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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">10.17073/0368-0797-2024-3-360-365</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2740</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>Физико-химические процессы азотирования ферросиликохрома в режиме фильтрационного горения</article-title><trans-title-group xml:lang="en"><trans-title>Physical and chemical processes during nitriding of chromium ferrosilicon by filtration combustion</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6772-8192</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Болгару</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bolgaru</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Александрович Болгару, к.т.н., старший научный сотрудник</p><p>Россия, 634055, Томск, Академический пр., 10/4</p></bio><bio xml:lang="en"><p>Konstantin A. Bolgaru, Cand. Sci. (Eng.), Senior Researcher</p><p>10/4 Akademicheskii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">kbolgaru2008@yandex.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/0000-0001-5269-8576</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Регер</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Reger</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Андреевич Регер, младший научный сотрудник</p><p>Россия, 634055, Томск, Академический пр., 10/4</p></bio><bio xml:lang="en"><p>Anton A. Reger, Junior Researcher</p><p>10/4 Akademicheskii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">regerwork1@gmail.com</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>Верещагин</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Vereshchagin</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Иванович Верещагин, д.т.н., профессор</p><p>Россия, 634050, Томск, пр. Ленина, 30</p></bio><bio xml:lang="en"><p>Vladimir I. Vereshchagin, Dr. Sci. (Eng.), Prof.</p><p>30 Lenina Ave., Tomsk 634050, Russian Federation</p></bio><email xlink:type="simple">vver@tpu.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7020-969X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Акулинкин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Akulinkin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Александрович Акулинкин, младший научный сотрудник</p><p>Россия, 634055, Томск, Академический пр., 10/4</p></bio><bio xml:lang="en"><p>Aleksandr A. Akulinkin, Junior Researcher</p><p>10/4 Akademicheskii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">akulinkinalex@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Томский научный центр Сибирского отделения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tomsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский Томский политехнический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Tomsk Polytechnic University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>16</day><month>06</month><year>2024</year></pub-date><volume>67</volume><issue>3</issue><fpage>360</fpage><lpage>365</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Болгару К.А., Регер А.А., Верещагин В.И., Акулинкин А.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Болгару К.А., Регер А.А., Верещагин В.И., Акулинкин А.А.</copyright-holder><copyright-holder xml:lang="en">Bolgaru K.A., Reger A.A., Vereshchagin V.I., Akulinkin A.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://fermet.misis.ru/jour/article/view/2740">https://fermet.misis.ru/jour/article/view/2740</self-uri><abstract><p>В работе изучены процессы азотирования ферросиликохрома в режиме горения в условиях естественной фильтрации азота и представлены результаты исследования влияния основных параметров синтеза (давление газообразного азота, диаметр образцов и размер исходных частиц) на максимальную температуру и процесс горения исходной порошковой шихты. Горение ферросиликохрома протекает устойчиво в стационарном режиме с образованием макрооднородной азотированной композиции, которая по результатам рентгенофазового анализа содержит в своём составе две нитридные фазы – нитрид хрома и нитрид кремния. Взаимодействие исходного порошка с газообразным азотом в режиме фильтрационного горения протекает по следующей вероятной химической реакции: 3CrSi2 + 3Si + 3FeSi2 + 11,5N2 = 3CrN + 5Si3N4 + 3Fe. Увеличение диаметра исходных образцов незначительно влияет на количество поглощеного азота и приводит к замедлению продвижения фронта волны горения. При повышении давления газообразного реагента наблюдается увеличение количества поглощенного азота и скорости горения. Более тонкое измельчение исходного порошка позволяет увеличить коли­чество поглощенного азота и скорость горения. Определено, что при уплотнении исходного образца реализовать реакцию горения невозможно. Максимальная температура горения в зависимости от условий азотирования изменяется в пределах от 2400 до 2650 °С и повышается при увеличении давления газообразного азота, диаметра исходных образцов и дисперсности порошка ферросиликохрома. Реализовать азотирование ферросиликохрома в режиме горения возможно при давлении газообразного азота не менее 3 МПа, диаметре исходных образцов не менее 3,5 см и размере исходных частиц не более 100 мкм. Оптимальными параметрами азотирования ферросиликохрома является давление газообразного азота 5 МПа, диаметр образцов 5 см, размер исходных частиц менее 100 мкм и насыпная плотность порошка 2,23 г/см3.</p></abstract><trans-abstract xml:lang="en"><p>In this paper, the nitriding of chromium ferrosilicon is carried out in the combustion mode under the condition of natural nitrogen filtration. The authors studied the effect of the key parameters (pressure of gaseous nitrogen, diameter and dispersity of starting samples) on the maximum temperature and combustion of the starting powder mixture based on chromium ferrosilicon. The combustion synthesis of chromium ferrosilicon proceeds steadily in the stationary mode with formation of a macrohomogeneous nitrided composition which, according to the results of X-ray phase analysis, contains two nitride phases - chromium nitride and silicon nitride. Interaction of the initial powder with gaseous nitrogen in the filtration combustion mode proceeds by the following probable chemical reaction: 3CrSi2 + 3Si + 3FeSi2 + 11.5N2 = 3CrN + 5Si3N4 + 3Fe. Increasing the diameter of the starting samples slightly affects the amount of absorbed nitrogen and slows the propagation of the combustion wave front. An increase in the pressure of gaseous nitrogen increases the amount of absorbed nitrogen and the combustion rate. Increasing the dispersity of the starting powder increases the amount of absorbed nitrogen and the combustion rate. It was found that the combustion reaction is not possible with a dense initial sample. The maximum combustion temperature, depending on the nitriding conditions, varies between 2400 and 2650 °C and increases with increasing gaseous nitrogen pressure, diameter of the initial samples and dispersion of chromium ferrosilicon powder. It is possible to realize nitriding of chrome ferrosilicon in the combustion mode at the pressure of gaseous nitrogen not less than 3 MPa, diameter of initial samples not less than 3.5 cm and size of initial particles not more than 100 μm. Optimal parameters of nitriding are gaseous nitrogen pressure of 5 MPa, diameter of samples 5 cm, size of initial particles less than 100 μm and bulk density of samples (2.23 g/cm3).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>самораспространяющийся высокотемпературный синтез</kwd><kwd>фильтрационное горение</kwd><kwd>азотирование</kwd><kwd>нитриды</kwd><kwd>ферросплав</kwd><kwd>порошковая металлургия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>self-propagating high-temperature synthesis</kwd><kwd>combustion synthesis</kwd><kwd>nitriding</kwd><kwd>nitrides</kwd><kwd>ferroalloy</kwd><kwd>powder metallurgy</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">Чухломина Л.Н., Витушкина О.Г. СВС-азотирование ферросилиция в присутствии ильменита. Известия вузов. 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