrations lead to a structural relaxation and initiate the beginning stage of the crystallisation in the amorphous NiTi-based shape memory alloys. During the vibrations with an amplitude of 4 μm, crystalline clusters, with a size of 4–6 nm, appear in the amorphous matrix. On an increase in the vibration temperature or frequency, the size of the crystalline clusters hardly changes. The clusters that form during the vibrations do not influence the crystallisation temperature but decrease the crystallisation enthalpy.

AB - The aim of the present work is to study the influence of the vibration temperature, frequency and amplitude on the structure of amorphous NiTi-based shape memory alloys. The Ti40.7Hf9.5Ni44.8Cu5, Ti40.7Hf9.5Ni41.8Cu8 and Ti50Ni25Cu25 melt-spun amorphous thin ribbons were subjected to low-frequency mechanical vibrations in a Dynamical Mechanical Analyser or ultrasonic vibrations in anvil. The results of the study have shown that the mechanical vibrations lead to a structural relaxation and initiate the beginning stage of the crystallisation in the amorphous NiTi-based shape memory alloys. During the vibrations with an amplitude of 4 μm, crystalline clusters, with a size of 4–6 nm, appear in the amorphous matrix. On an increase in the vibration temperature or frequency, the size of the crystalline clusters hardly changes. The clusters that form during the vibrations do not influence the crystallisation temperature but decrease the crystallisation enthalpy.

KW - Crystallisation

KW - HRTEM

KW - Mechanical vibrations

KW - Metallic glass

KW - Relaxation

KW - Metallic glass

KW - Mechanical vibrations

KW - Crystallisation

KW - Relaxation

KW - HRTEM

KW - ULTRASOUND

KW - CRYSTALLIZATION

KW - TEMPERATURE

KW - RELAXATION

KW - TRANSITION

KW - INITIATION

UR - http://www.scopus.com/inward/record.url?scp=85084602980&partnerID=8YFLogxK

U2 - 10.1016/j.jnoncrysol.2020.120101

DO - 10.1016/j.jnoncrysol.2020.120101

M3 - Article

AN - SCOPUS:85084602980

VL - 542

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

M1 - 120101

ER -

ID: 53641206