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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">10.17073/0368-0797-2021-8-581-587</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2158</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>ФИЗИКО-ХИМИЧЕСКИЕ ОСНОВЫ МЕТАЛЛУРГИЧЕСКИХ ПРОЦЕССОВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICO-CHEMICAL BASICS OF METALLURGICAL PROCESSES</subject></subj-group></article-categories><title-group><article-title>Прямое микролегирование стали церием под шлаками системы СаО–SiO 2–Ce2O3–15 % Al2O3–8 % MgO дополнительными восстановителями</article-title><trans-title-group xml:lang="en"><trans-title>Direct microalloying of steel with cerium under slags of СаО–SiO 2 – Ce2O3– 15 % Al2O3 –8 % MgO system with additional reducing agents</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6698-5565</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Уполовникова</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Upolovnikova</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Алена Геннадьевна Уполовникова, к.т.н., старший научный сотрудник лаборатории стали и ферросплавов</p><p> 620016, Екатеринбург, ул. Амундсена, 101 </p></bio><bio xml:lang="en"><p>  Alena G. Upolovnikova, Cand. Sci. (Eng.), Senior Researcher of the Laboratory of Steel and Ferroalloys </p><p>101 Amundsena Str., Yekaterinburg 620016 </p></bio><email xlink:type="simple">upol.ru@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0734-6162</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бабенко</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Babenko</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Анатолий Алексеевич Бабенко, д.т.н., главный научный сотрудник лаборатории стали и ферросплавов</p><p> 620016, Екатеринбург, ул. Амундсена, 101 </p></bio><bio xml:lang="en"><p>  Anatolii A. Babenko, Dr. Sci. (Eng.), Chief Researcher of the Laboratory of Steel and Ferroalloys </p><p>101 Amundsena Str., Yekaterinburg 620016 </p></bio><email xlink:type="simple">babenko251@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6324-4032</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнов</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnov</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>  Леонид Андреевич Смирнов, академик РАН, д.т.н., главный научный сотрудник лаборатории стали и ферросплавов</p><p>620016, Екатеринбург, ул. Амундсена, 101 </p></bio><bio xml:lang="en"><p>  Leonid A. Smirnov, Academician, Dr. Sci. (Eng.), Chief Researcher of the Laboratory of Steel and Ferroalloys </p><p>101 Amundsena Str., Yekaterinburg 620016 </p></bio><email xlink:type="simple">uim@ural.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9154-8244</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлова</surname><given-names>Л. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhailova</surname><given-names>L. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Людмила Юрьевна Михайлова, к.т.н., научный сотрудник лаборатории стали и ферросплавов</p><p> 620016, Екатеринбург, ул. Амундсена, 101 </p></bio><bio xml:lang="en"><p> Lyudmila Yu. Mikhailova, Cand. Sci. (Eng.), Research Associate of the Laboratory of Steel and Ferroalloys </p><p> 101 Amundsena Str., Yekaterinburg 620016 </p></bio><email xlink:type="simple">ferrostal@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт металлургии УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy, Ural Branch of the Russian Academy of Science</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>01</day><month>09</month><year>2021</year></pub-date><volume>64</volume><issue>8</issue><fpage>581</fpage><lpage>587</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Уполовникова А.Г., Бабенко А.А., Смирнов Л.А., Михайлова Л.Ю., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Уполовникова А.Г., Бабенко А.А., Смирнов Л.А., Михайлова Л.Ю.</copyright-holder><copyright-holder xml:lang="en">Upolovnikova A.G., Babenko A.A., Smirnov L.A., Mikhailova L.Y.