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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">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2023-1-105-111</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2486</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>По материалам Международной научной  конференции «ФИЗИКО-ХИМИЧЕСКИЕ  ОСНОВЫ МЕТАЛЛУРГИЧЕСКИХ ПРОЦЕССОВ» им. академика А.М. Самарина,  Выкса, 10 – 14 октября 2022 г.</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Materials of the International  Scientific Conference “PHYSICO-CHEMICAL FOUNDATIONS OF METALLURGICAL PROCESSES” named after Academician A.M. Samarin, Vyksa, October 10 – 14, 2022</subject></subj-group></article-categories><title-group><article-title>Металлографическое исследование особенностей строения тонкого сляба и произведенного из него проката</article-title><trans-title-group xml:lang="en"><trans-title>Metallographic analysis of structural peculiarities of thin slab and rolled products manufactured thereof</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ворожева</surname><given-names>Е. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Vorozheva</surname><given-names>E. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгения Львовна Ворожева, главный специалист</p><p>Россия, 607060, Нижегородская обл., Выкса, ул. Бр. Баташевых, 45</p></bio><bio xml:lang="en"><p>Evgeniya L. Vorozheva, Chief Specialist</p><p>45 Br. Batashevykh Str., Vyksa, Nizhny Novgorod Region 607060, Russian Federation</p></bio><email xlink:type="simple">vorozheva_el@vsw.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сметанин</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Smetanin</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кирилл Сергеевич Сметанин, главный специалист по электронной микроскопии и рентгенографии лаборатории металловедения</p><p>Россия, 607060, Нижегородская обл., Выкса, ул. Бр. Баташевых, 45</p></bio><bio xml:lang="en"><p>Kirill S. Smetanin, Chief Specialist on Electron Microscopy and Radio­graphy of the Laboratory of Metal Science</p><p>45 Br. Batashevykh Str., Vyksa, Nizhny Novgorod Region 607060, Russian Federation</p></bio><email xlink:type="simple">smetanin_ks@vsw.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кислица</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kislitsa</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вячеслав Владимирович Кислица, к.т.н., начальник управления по металлургическим процессам</p><p>Россия, 607060, Нижегородская обл., Выкса, ул. Бр. Баташевых, 45</p></bio><bio xml:lang="en"><p>Vyacheslav V. Kislitsa, Cand. Sci. (Eng.), Head of the Department of Metal­lurgical Processes</p><p>45 Br. Batashevykh Str., Vyksa, Nizhny Novgorod Region 607060, Russian Federation</p></bio><email xlink:type="simple">kislica_vv@vsw.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудашов</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudashov</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Викторович Кудашов, к.т.н., главный специалист по инновациям, АО «Выксунский металлургический завод»; директор, Выксунский филиал НИТУ «МИСиС»</p><p>Россия, 607060, Нижегородская обл., Выкса, ул. Бр. Баташевых, 45</p><p>Россия, 607060, Нижегородская обл., Выксунский район, п.г.т. Шиморское, ул. Калинина, 206</p></bio><bio xml:lang="en"><p>Dmitrii V. Kudashov, Cand. Sci. (Eng.), Chief Innovation Specialist, JSC “Vyksa Metallurgical Plant”; Director, Vyksa Branch of the National University of Science and Technology “MISIS”</p><p>45 Br. Batashevykh Str., Vyksa, Nizhny Novgorod Region 607060, Russian Federation</p><p>06 Kalinina Str., Shimorskoe, Vyksa District, Nizhny Novgorod Region 607060, Russian Federation</p></bio><email xlink:type="simple">kudashov_dv@vsw.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>АО «Выксунский металлургический завод»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC “Vyksa Metallurgical Plant”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>АО «Выксунский металлургический завод»; Выксунский филиал НИТУ «МИСиС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC “Vyksa Metallurgical Plant”; Vyksa Branch of the National University of Science and Technology “MISIS”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>03</month><year>2023</year></pub-date><volume>66</volume><issue>1</issue><fpage>105</fpage><lpage>111</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ворожева Е.Л., Сметанин К.С., Кислица В.В., Кудашов Д.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Ворожева Е.