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45 results on '"Shelyakov, A.V."'

23. A composite functional material with shape memory effect exhibiting a giant reversible straining

Author

Zakharov, D.I., Kirilin, A.G., Koledov, V.V., Lebedev, G.A., Perov, E.P., Pushin, V.G., Khovailo, V.V., Shavrov, V.G., and Shelyakov, A.V.

Subjects
Technology
Abstract

A new design principle of a composite functional material on the basis of a material with shape memory effect has been proposed and tested in experiment. This design can be applied to the majority of traditional materials with shape memory effect (ferromagnetic and non-ferromagnetic alloys as well as for polymers) and it provides in all cases a giant reversible straining though the "one-way" shape memory effect is used only. This design is especially promising for applications in the fields of micro- and nano-electromechanical systems. Запропоновано та експериментально випробувано нову схему композитного функціонального матеріалу на основі матеріалу з ефектом пам'яті форми. Ця схема може бути застосована для більшості традиційних матеріалів з пам'яттю форми - феромагнітних та неферомагнітних сплавів, а також полімерів. У всіх випадках вона забезпечує гігантську оборотну деформацію, хоч використовується лише "односторонній" ефект пам'яті форми. Ця схема є особливо перспективною для застосування у галузі мікрота наномеханіки. Предложена и экспериментально испытана новая схема композитного функционального материала на основе материала с эффектом памяти формы. Эта схема может быть применена для большинства традиционных материалов с памятью формы - ферромагнитных и неферромагнитных сплавов, а также полимеров. Во всех случаях она обеспечивает гигантскую обратимую деформацию, хотя используется только "односторонний эффект памяти формы". Эта схема особенно перспективна для применений в области микро- и наномеханики.

Published
2008

35. The structure and functional properties of alloy rapidly quenched ribbons with different fractions of crystalline phase.

Author

Belyaev, S.P., Istomin-Kastrovskiy, V.V., Koledov, V.V., Kuchin, D.S., Resnina, N.N., Shavrov, V.G., Shelyakov, A.V., and Ivanov, S.E.

Subjects
CRYSTALLIZATION, NANOCRYSTALS, MARTENSITE, SHAPE memory alloys, AMORPHOUS substances, ELECTRIC resistance
Abstract

Abstract: The samples of Ti2NiCu rapidly quenched alloy with different fractions of crystalline phase have been prepared by electric pulse technique from as spun amorphous ribbons. The structure and thermomechanical properties of these samples have been studied. The mixture of amorphous and nanocrystalline structures with mean grains size less than 10 nm has been observed by HRTEM. The remarkable thermomechanical properties of the samples with the ratio of crystalline fraction in the range of (determined by electrical resistivity measurements) have been found. The two-way shape memory effect with the reverse deformation has been induced in the sample with by single deformation at cooling below the temperature of martensite transformation. The prototype of microtweezers based on amorphous-nanocrystalline Ti2NiCu melt-spun ribbon alloy with two-way shape memory effect has been designed and tested. [ABSTRACT FROM AUTHOR]

Published
2010
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36. New materials for optical computing and holography

Author

Ryabova, R.V., primary, Ammosov, V.V., additional, Arestova, E.A., additional, Averyanov, S.G., additional, Baranoy, V.L., additional, Bykovsky, Y.A., additional, Erko, A.I., additional, Gnatyuk, L.G., additional, Grosmann, M.H., additional, Gurary, M.L., additional, Kovneristy, Yu.K., additional, Larkin, A.I., additional, Mironov, Yu.A., additional, Morgunov, O.V., additional, Shelyakov, A.V., additional, Wang, S., additional, and Zarubin, A.M., additional

Published
1991
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37. Effect of Hydrogen on the Crystallization of Amorphous Ti50Ni25Cu25 Titanium Alloy.

Author

Skryabina, N.E., Fruchart, D., Spivak, L.V., and Shelyakov, A.V.

