Персона: Леонтьева-Смирнова, Мария Владимировна
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Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Леонтьева-Смирнова
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Мария Владимировна
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- ПубликацияТолько метаданныеEffect of high-temperature thermomechanical treatment on microstructure, mechanical properties and fracture of the reduced activation 12% chrome ferritic-martensitic steel EK-181 in the temperature range from -196 ºС to 700 ºС ВЛИЯНИЕ ВЫСОКОТЕМПЕРАТУРНОИ ТЕРМОМЕХАНИЧЕСКОИ ОБРАБОТКИ НА МИКРОСТРУКТУРУ, МЕХАНИЧЕСКИЕ СВОИСТВА И РАЗРУШЕНИЕ МАЛОАКТИВИРУЕМОИ 12%-НОИ ХРОМИСТОИ ФЕРРИТНО-МАРТЕНСИТНОИ СТАЛИ ЭК-181 В ИНТЕРВАЛЕ ТЕМПЕРАТУРЫ ОТ -196 ДО 700 ºС(2019) Polekhina, N. A.; Almaeva, K. V.; Litovchenko, I. Yu.; Tyumentsev, A. N.; Chernov, V. M.; Leontyeva-Smirnova, M. V.; Чернов, Вячеслав Михайлович; Леонтьева-Смирнова, Мария Владимировна© 2019 National Research Center Kurchatov Institute. All rights reserved.The effect of temperature in the range from -196 ºС to 700 ºС on the strength and plastic (the elongation to fracture) properties of the reduced activation 12% chromium ferritic-martensitic steel EK-181 (Fe-12Cr-2W-V-Ta-B) after high-temperature thermomechanical treatment with plastic deformation in the austenitic region (HTMT) has been studied. The HTMT provides a significant increase of the yield strength with preservation of a sufficient level of the plasticity, compared with traditional heat treatment (THT). The higher values of strength after HTMT are associated with changes in the structural phase state of the steel and, as a result, with an increase in the efficiency of joint dispersed hardening (by nanosized vanadium carbonitride precipitates) and substructure hardening (due to an increase in dislocation density). The fracture type of steel is practically independent of the treatment conditions.
- ПубликацияТолько метаданныеHigh heat flux tests of tungsten – RAFM steel mock-up brazed by Ti-Zr-4Be alloy(2025) Bachurina, D. M.; Suchkov, A. N.; Sevryukov, O. N.; Kirillova, V. O.; Leontyeva-Smirnova, M. V.; Сучков, Алексей Николаевич; Севрюков, Олег Николаевич; Кириллова, Вероника Олеговна; Леонтьева-Смирнова, Мария Владимировна
- ПубликацияТолько метаданныеMethodical Features of Tensile Testing of Ring Samples(2020) Kostyukhina, A. V.; Taktashev, R. N.; Leontieva-Smirnova, M. V.; Kalin, B. A.; Morozov, E. M.; Fedotov, P. V.; Леонтьева-Смирнова, Мария Владимировна; Морозов, Евгений Михайлович© 2020, Pleiades Publishing, Ltd.Abstract: Experimental and computational studies of the deformation behavior of ring samples under stretching with the use of cylindrical supports have been performed. Methodological errors of this type of testing have been analyzed. The deformation accumulated upon straightening a ring sample and also the gauge length thereof depending on the dimensions of the sample and supports have been determined. Relations that describe the error in determining the gauge length of a ring sample and the plastic deformation accumulated in the course of its straightening have been established.
- ПубликацияТолько метаданныеStructural-Phase Evolution of Quenched Low-Activation Ferritic–Martensitic Steel in Dependence of the Temperature of Isothermal Holding(2020) Mozhanov, E. M.; Boiko, N. V.; Evstyukhina, I. A.; Leont'eva-Smirnova, M. V.; Rudakov, S. G.; Sharapov, A. S.; Shcherbakov, A. V.; Бойко, Надежда Владимировна; Леонтьева-Смирнова, Мария Владимировна; Рудаков, Сергей Геннадьевич© 2020, Pleiades Publishing, Ltd.Abstract: This paper is devoted to the investigation of the effect of nitrogen and carbon content, as well as different temperatures of isothermal holding,—on the structural-phase state evolution of the quenched low-activation 12% chromium ferritic–martensitic steel. Basic temperature ranges within which the structural-phase state of the quenched steel changes upon heating have been found using the differential scanning calorimetry technique. Correlations between changes in the fine atomic structure of steel and structural-phase transformations during isothermal heating have been established by Mössbauer spectroscopy.