Výsledky vyhledávání - "V. K. Portnoi"

Superplasticity of an Ultrafine-Grained Ti–4% Al–1% V–3% Mo Alloy

Autor: A. V. Mikhailovskaya, Ahmed O. Mosleh, Anton D. Kotov, V. K. Portnoi, A. S. Prosviryakov, T. P. Pourcelot

Publikováno v: Physics of Metals and Metallography. 120:60-68

This paper investigates the microstructure and superplastic indicators of industrial titanium sheets (Ti–4% Al–1% V–3% Mo alloy) in a temperature range of 750–900°C and strain-rate range of 1 × 10–5 to 1 × 10–2 s–1. The results show

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::acd0b8b035e4b584b459887084b70d4b
https://doi.org/10.1134/s0031918x18100083

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Use of Heterogenization for Improving Alloy AA5083 Superplasticity Indices

Autor: V. K. Portnoi, A. V. Mikhailovskaya, A. A. Kishchik, A. D. Kotov, S. V. Medvedeva, O. A. Yakovtseva

Publikováno v: Metallurgist. 62:449-455

The microstructure and superplasticity indices are compared for specimens of alloy AA5083 prepared by two technologies: using intermediate heterogenization annealing and without it. As a result of heterogenization β -phase is separated that during r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7dc5c905a72259fb9e8ff21298a75add
https://doi.org/10.1007/s11015-018-0680-4

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Effect of Treatment Parameters on Grain Structure and Mechanical Properties of Sheets of Al – 3% Mg Alloy with Zr and Ti Additions

Autor: A. V. Mikhailovskaya, V. K. Portnoi, A. G. Mochugovskii, V. S. Levchenko

Publikováno v: Metal Science and Heat Treatment. 59:357-362

The microstructure, mechanical properties and superplasticity indices of sheets of aluminum alloy Al – 3% Mg with 0.3% Zr and 0.1% Ti are studied. Use of low-temperature homogenizing (at 360°C) and two-stage hot rolling (at 360 and 420°C) with in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::747d8da2186c78c8c1cd8f5f17e81aa4
https://doi.org/10.1007/s11041-017-0156-3

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Heating-induced transformations of multicomponent alloys prepared by mechanochemical synthesis

Autor: M. S. Gusakov, S. E. Filippova, A. I. Logacheva, A. V. Logachev, V. K. Portnoi, Alexandr V. Leonov

Publikováno v: Inorganic Materials. 53:437-446

Multicomponent (Cr, Fe, Co, Ni, Al, Ti, and Nb) powder alloys prepared by milling five- to seven-component equiatomic mixtures of elemental powders in a Fritsch (P-7) planetary mill have been characterized by differential thermal analysis and X-ray d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5f3ed907731cee550ba6cb94199bd7d3
https://doi.org/10.1134/s002016851704015x

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Mechanochemical synthesis of chromium-based alloys

Autor: S. E. Filippova, Alexandr V. Leonov, A. I. Logacheva, I. M. Razumovskii, V. K. Portnoi, A. G. Beresnev

Publikováno v: Inorganic Materials. 52:895-901

This paper presents a detailed study of the formation of chromium-based alloys, Cr–Ta–W + plasticizing additives (Nb and Zr) and Cr–Ta–Si, during milling of powder mixtures in a Fritsch (P-7) planetary mill under an Ar atmosphere. It is shown

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bccbb296f890793f99c45f8090405dcf
https://doi.org/10.1134/s0020168516090144

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Effect of alloying on superplasticity of two-phase brasses

Autor: O. A. Yakovtseva, Anton D. Kotov, A. V. Mikhailovskaya, V. K. Portnoi

Publikováno v: The Physics of Metals and Metallography. 117:742-748

Superplasticity characteristics of two-component and multicomponent brasses in the temperature range 525–600°C have been investigated at tension tests under the conditions of stepwise enhancement in the strain rate and when maintaining a constant

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::864cdbd372ded0c6e507f11e6f8dfe86
https://doi.org/10.1134/s0031918x16070188

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Effect of elemental composition on phase formation during milling of multicomponent equiatomic mixtures

Autor: M. S. Gusakov, S. E. Filippova, V. K. Portnoi, A. I. Logacheva, Alexandr V. Leonov, A. N. Streletskii, V. N. Kuznetsov

Publikováno v: Inorganic Materials. 52:529-536

Using mechanochemical synthesis through milling of equiatomic multicomponent mixtures of Cr, Fe, Co, Ni, Al, Ti, Mo, and Nb metals in various combinations, we have synthesized powder alloys with different phase compositions: amorphous phase (AP), AP

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b23173860c3744c7ac9e405755ae73d3
https://doi.org/10.1134/s0020168516050125

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Synthesis of a decagonal phase in the Al–Cu–Fe–Cr system by mechanical alloying

Autor: L. L. Meshkov, D. B. Chugunov, V. K. Portnoi, S. E. Filippova

Publikováno v: Inorganic Materials. 52:120-127

Quasicrystalline Al–Cu–Fe–Cr alloys have been prepared by mechanical activation. The morphology of powder particles has been investigated after thermomechanical processing under various conditions. We have identified the sequence of phase trans

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::793a28d29194de0699af930aa4bb75d5
https://doi.org/10.1134/s0020168516020023

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Mechanochemical synthesis in the Nb-Al-Si and Nb-Al-Si-C systems

Autor: V. K. Portnoi, A. I. Logacheva, Alexandr V. Leonov, A. N. Streletskii, A. V. Logachev

Publikováno v: Inorganic Materials. 51:583-592

Ternary and quaternary alloys of the Nb-Al-Si and Nb-Al-Si-C systems have been produced by mechanochemical synthesis. Our results demonstrate that the milling of a 62Nb + 19Al + 19Si ternary mixture, whose composition corresponds to that of the inter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a863ccd7a96155f20ad5b24a6c68c8cc
https://doi.org/10.1134/s0020168515050143

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