Shape memory effect in Mn-V-C austenitic steels involving deformation reorientation of ɛ-martensite

Сагарадзе, В. В.; Afanas'ev, S. V.; Kataeva, N. V.

doi:10.1134/s0031918x13020117

Cited by 6 publications

(6 citation statements)

References 7 publications

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“…The branching of domains is well known [30], which indicates that there is the possibility for the branching of self-similar nano-twins that have a habit plane at 45° to the preferred twin plane [31] switching of the branched structure for applied fields of up to 0.1 T [32] and shearing re-twinning [33].…”

Section: Discussionmentioning

confidence: 99%

Magnetic pulse controlled microstructure development in Co₄₉Ni₂₁Ga₃₀ single crystals

Gerstein

Firstov

Chumlyakov³

et al. 2018

Materials Science and Technology

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A pulsed magnetic field (MF) up to 0.6 T leads to the generation of fine microstructure through the change in the dynamics of the interaction process between the MF and the magnetic- and microstructure in Co49Ni21Ga30 magnetic shape memory alloy single crystals. This paper addresses the impact of pulsed and permanent MF on the transformation behaviour in Co49Ni21Ga30. A pulsed MF can result in different microstructural accommodation processes in stress-induced martensite, as compared to an application of a mechanical stress or permanent MF. In a pulsed MF, the development of new nano-twin systems in the martensitic structure of the CoNiGa alloy and the formation of fine magnetic domains at the microscale are observed.

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Section: Discussionmentioning

confidence: 99%

Magnetic pulse controlled microstructure development in Co₄₉Ni₂₁Ga₃₀ single crystals

Gerstein

Firstov

Chumlyakov³

et al. 2018

Materials Science and Technology

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“…The effect of the precipitation hardening in these vanadium con taining steels with 0.2-1.0 wt % carbon is higher than in the SME steels with 0.5-1.0 wt % niobium [10,11]. However, the precipitation hardening steels with the SME proposed in [1][2][3][4][5][6][7] are not corrosion resistant. It is of significant interest to obtain the SME in the aging stainless steel with an increased content of chromium.…”

Section: Introductionmentioning

confidence: 91%

“…that possess a shape memory effect (SME) to ~2.5% have been for the first time proposed and investigated in [1][2][3][4][5][6][7]. These steels are strengthened due to the precipitation of nanosized VC carbides upon aging, experience the forward γ → ε and reverse ε → γ martensitic transformations, and have advantages over the known [8,9] SME steels based on Fe-28Mn-6Si.…”

Section: Introductionmentioning

confidence: 99%

Precipitation-hardening stainless steels with a shape-memory effect

Сагарадзе

Afanasiev

Волкова

et al. 2016

Phys. Metals Metallogr.

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The possibility of obtaining the shape memory effect as a result of the γ → ε → γ transformations in aging stainless steels strengthened by VC carbides has been investigated. Regimes are given for strengthen ing aging (at 650 and 720°C) for stainless steels that predominantly contain (in wt %) 0.06-0.45C, 1-2V, 2-5Si, 9 and 13-14Cr. The values of reversible deformation e (amount of shape memory effect) determined after heating to 400°C in samples preliminarily deformed to 3.5-4% vary from 0.15 to 2.7%, depending on the composition of the steels and regimes of stabilizing and destabilizing aging.

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“…% углерода (0,2С-20Mn-2Si-1V; 0,4C-18Mn-2Si-2V и др. ), обладающие эффектом памяти формы (ЭПФ) до ~ 2,5 %, впервые были предложены и исследованы в работах [1][2][3][4][5][6]. Предложенные стали упрочняются за счет выделения наноразмерных карбидов VC при старении, испытывают прямое γ→ε и обратное ε→γ мартенситные превращения и имеют преимущества перед известными [7] ЭПФ-сталями на основе Fe-28Mn-6Si.…”

Section: Introductionunclassified

The structure and properties of hardened stainless steels with a shape memory effect

Afanasiev¹,

Волкова²,

Сагарадзе³

2015

DREAM

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A possibility of obtaining the shape memory effect has been investigated as a result of γ→ε→γ transformations in stainless steels hardened by VC carbides. Age hardening conditions at 650 and 720 °C for stainless steels containing (in mass %) 0.20 -0.35 C, 1 V, 3 -4 Si, 9 and 13 -14 Cr are presented. The values of reversible strain e determined after heating to 400 °C in specimens preliminarily deformed by 3.5 -4 % vary from 0.15 to 2.7 % depending on the composition of the steels and the conditions of stabilizing and destabilizing aging. Sagaradze V.V., Mukhin M.L., Belozerov E.V., Zainutdinov Yu.R., Pecherkina N.L., Filippov Yu.I. Controlled shape memory effect in high strength Mn and Cr-Mn steels. Materials Science and Engineering: A, 2008, vol. 481-482, pp. 742-746. DOI:10.1016/j.msea.2007 Sagaradze V.V., Kositsyna I.I., Muкhin M.L., Belozerov E.V., Zaynutdinov Yu.R. Highstrength precipitation-hardening austenitic Fe-Mn-V-Mo-C steels with shape memory effect. Sagaradze V.V., Voronin V.I., Filippov Yu.I., Kazantsev V.A., Mukhin M.L., Belozerov E.V., Pecherkina N.L., Kataeva N.V., Popov A.G. Martensitic transformations γ-ε(α) and the shape-memory effect in aging high-strenght manganese austenitic steels. The Physics of Metals and Metallography, 2008, vol. 106, iss.6, pp 630-640. DOI: 10.1134/S0031918X08120120. 6. Sagaradze V. V., Afanas'ev S. V., Kataeva N. V. Shape memory effect in Mn-V-C austenitic steels involving deformation reorientation of ε-martensite. The Physics of Metals and Metallography, 2013, vol. 114, iss. 4, pp. 322-326 Baruj A., Kikuchi T., Kajivara S., Shinya N. Improved shape memory properties and internal structures in Fe-Mn-Si-based alloys containing Nb and C.

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Shape memory effect in Mn-V-C austenitic steels involving deformation reorientation of ɛ-martensite

Cited by 6 publications

References 7 publications

Magnetic pulse controlled microstructure development in Co₄₉Ni₂₁Ga₃₀ single crystals

Magnetic pulse controlled microstructure development in Co₄₉Ni₂₁Ga₃₀ single crystals

Precipitation-hardening stainless steels with a shape-memory effect

The structure and properties of hardened stainless steels with a shape memory effect

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Shape memory effect in Mn-V-C austenitic steels involving deformation reorientation of ɛ-martensite

Cited by 6 publications

References 7 publications

Magnetic pulse controlled microstructure development in Co49Ni21Ga30 single crystals

Magnetic pulse controlled microstructure development in Co49Ni21Ga30 single crystals

Precipitation-hardening stainless steels with a shape-memory effect

The structure and properties of hardened stainless steels with a shape memory effect

Contact Info

Product

Resources

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Magnetic pulse controlled microstructure development in Co₄₉Ni₂₁Ga₃₀ single crystals

Magnetic pulse controlled microstructure development in Co₄₉Ni₂₁Ga₃₀ single crystals