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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">cvmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Цветная металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Non-Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3438</issn><issn pub-type="epub">2412-8783</issn><publisher><publisher-name>НИТУ МИСИС</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0021-3438-2025-1-67-79</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-1659</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Металловедение и термическая обработка</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Physical Metallurgy and Heat Treatment</subject></subj-group></article-categories><title-group><article-title>Влияние режимов горячей деформации и термической обработки на структуру и механические свойства сплава на основе орторомбического алюминида титана ВИТ1</article-title><trans-title-group xml:lang="en"><trans-title>Effect of hot deformation and heat treatment conditions on the structure and mechanical properties of the VIT1 alloy based on orthorhombic titanium aluminide</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4363-3604</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соколовский</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolovsky</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виталий Сергеевич Соколовский – к.т.н., науч. сотрудник лаборатории объемных наноструктурных материалов</p><p>308015, г. Белгород, ул. Победы, 85</p></bio><bio xml:lang="en"><p>Vitaly S. Sokolovsky – Cand. Sci. (Eng.), Researcher of the Laboratory of Bulk Nanostructured Materials</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9554-2651</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ноздрачева</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Nozdracheva</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Ивановна Ноздрачева – мл. науч. сотрудник лаборатории объемных наноструктурных материалов</p><p>308015, г. Белгород, ул. Победы, 85</p></bio><bio xml:lang="en"><p>Elena I. Nozdracheva – Junior Researcher of the Laboratory of Bulk Nanostructured Materials</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кярамян</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kyaramyan</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Карен Абовович Кярамян – начальник отдела металлургического производства</p><p>105118, г. Москва, пр-т Буденного, 16</p></bio><bio xml:lang="en"><p>Karen A. Kyaramyan – Head of the Metallurgical Production Department</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Быков</surname><given-names>Ю. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Bykov</surname><given-names>Yu. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Геннадьевич Быков – к.т.н., гл. специалист отдела металлургического производства</p><p>105118, г. Москва, пр-т Буденного, 16</p></bio><bio xml:lang="en"><p>Yuri G. Bykov – Cand. Sci. (Eng.), Chief Specialist of the Metallurgical Production Department</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексеев</surname><given-names>Е. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseev</surname><given-names>E. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Борисович Алексеев – к.т.н., начальник сектора научно-исследовательского отдела «Титановые, магниевые, бериллиевые и алюминиевые сплавы» лаборатории № 8</p><p>105005, г. Москва, ул. Радио, 17</p></bio><bio xml:lang="en"><p>Evgeny B. Alekseev – Cand. Sci. (Eng.), Head of Sector of the Department “Titanium, magnesium, beryllium and aluminum alloys” of the Laboratory No. 8</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0815-3525</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Салищев</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Salishchev</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Геннадий Алексеевич Салищев – д.т.н., профессор, заведующий лабораторией объемных наноструктурных материалов </p><p>308015, г. Белгород, ул. Победы, 85</p></bio><bio xml:lang="en"><p>Gennady A. Salishchev – Dr. Sci. (Eng.), Professor, Head of the Laboratory of Bulk Nanostructured Materials</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белгородский государственный национальный исследовательский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Belgorod State National University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Филиал АО «Объединенная двигателестроительная корпорация» «Научно-исследовательский институт технологии и организации производства двигателей»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Branch of JSC “United Engine Corporation” “Research Institute of Technology and Organization of Engine Production”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт авиационных материалов Национального исследовательского центра «Курчатовский институт»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>All-Russian Scientific Research Institute of Aviation Materials of the National Research Centre “Kurchatov Institute”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>23</day><month>03</month><year>2025</year></pub-date><volume>31</volume><issue>1</issue><fpage>67</fpage><lpage>79</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Соколовский В.