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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">10.17073/0368-0797-2023-2-206-214</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2516</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>Раскислительная способность алюминия в железо-марганцевых углеродсодержащих расплавах</article-title><trans-title-group xml:lang="en"><trans-title>Deoxidation capacity of aluminum in ferromanganese carbon-containing melts</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8581-1475</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макровец</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Makrovets</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лариса Александровна Макровец, инженер кафедры материа­ловедения и физико-химии материалов</p><p>Россия, 454080, Челябинск, пр. Ленина, 76</p></bio><bio xml:lang="en"><p>Larisa A. Makrovets, Engineer of the Chair of Materials Science and Physical Chemistry of Materials</p><p>76 Lenina Ave., Chelyabinsk 454080, Russia</p></bio><email xlink:type="simple">makrovetcla@susu.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/0000-0002-9514-3201</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самойлова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Samoilova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Владимировна Самойлова, к.х.н., старший научный сотрудник кафедры материаловедения и физико-химии материалов</p><p>Россия, 454080, Челябинск, пр. Ленина, 76</p></bio><bio xml:lang="en"><p>Ol’ga V. Samoilova, Cand. Sci. (Chem.), Senior Researcher of the Chair of Materials Science and Physical Chemistry of Materials</p><p>76 Lenina Ave., Chelyabinsk 454080, Russia</p></bio><email xlink:type="simple">samoylova_o@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/0000-0001-5535-4875</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлов</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhailov</surname><given-names>G. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Геннадий Георгиевич Михайлов, д.т.н., профессор, старший научный сотрудник кафедры материаловедения и физико-химии материалов</p><p>Россия, 454080, Челябинск, пр. Ленина, 76</p></bio><bio xml:lang="en"><p>Gennadii G. Mikhailov, Dr. Sci. (Eng.), Prof., Senior Researcher of the Chair of Materials Science and Physical Chemistry of Materials</p><p>76 Lenina Ave., Chelyabinsk 454080, Russia</p></bio><email xlink:type="simple">mikhailovgg@susu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Южно-Уральский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>South Ural State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>06</day><month>06</month><year>2023</year></pub-date><volume>66</volume><issue>2</issue><fpage>206</fpage><lpage>214</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Макровец Л.А., Самойлова О.В., Михайлов Г.Г., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Макровец Л.А., Самойлова О.В., Михайлов Г.Г.</copyright-holder><copyright-holder xml:lang="en">Makrovets L.A., Samoilova O.V., Mikhailov G.G.</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/2516">https://fermet.misis.ru/jour/article/view/2516</self-uri><abstract><p>Раскисление (снижение концентрации растворенного в жидком металле кислорода) является неотъемлемой частью технологии производства сталей. Для получения глубоко раскисленного металла на металлургических предприятиях применяется в основном алюминий. Необходимо учитывать, что легирующие элементы сталей и сплавов при определенных условиях могут выступать как элементы-раскислители, внося вклад в комплексный характер процесса раскисления. Практически все стали содержат марганец в той или иной концентрации. Изучение процессов взаимодействия в системе Fe – Mn – Al – O – С при температурах сталеварения имеет прикладное значение. В настоящей работе проводится термодинамический анализ раскислительной способности алюминия в кислородсодержащих железо-марганцевых расплавах. При этом учитывается влияние углерода на ход процесса раскисления. Эффективным в исследовании является применение методики построения поверхности растворимости компонентов в металле (ПРКМ) – диаграммы, которая связывает составы жидкого металла с составами сопряженных неметаллических фаз. В ходе настоящей работы были рассчитаны изотермы растворимости кислорода в системе Fe – Mn – O для интервала температур 1550 – 1650 °С. Для системы Fe – Mn – Al – O – С (1600 °С) построены изосоставные сечения ПРКМ при фиксированных концентрациях углерода в стали [C] = 0; 0,1; 0,4; 0,8 и 1,2 % (здесь и далее по массе). При одновременном присутствии марганца и алюминия в кислородсодержащем расплаве на основе железа (при промышленно значимых концентрациях [Al] 0,001 – 0,010 % и [Mn] менее 1,0 %) алюминий в жидком металле будет выступать как раскисляющий агент, а в качестве продуктов взаимодействия будут образовываться включения корунда. Комплексное раскисление алюминием и марганцем с образованием шпинели характерно только для легированных марганцем сталей, где концентрация марганца составляет более 1,5 %.</p></abstract><trans-abstract xml:lang="en"><p>Deoxidation (reduction of oxygen concentration dissolved in liquid metal) is an integral part of steel production technology. For obtaining deeply deoxidized metal, mainly aluminum is used at metallurgical enterprises. It should be taken into account that alloying elements of steels and alloys under certain conditions can act as deoxidizing elements, contributing to the complex nature of the deoxidation process. Almost all steels contain manganese in one concentration or another. The study of interaction processes in the Fe – Mn – Al – O – C system at steelmaking temperatures is of applied importance. In this paper, a thermodynamic analysis of the deoxidation ability of aluminum in oxygen-containing iron-manganese melts was carried out. At the same time, influence of carbon on course of the deoxidation process was taken into account. In the study, it is effective to use a technique for constructing the solubility surface of components in metal (SSCM) – a diagram that connects the compositions of liquid metal with the compositions of conjugated non-metallic phases. In the course of this work, oxygen solubility isotherms in the Fe – Mn – O system were calculated for the temperature range of 1550 – 1650 °C. For the Fe – Mn – Al – O – C (1600 °C) system, composite sections of the SSCM were constructed at fixed carbon concentrations in steel [C] = 0; 0.1; 0.4; 0.8 and 1.2 % (hereafter by weight). It is shown that with the simultaneous presence of manganese and aluminum in an oxygen–containing iron-based melt (at industrially significant concentrations [Al] = 0.001 – 0.010 % and [Mn] – less than 1.0 %), aluminum in the liquid metal will act as a deoxidizing agent, and corundum inclusions will be formed as interaction products. Complex deoxidation by aluminum and manganese with the formation of spinel is typical only for manganese-alloyed steels, where the concentration of manganese is more than 1.5 %.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>термодинамическое моделирование</kwd><kwd>раскислительная способность</kwd><kwd>железо-марганцевый расплав</kwd><kwd>алюминий</kwd></kwd-group><kwd-group xml:lang="en"><kwd>thermodynamic modeling</kwd><kwd>deoxidation capacity</kwd><kwd>iron-manganese melt</kwd><kwd>aluminum</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">Paek M.K., Jang J.M., Kang Y.B., Pak J.J. Aluminum deoxidation equilibria in liquid iron: Part I. Experimental. Metallurgical and Materials Transactions B. 2015;46(4): 1826–1836. https://doi.org/10.1007/s11663-015-0368-0</mixed-citation><mixed-citation xml:lang="en">Paek M.K., Jang J.M., Kang Y.B., Pak J.J. 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