Influence of Detwinning on the Shape Memory Effect in Ni55Fe18Ga27 Single Crystals

Belyaev, Sergey; Resnina, Natalia; Николаев, В. И.; Timashov, R. B.; Savel'eva, A. V.; Gazizullina, A. P.; Krymov, V. M.; Sibirev, Alexey

doi:10.1007/s11665-019-04188-8

Cited by 4 publications

(2 citation statements)

References 31 publications

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“…Earlier we demonstrated, that NiFeGaCo monocrystals can be grown from melt using industrial methods, e.g., Czochralski and Stepanov methods, that allow to obtain the high-quality crystals of silicon [10] and sapphire [11]. By now, using Stepanov method we obtained crystals, from which it is possible to create samples, comparable with those, that are cut from ingots, grown using Bridgman method [12][13][14][15].…”

Section: Introductionmentioning

confidence: 90%

Formation of a dendrite structure in crystals NiFeGaCo alloy in the process of growing by the Stepanov method

Krymov

M.G.

et al. 2022

Physics of the Solid State

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The process of growing crystals of the NiFeGaCo alloy by the Stepanov method has been developed. It was found that the structural perfection is disturbed by the formation of dendrites, which are distributed inhomogeneously both along the length and in the cross sections of the crystals. The blocking effect of the dendrites on growth crystals of the martensite phase, which appears when the samples are cooled to the temperature of the transition of the crystal to the martensite state, is found. The elemental composition of dendritic formations was studied and it was shown that the iron content in the dendrite is approximately 30% higher, and the gallium content is 40% lower than in the matrix. Based on the modeling of heat transfer processes in the real growth zone, taking into account the experiments performed, recommendations were obtained for suppressing the formation of dendrites Keywords: Dendritic structure, shape memory alloys, Stepanov's method.

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Section: Introductionmentioning

confidence: 90%

Formation of a dendrite structure in crystals NiFeGaCo alloy in the process of growing by the Stepanov method

Krymov

M.G.

et al. 2022

Physics of the Solid State

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“…Ранее нами было показано, что монокристаллы NiFeGaCo могут быть выращены из расплава промышленными методами, например, Чохральского и Степанова, которые позволяют получать высококачественные кристаллы кремния [10] и сапфира [11]. К настоящему времени, в рамках способа Степанова нами получены кристаллы, из которых можно изготовить образцы, сравнимые с теми, что вырезаются из слитков, выращенных методом Бриджмена [12][13][14][15].…”

Section: Introductionunclassified

Образование дендритной структуры в кристаллах NiFeGaCo при выращивании способом Степанова

Носов¹,

Крымов²,

Васильев³

et al. 2021

Физика Твердого Тела

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The process of growing crystals of the Ni-Fe-Ga-Co alloy by the Stepanov method has been developed. It was found that the structural perfection is disturbed by the formation of dendrites, which are distributed inhomogeneously both along the length and in the cross sections of the crystals. The blocking effect on the dendrites of crystals of the martensite phase, which appears when the samples are cooled to the temperature of the transition of the crystal to the martensite state, is found. The elemental composition of dendritic formations was studied and it was shown that the iron content in the dendrite is approximately 30% higher, and the gallium content is 40% lower than in the matrix. Based on the modeling of heat transfer processes in the real growth zone, taking into account the experiments performed, recommendations were obtained for suppressing the formation of dendrites

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Transition temperature tuning of Ni2FeGa based Heusler alloys in form of glass-coated microwires

Hennel¹,

Galdun²,

Ryba³

et al. 2020

Journal of Magnetism and Magnetic Materials

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Influence of Detwinning on the Shape Memory Effect in Ni55Fe18Ga27 Single Crystals

Cited by 4 publications

References 31 publications

Formation of a dendrite structure in crystals NiFeGaCo alloy in the process of growing by the Stepanov method

Formation of a dendrite structure in crystals NiFeGaCo alloy in the process of growing by the Stepanov method

Образование дендритной структуры в кристаллах NiFeGaCo при выращивании способом Степанова

Transition temperature tuning of Ni2FeGa based Heusler alloys in form of glass-coated microwires

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