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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">10.17073/0368-0797-2023-4-471-478</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2585</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>Физические свойства и структура борсодержащих шлаков восстановительного периода АКР-процесса</article-title><trans-title-group xml:lang="en"><trans-title>Physical properties and structure of boron-containing slags during reduction period of AOD process</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0852-1161</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шартдинов</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Shartdinov</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Руслан Рафикович Шартдинов, младший научный сотрудник лаборатории стали и ферросплавов</p><p>Россия, 620016, Свердловская обл., Екатеринбург, ул. Амудсена, 101</p></bio><bio xml:lang="en"><p>Ruslan R. Shartdinov, Junior Researcher of the Laboratory of Steel and Ferroalloys</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">rr.shartdinov@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/0000-0003-0734-6162</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., профессор, ведущий научный сотрудник</p><p>Россия, 620016, Свердловская обл., Екатеринбург, ул. Амудсена, 101</p></bio><bio xml:lang="en"><p>Anatolii A. Babenko, Dr. Sci. (Eng.), Prof., Chief Researcher of the Laboratory of Steel and Ferroalloys</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</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/0000-0002-6698-5565</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>Россия, 620016, Свердловская обл., Екатеринбург, ул. Амудсена, 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, Russian Federation</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/0000-0001-9206-0905</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сметанников</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Smetannikov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Артем Николаевич Сметанников, младший научный сотрудник лаборатории стали и ферросплавов</p><p>Россия, 620016, Свердловская обл., Екатеринбург, ул. Амудсена, 101</p></bio><bio xml:lang="en"><p>Artem N. Smetannikov, Junior Researcher of the Laboratory of Steel and Ferroalloys</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">artem.smetannikov.89@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт металлургии Уральского отделения Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy, Ural Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>19</day><month>08</month><year>2023</year></pub-date><volume>66</volume><issue>4</issue><fpage>471</fpage><lpage>478</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шартдинов Р.Р., Бабенко А.А., Уполовникова А.Г., Сметанников А.Н., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Шартдинов Р.Р., Бабенко А.А., Уполовникова А.Г., Сметанников А.Н.</copyright-holder><copyright-holder xml:lang="en">Shartdinov R.R., Babenko A.A., Upolovnikova A.G., Smetannikov A.N.</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/2585">https://fermet.misis.ru/jour/article/view/2585</self-uri><abstract><p>Влияние основности и содержания оксида бора на вязкость, температуру кристаллизации, фазовый состав и структуру безфтористых шлаков системы СаО – SiO2 – B2O3 – 12 % Cr2O3 – 3 % Аl2O3 – 8 % МgO в диапазоне содержания оксида бора от 3 до 6 % и основности 1,0 – 2,5 были изучены посредством вибрационной вискозиметрии, термодинамического моделирования фазового состава (HSC Chemistry 6.12 (Outokumpu)) и рамановской спектроскопии. Было установлено, что физические свойства изучаемых шлаков главным образом зависят от баланса между степенью полимеризации структуры, природы связи в ней и фазового состава. При низкой основности (примерно 1,0) шлаки являются «длинными» и рост содержания оксида бора с 3 до 6 % делает их более легкоплавкими, снижая температуру кристаллизации шлака с 1340 до 1224 °С, а вязкость – с 1,0 – 0,8 примерно до 0,25 Па·с при температуре 1600 – 1660 °С, несмотря на значительное усложнение структуры, отражающееся в росте показателя мостикового кислорода BO с 1,10 до 1,49. С повышением основности шлаки из «длинных» переходят в «короткие». Растет содержание оксида кальция, который, являясь донором свободных ионов кислорода (O2–), выступает в роли модификатора структуры шлака. При основности B = (CaO/SiO2) = 2,5 шлаки обладают более простой структурой (BO = 0,50 – 0,53) относительно шлаков с основностью 1,0, при этом добавление оксида бора усложняет ее лишь незначительно (рост показателя BO с 0,50 до 0,53). Увеличение концентрации B2O3 понижает температуру кристаллизации с 1674 до 1605 °С и вязкость – с 1,0 до 0,3 Па·с при температуре 1660 °С в результате образования легкоплавких соединений (2CaO·B2O3 ).</p></abstract><trans-abstract xml:lang="en"><p>The effect of basicity and content of boron oxide on viscosity, crystallization temperature, phase composition, and structure of the СаО – SiO2 – B2O3 – 12 % Cr2O3 – 3 % Аl2O3 – 8 % МgO fluorine-free slag system in the range of boron oxide content 3 – 6 % and basicity 1.0 – 2.5 is studied by vibrational viscometry, thermodynamic phase composition modeling (HSC Chemistry 6.12 (Outokumpu)), and Raman spectroscopy. It was found that physical properties of the studied slags mainly depend on the balance between the degree of structure polymerization, nature of the bond with it, and phase composition. With a low basicity of 1.0, slags are “long” and an increase in the content of boron oxide from 3 to 6 % makes them more fusible, reducing the crystallization temperature of the slag from 1340 to 1224 °C, and its viscosity from 1.0 – 0.8 to ~0.25 Pa·s at 1600 – 1660 °C, despite the significant complication of the structure, reflected in the growth of the bridging oxygen index BO from 1.10 to 1.49. With an increase in basicity, slags transfer from “long” to “short” and the content of calcium oxide increases, which, being a donor of free oxygen ions (O2–), acts as a modifier of the slag structure. Thus, with a basicity of B = (CaO/SiO2) = 2.5, slags have a simpler structure (BO = 0.50 – 0.53) relative to slags with a basicity of 1.0, while the addition of boron oxide complicates it only slightly (an increase in BO from 0.5 up to 0.53). Increasing the concentration of B2O3 lowers the crystallization temperature from 1674 to 1605 °C and the viscosity from 1.0 to 0.3 Pa·s at 1660 °C as a result of the formation of low-melting compounds (mostly 2CaO·B2O3).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>АКР-шлак</kwd><kwd>оксид бора</kwd><kwd>оксид хрома</kwd><kwd>структура</kwd><kwd>вязкость</kwd><kwd>фазовый состав</kwd><kwd>температура кристаллизации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>AOD-slag</kwd><kwd>boron oxide</kwd><kwd>chromium oxide</kwd><kwd>structure</kwd><kwd>viscosity</kwd><kwd>phase composition</kwd><kwd>crystallization temperature</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках исполнения государственного задания Института металлургии Уральского отделения Российской академии наук с использованием оборудования ЦКП «Состав вещества» Института высокоточной электроники Уральского отделения Российской академии наук.</funding-statement><funding-statement xml:lang="en">The work was performed as part of the state task of the Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences using the equipment of the CCP “Composition of Matter” of the Institute of High-Precision Electronics of the Ural Branch of the Russian Academy of Sciences.</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">Токовой О.К. 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