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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">powder</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Порошковая металлургия и функциональные покрытия</journal-title><trans-title-group xml:lang="en"><trans-title>Powder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-308X</issn><issn pub-type="epub">2412-8767</issn><publisher><publisher-name>НИТУ "МИСИС"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/1997-308X-2023-2-5-13</article-id><article-id custom-type="elpub" pub-id-type="custom">powder-783</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>Теория и процессы формования и спекания порошковых материалов</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Theory and Processes of Formation and Sintering of Powder Materials</subject></subj-group></article-categories><title-group><article-title>Роль примесей в изменении фазового состава в системе Al–Fe–C при спекании</article-title><trans-title-group xml:lang="en"><trans-title>The impact of impurities on the Al–Fe–C system phase composition changes during sintering</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4363-3604</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коростелева</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Korosteleva</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Николаевна Коростелева – кандидат технических наук, старший научный сотрудник ИФПМ СО РАН.</p><p>634055, Томск, Академический пр-т, 2/46</p></bio><bio xml:lang="en"><p>Elena N. Korosteleva – Cand. Sci. (Eng.), Senior Research Scientist.</p><p>2/4 Akademicheskii Prosp., Tomsk 634055</p></bio><email xlink:type="simple">anna-knyazeva@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/0000-0002-9765-7695</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Князева</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Knyazeva</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анна Георгиевна Князева – доктор физико-математических наук, профессор, главный научный сотрудник ИФПМ СО РАН.</p><p>634055, Томск, Академический пр-т, 2/46</p></bio><bio xml:lang="en"><p>Anna G. Knyazeva – Dr. Sci. (Phys.­Math.), Professor, Chief Research Scientist, ISPMS SB RAS.</p><p>2/4 Akademicheskii Prosp., Tomsk 634055</p></bio><email xlink:type="simple">anna-knyazeva@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/0000-0002-5312-2496</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Анисимова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Anisimova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мария Александровна Анисимова – кандидат физико-математических наук, младший научный сотрудник ИФПМ СО РАН.</p><p>634055, Томск, Академический пр-т, 2/46</p></bio><bio xml:lang="en"><p>Maria A. Anisimova – Cand. Sci. (Phys.­Math.), Junior Research Scientist, ISPMS SB RAS.</p><p>2/4 Akademicheskii Prosp., Tomsk 634055</p></bio><email xlink:type="simple">anmariia@ispms.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/0000-0003-4529-6477</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Николаев</surname><given-names>И. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaev</surname><given-names>I. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иван Олегович Николаев – инженер ИФПМ СО РАН.</p><p>634055, Томск, Академический пр-т, 2/46</p></bio><bio xml:lang="en"><p>Ivan O. Nikolaev – Engineer, ISPMS SB RAS.</p><p>2/4 Akademicheskii Prosp., Tomsk 634055</p></bio><email xlink:type="simple">rmkast97@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт физики прочности и материаловедения Сибирского отделения РАН<country>Россия</country></aff><aff xml:lang="en">Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>05</day><month>06</month><year>2023</year></pub-date><volume>17</volume><issue>2</issue><fpage>5</fpage><lpage>13</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; НИТУ "МИСИС", 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">НИТУ "МИСИС"</copyright-holder><copyright-holder xml:lang="en">НИТУ "МИСИС"</copyright-holder><license xlink:href="https://powder.misis.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://powder.misis.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://powder.misis.ru/jour/article/view/783">https://powder.misis.ru/jour/article/view/783</self-uri><abstract><p>Эффективное использование материальных ресурсов заставляет активнее обращать внимание на отходы производства с целью не только простой их утилизации, но и их использования в качестве источника некоторых элементов и как компонентов порошковых материалов. Стальная стружка – сложный многокомпонентный материал на основе железа. Наличие примеси, например углерода, может оказывать влияние на диффузионное взаимодействие смеси стружки с порошком другого металла. В данной работе рассмотрен один из возможных вариантов диффузионного взаимодействия алюминия и стальной стружки в условиях вакуумного спекания с регулируемым нагревом. После спекания был проведен микроанализ структуры и определен фазовый состав продуктов взаимодействия. Выявлено, что в процессе спекания формируется многофазная структура, в которой не менее 30 % объема занимает алюминид железа FeAl. Несмотря на достаточно высокие температуры, фиксируются остатки алюминия и железа. Среди причин неполного превращения могут быть тугоплавкие продукты взаимодействия, тормозящие диффузию, а также примеси, влияющие на величину и направленность диффузионных потоков. Для подтверждения важной роли примесей в кинетике диффузионного взаимодействия рассмотрены модельные задачи роста интерметаллидной фазы между частицей плоской или сферической формы с окружающим ее алюминием. Учитывается появление перекрестных диффузионных потоков в области растущей фазы и, возможно, влияние примеси на концентрационный предел существования новой фазы. Найдены приближенные аналитические решения, которые позволяют проанализировать динамику роста области, занимаемой растущей фазой, в зависимости от параметров модели.</p></abstract><trans-abstract xml:lang="en"><p>Manufacturing waste can be not only recycled but also utilized as a source of chemical elements and as a component of powder materials. Steel swarf are a complex multicomponent material with a high iron content, while impurities such as carbon can affect the diffusion interaction in the chip and metal powder mixture. In this study, we investigate the diffusion interaction between aluminum and steel swarf using temperature-controlled vacuum sintering. We analyzed the resulting mixture’s microstructure and phase composition, and observed that sintering creates a multiphase structure in which FeAl iron aluminide occupies at least 30 vol. %. Despite the high sintering temperature, we also observed residual aluminum and iron. Incomplete transformation may result form refractory products that inhibit diffusion or impurities that influence the magnitude and direction of the diffusion fluxes. To confirm the impurities’ role in the diffusion interaction kinetics, we developed simulation models of the intermetallic phase growth for a flat and spherical particle embedded in aluminum. The model consider cross-diffusion fluxes in the emerging phase regions and possible effects of impurities on the concentration limit for the new phase’s existence. We derived approximate analytical solutions to analyze the emerging phase growth trends under various model parameters.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>металлическая стружка</kwd><kwd>реакционное спекание</kwd><kwd>диффузионное взаимодействие</kwd><kwd>интерметаллидная фаза</kwd><kwd>эксперимент</kwd><kwd>моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>metal swarf</kwd><kwd>reaction sintering</kwd><kwd>diffusion interaction</kwd><kwd>intermetallide phase</kwd><kwd>tests</kwd><kwd>simulation</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование выполнено при финансовой поддержке Российского научного фонда и субсидии администрации Томской области, грант № 22-13-20031, https://rscf.ru/project/22-13-20031/</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>This study is supported by the Russian Science Foundation and the Tomsk Oblast Administration, Grant No. 22-13-20031, https://rscf.ru/project/22-13-20031/</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">Ровин С.Л., Калиниченко А.С., Ровин Л.Е. 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