Subjects
TITANIUM alloys, AMORPHOUS substances, HYDROGEN, CRYSTALLIZATION, MARTENSITIC transformations
Abstract

We describe effects unknown earlier in the physics of interaction between hydrogen and amorphous metallic alloys: an increase in the crystallization temperature of hydrogen-containing Ti50Ni25Cu25 alloy in the course of its heating and suppression of the inverse martensitic transformation B2 → B19 after crystallization. [ABSTRACT FROM AUTHOR]

Published
2005
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40. The structure and functional properties of Ti2NiCu alloy rapidly quenched ribbons with different fractions of crystalline phase

Author

Belyaev, S.P., Istomin-Kastrovskiy, V.V., Koledov, V.V., Kuchin, D.S., Resnina, N.N., Shavrov, V.G., Shelyakov, A.V., and Ivanov, S.E.

Subjects
Ti–Ni–Cu, Amorphous-crystaline alloys, Two-way shape memory effect, Shape memory effect
Abstract

The samples of Ti2NiCu rapidly quenched alloy with different fractions of crystalline phase have been prepared by electric pulse technique from as spun amorphous ribbons. The structure and thermomechanical properties of these samples have been studied. The mixture of amorphous and nanocrystalline structures with mean grains size less than 10 nm has been observed by HRTEM. The remarkable thermomechanical properties of the samples with the ratio of crystalline fraction in the range of r=0.4−0.6 (determined by electrical resistivity measurements) have been found. The two-way shape memory effect with the reverse deformation Δε=0.31% has been induced in the sample with r=0.46 by single deformation at cooling below the temperature of martensite transformation. The prototype of microtweezers based on amorphous-nanocrystalline Ti2NiCu melt-spun ribbon alloy with two-way shape memory effect has been designed and tested.

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42. The Effect of Hydrogen on the Shear Modulus of Quasibinary Alloys of the TiNi–TiCu System.

Author

Skryabina, N.E., Spivak, L.V., and Shelyakov, A.V.

Subjects
HYDROGENATION, METALLIC composites, ALLOYS, AMORPHOUS substances, CHEMICAL kinetics, SHEAR (Mechanics)
Abstract

Hydrogen saturation of amorphous quasibinary alloys of the TiNi-TiCu system is accompanied by a catastrophic decrease in their shear moduli. The effect is not related to the formation of new phases or structural components during hydrogenation. [ABSTRACT FROM AUTHOR]

Published
2004
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43. New materials for optical computing and holography

Author

Ryabova, R.V., Ammosov, V.V., Arestova, E.A., Averyanov, S.G., Baranov, V.L., Bykovsky, Y.A., Erko, A.I., Gnatyuk, L.G., Grosmann, M.H., Gurary, M.L., Kovneristy, Yu.K, Larkin, A.I., Mironov, Yu.A, Morgunov, O.V., Shelyakov, A.V., Wang, S., and Zarubin, A.M.

Published
1991
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44. Effect of hydrogenation on the martensite transformation in nano-crystalline Ti50Ni25Cu25

Author

Skryabina, N.E., Fruchart, D., and Shelyakov, A.V.

Subjects
*NONMETALS, *HYDROGEN, *MARTENSITE, *CRYSTALLIZATION
Abstract

Abstract: Hydrogen saturation in amorphous state of Ti50Ni25Cu25 alloy leads to the suppression of the well known martensite phase transformation that occurs after heating, nano-crystallization and cooling down to room temperature. [Copyright &y& Elsevier]

Published
2007
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45. Amorphous–crystalline Ti2NiCu alloy rapidly quenched ribbons annealed by DSC and electric pulses.

Author

Belyaev, S.P., Resnina, N.N., Irzhak, A.V., Istomin-Kastrovsky, V.V., Koledov, V.V., Kuchin, D.S., Shavrov, V.G., Ari-Gur, P., Shelyakov, A.V., and Tabachkova, N.Yu.

Subjects
*AMORPHOUS alloys, *TITANIUM, *COPPER-nickel alloys, *METAL quenching, *ANNEALING of metals, *DIFFERENTIAL scanning calorimetry, *CRYSTAL growth
Abstract

Highlights: [•] Samples of Ti2NiCu alloy were annealed by electric pulse and annealing in DSC. [•] The spherulites nucleation and growth was observed in samples annealed in DSC. [•] 10nm grains was found in the samples after electric current annealed. [•] New crystalline grains nucleate during pulses of electric current without growth. [ABSTRACT FROM AUTHOR]

Published
2014
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