</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/2158">https://fermet.misis.ru/jour/article/view/2158</self-uri><abstract><p>Оценка возможности прямого микролегирования стали церием выполнена с помощью термодинамического моделирования восстановления церия из шлаков системы СаО–SiO2–Ce2O3, содержащих 15 % Аl2O3 и 8 % МgO, дополнительными присадками восстановителей (алюминия или ферросиликоалюминия), при температурах 1550 и 1650 °С с использованием программного комплекса HSC 6.1 Chemistry (Outokumpu). Показано, что в зависимости от дополнительных присадок алюминия или ферросиликоалюминия, температуры металла, основности шлака и содержания оксида церия в металл переходит от 0,228 до 40,5 ppm церия. При дополнительной присадке алюминия из шлака (Y1), содержащего 1,0 % оксида церия, в металл при 1550 °С переходит 0,228 ppm церия. Повышение температуры системы до 1650 °С сопровождается незначительным увеличением концентрации церия, достигающей не более 0,323 ppm. При присадке в металл ферросиликоалюминия содержание церия в металле выше и составляет 0,402 и 0,566 ppm при 1550 и 1650 °С соответственно. При увеличении до 7,0 % концентрации оксида церия в шлаке (Y2) наблюдается более существенный прирост содержания церия в металле, достигающий в диапазоне температур 1550 – 1650 °С, 1,65 – 2,31 ppm с присадками алюминия и 2,90 – 4,05 ppm с присадками ферросиликоалюминия. Наиболее ощутимое повышение содержания церия в металле наблюдается с ростом основности шлака. При формировании шлаков в области основности 2 – 3, содержащих 1 – 7 % Ce2О3, равновесная концентрация церия в металле изменяется от 0,5 до 4 ppm с присадками алюминия и 1 – 7 ppm с присадками ферросиликоалюминия при 1550 °С. Смещение шлаков в область повышенной до 3 – 5 основности сопровождается при содержании 3 – 7 % Ce2О3 повышением равновесной концентрации церия в металле до 4 – 12 ppm с присадками алюминия и 7 – 20 ppm с присадками ферросиликоалюминия и, как следствие, повышением эффективности протекания процесса восстановления церия.</p></abstract><trans-abstract xml:lang="en"><p>An assessment of the possibility of steel direct microalloying with cerium was performed using thermodynamic modeling of cerium reduction from slags of CaO– SiO2– Ce2O3 system containing 15 % Al2O3 and 8 % МgO, additional additives of reducing agents (aluminum or ferrosilicoaluminium), at temperatures of 1550 and 1650 °C using the HSC 6.1 Chemistry (Outokumpu) software package. Depending on the additional additives of aluminum or ferroglycoaluminium, metal temperature, slag basicity and content of cerium oxide, 0.228 to 40.5 ppm of cerium transfers into the metal. With an additional additive of aluminum from slag (Y1) containing 1.0 % of cerium oxide, 0.228 ppm of cerium is transferred to the metal at 1550 °C. An increase in the system temperature to 1650 °C is accompanied by a slight increase in cerium content, reaching no more than 0.323 ppm. When added to ferrosilicoaluminium metal, cerium content in the metal is higher and amounts to 0.402 and 0.566 ppm at 1550 and 1650 °C, respectively. When concentration of cerium oxide in the slag (Y2) increases to 7.0 %, more signifcant increase in cerium content in the metal is observed, reaching in temperature range of 1550 – 1650 °C, 1.65 – 2.31 ppm with aluminum additives and 2.90 – 4.05 ppm with ferrosilicoaluminium additives. The most noticeable increase in cerium content in the metal is observed with an increase in slag basicity. During formation of slags with basicity of 2 – 3, containing 1 – 7 % Ce2O3, the equilibrium concentration of cerium in the metal varies from 0.5 to 4 ppm with aluminum additives and 1 – 7 ppm with ferro­silicoaluminium additives at 1550 °C. Slags transfer to the increased (up to 3 – 5) basicity is accompanied by an increase in the equilibrium content of cerium in the metal to 4 – 12 ppm with aluminum additives and 7 – 20 ppm with ferrosilicoaluminium additives at Ce2O3 content of 3 – 7 % and, as a result, an increase in efciency of cerium reduction process.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сталь</kwd><kwd>церий</kwd><kwd>шлак</kwd><kwd>основность</kwd><kwd>оксид церия</kwd><kwd>фазовый состав</kwd><kwd>планирование эксперимента</kwd><kwd>термодинамическое моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>steel</kwd><kwd>gray</kwd><kwd>slag</kwd><kwd>basicity</kwd><kwd>cerium oxide</kwd><kwd>phase composition</kwd><kwd>experiment planning</kwd><kwd>thermodynamic modeling</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке гранта РФФИ № 19­08­00825</funding-statement><funding-statement xml:lang="en">The work was supported by the Russian Foundation for Basic Research, grant No. 19­08­00825</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">Гольдштейн Я.Г., Ефимова Л.Б. 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