С., Ноздрачева Е.И., Кярамян К.А., Быков Ю.Г., Алексеев Е.Б., Салищев Г.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Соколовский В.С., Ноздрачева Е.И., Кярамян К.А., Быков Ю.Г., Алексеев Е.Б., Салищев Г.А.</copyright-holder><copyright-holder xml:lang="en">Sokolovsky V.S., Nozdracheva E.I., Kyaramyan K.A., Bykov Y.G., Alekseev E.B., Salishchev G.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://cvmet.misis.ru/jour/article/view/1659">https://cvmet.misis.ru/jour/article/view/1659</self-uri><abstract><p>Исследовано влияние деформационно-термической обработки на структуру и механические характеристики сплава на основе орторомбического алюминида титана ВИТ1 в горячекатаном состоянии. Проведено изучение эволюции микроструктуры и механического поведения сплава при горячей деформации в температурном интервале 850–1050 °С. Установлено, что при температуре t = 950 °С, скорости деформации ε· = 5 ·10–4 с–1 и степени деформации ε = 70 % в сплаве, вследствие протекания при горячей деформации процессов рекристаллизации и сфероидизации, формируется микроструктура с размером зерен ~1 мкм, состоящая из β-, α2 и О-фаз. Показано, что повышение температуры деформации ведет к растворению частиц О-фазы и резкому замедлению развития динамической рекристаллизации. Всесторонней изотермической ковкой получены заготовки с однородной мелкозернистой структурой и исследовано влияние термической обработки (закалки и старения) на структуру и механические свойства сплава. По результатам предварительного изучения влияния температуры нагрева на структуру и свойства сплава определены интервалы температур закалки и старения. Показано, что наиболее сбалансированный уровень прочности, пластичности и жаропрочности получен после термической обработки при следующих условиях: выдержка 4 ч при t = 1025 °С с последующей закалкой на воздухе, старение 850 °С в течение 6 ч. </p></abstract><trans-abstract xml:lang="en"><p>The effect of thermo-mechanical treatment on the structure and mechanical properties of the hot-rolled orthorhombic titanium aluminide alloy VIT1 was investigated. The evolution of the microstructure and mechanical behavior of the alloy during hot deformation in the temperature range of 850–1050 °C was studied. It was established that at a temperature of 950 °C, a strain rate of ε· = 5 ·10–4 s–1 and a strain of ε = 70 %, the microstructure formed during hot deformation, due to the processes of recrystallization and spheroidization, consisted of grains ~1 μm in size, comprising β-, α2-, and O-phases. It was shown that increasing the deformation temperature led to the dissolution of O-phase particles and a significant deceleration in the development of dynamic recrystallization. Homogeneous fine-grained billets were obtained via multi-directional isothermal forging, and the effect of heat treatment (quenching and aging) on the structure and mechanical properties of the alloy was examined. Based on a preliminary study of the influence of heating temperature on the alloy’s structure and properties, the temperature ranges for quenching and aging were determined. It was demonstrated that the most balanced levels of strength, ductility, and heat resistance were achieved after heat treatment under the following conditions: holding for 4 h at 1025 °C followed by air cooling, and aging at 850 °C for 6 h.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>орторомбический алюминид титана Ti2NbAl</kwd><kwd>сплав ВИТ1</kwd><kwd>всесторонняя изотермическая ковка</kwd><kwd>закалка</kwd><kwd>старение</kwd><kwd>механические свойства</kwd></kwd-group><kwd-group xml:lang="en"><kwd>orthorhombic titanium aluminide Ti2NbAl</kwd><kwd>VIT1 alloy</kwd><kwd>multi-directional isothermal forging</kwd><kwd>quenching</kwd><kwd>aging</kwd><kwd>mechanical properties</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Российского научного фонда (соглашение № 19-79-30066) с использованием оборудования Центра коллективного пользования «Технологии и материалы» НИУ «БелГУ», https://rscf.ru/prjcard_int?19-79-30066</funding-statement><funding-statement xml:lang="en">The authors gratefully acknowledge the financial support from the Russian Science Foundation (Grant No. 19-79-30066). The authors are grateful to the personnel of the Joint Research Center “Technology and Materials” of Belgorod State National Research University, for their assistance. https://rscf.ru/prjcard_int?19-79-30066</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">НИЦ «Курчатовский институт». Всероссийский научно-исследовательский институт авиационных материалов. Плиты из интерметаллидного титанового сплава марки ВИТ1. URL: https://catalog.viam.ru/catalog/vit1/plity-iz-intermetallidnogo-titanovogosplava-marki-vit1/ (дата обращения: 28.02.2024).</mixed-citation><mixed-citation xml:lang="en">НИЦ «Курчатовский институт». Всероссийский научно-исследовательский институт авиационных материалов. Плиты из интерметаллидного титанового сплава марки ВИТ1. 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