Л., Сметанин К.С., Кислица В.В., Кудашов Д.В.</copyright-holder><copyright-holder xml:lang="en">Vorozheva E.L., Smetanin K.S., Kislitsa V.V., Kudashov D.V.</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://fermet.misis.ru/jour/article/view/2486">https://fermet.misis.ru/jour/article/view/2486</self-uri><abstract><p>Определен уровень зональных и дендритных сегрегаций в слябах, разлитых по тонкослябовой технологии. Рассчитанные коэффициенты вариации содержания основных и примесных химических элементов по сечению слябов не превышают 10 %, зональные сегрегации невысокие. Содержание марганца, измеренное по площади, занимаемой дендритными осями и междендритными промежутками, показало уровень дендритной сегрегации. Концентрация марганца изменяется от 0,6 до 1,1 % соответственно. Установлено, что использование динамического мягкого обжатия в процессе затвердевания позволяет измельчить первичную дендритную структуру для образования дополнительных центров при фазовом превращении δ-феррита в аустенит. Размеры исходных аустенитных зерен, сформированных с учетом первичной дендритной структуры, в тонком слябе в 3 раза меньше, чем в слябе толщиной более 200 мм. Преобразования дендритной структуры в ходе обжатий показывают высокую прорабатываемость, необходимую для формирования равномерных аустенитных зерен в подкате перед чистовой прокаткой. Исследованием не подтверждена гипотеза о том, что бейнит грубой морфологии в микроструктуре горячекатаного проката образуется в сегрегационных участках. Выявлено наследственное влияние первичной дендритной структуры на структурообразование в ходе прокатки. Концентрация марганца изменяется между бейнитом и «соседней» структурой от 0,68 до 1,01 % подобно уровню исходной дендритной сегрегации. Различие в содержании химических элементов влияет на процессы рекристаллизации аустенитных зерен в ходе высокотемпературной черновой прокатки. Бейнит сформировался в рамках химически «обедненных» крупных аустенитных зерен, устойчивых при фазовом превращении.</p></abstract><trans-abstract xml:lang="en"><p>The article describes the determination of level of zonal and dendritic segregations in slabs cast by thin slab technology. The calculated coefficients of variation of content of main and impurity chemical elements over slab cross-section do not exceed 10 %, while the zonal segregation are moderate. The content of manganese measured by the surface area occupied by dendritic axes and interdendritic spaces determines the level of dendritic segregation. The manganese concentration varies from 0.6 to 1.1 %, respectively. It was established that the dynamic soft reduction during solidification allows the primary dendritic structure to be refined, in order to form additional centers upon phase transformation of δ ferrite into austenite. The sizes of initial austenite grains formed accounting for the primary dendritic structure are 3 times lower in a thin slab than in a slab with the thickness of more than 200 mm. Transformations of dendritic structure during reductions demonstrate the high level of conditioning required for the formation of uniform austenite grains in semifinished rolled stock before finish rolling. The studies did not confirm the hypothesis that bainite of coarse morphology in the microstructure of hot rolled products is formed in segregation sites. The inherited influence of the primary dendritic structure on structure formation during rolling was detected. The manganese concentration varies between bainite and neighboring structure from 0.68% to 1.01% similarly to the level in initial dendritic segregation. The difference in the content of chemical elements influences on recrystallization of austenite grains during high temperature roughing. Bainite was formed in the frames of chemically depleted coarse austenite grains steady upon phase transformation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сляб</kwd><kwd>сегрегация</kwd><kwd>дендритная структура</kwd><kwd>прокат</kwd><kwd>микроструктура</kwd><kwd>бейнит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>slab</kwd><kwd>segregation</kwd><kwd>dendritic structure</kwd><kwd>rolled</kwd><kwd>microstructure</kwd><kwd>bainite</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Мунтин А.В., Частухин А.В., Червонный А.В., Нау­менко В.В., Эфрон Л.И., Рингинен Д.А. Разработка технологии производства рулонного проката трубного назначения класса прочности К60 в условиях литейно-прокатного комплекса. 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