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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-2024-4-45-54</article-id><article-id custom-type="elpub" pub-id-type="custom">powder-908</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>Тугоплавкие, керамические и композиционные материалы</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Refractory, Ceramic, and Composite Materials</subject></subj-group></article-categories><title-group><article-title>Дисперсное упрочнение порошковой быстрорежущей стали Р6М5К5 частицами СВС-керамики MoSi2–MoB–HfB2</article-title><trans-title-group xml:lang="en"><trans-title>Dispersion strengthening of powder high-speed steel R6M5K5 with particles of SHS ceramics MoSi2–MoB–HfB2</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1606-838X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ахметов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Akhmetov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аманкельды Серикбаевич Ахметов – инженер научного проекта, кафедра порошковой металлургии и функциональных покрытий (ПМиФП)</p><p>Россия, 119049, г. Москва, Ленинский пр-т, 4, стр. 1</p></bio><bio xml:lang="en"><p>Amankeldy S. Akhmetov – Scientific Project Engineer, Department of Powder Metallurgy and Functional Coatings (PM&amp;FC)</p><p>4 bld. 1 Leninskiy Prosp., Moscow 119049, Russia</p></bio><email xlink:type="simple">aman1aotero@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/0000-0001-6719-6237</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Муканов</surname><given-names>С. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Mukanov</surname><given-names>S. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Самат Куандыкович Муканов – к.т.н., мл. науч. сотрудник лаборатории «In situ диагностика структурных превращений» Научно-учебного центра СВС</p><p>Россия, 119049, г. Москва, Ленинский пр-т, 4, стр. 1</p></bio><bio xml:lang="en"><p>Samat K. Mukanov – Cand. Sci. (Eng.), Junior Research Scientist, Laboratory “In situ Diagnostics of Structural Transformations”, Scien­tific Educational Center of Self–Propagating High-Temperature Synthesis</p><p>4 bld. 1 Leninskiy Prosp., Moscow 119049, Russia</p></bio><email xlink:type="simple">sam-mukanov@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/0000-0002-1294-9198</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самошина</surname><given-names>М. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Samoshina</surname><given-names>M. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Юрьевич Лопатин – к.т.н., доцент кафедры ПМиФП</p><p>Россия, 119049, г. Москва, Ленинский пр-т, 4, стр. 1</p></bio><bio xml:lang="en"><p>Vladimir Yu. Lopatin – Cand. Sci. (Eng.), Associate Professor, Department of PM&amp;FC</p><p>4 bld. 1 Leninskiy Prosp., Moscow 119049, Russia</p></bio><email xlink:type="simple">lopatin63@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/0009-0000-2773-3122</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лопатин</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Lopatin</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марина Евгеньевна Самошина – к.т.н., начальник отдела ученых степеней, ученый секретарь диссертационного совета</p><p>Россия, 119049, г. Москва, Ленинский пр-т, 4, стр. 1</p></bio><bio xml:lang="en"><p>Marina E. Samoshina – Cand. Sci. (Eng.), Head of the Division of Academic Degrees, Academic Secretary of the Dissertation Board</p><p>4 bld. 1 Leninskiy Prosp., Moscow 119049, Russia</p></bio><email xlink:type="simple">samoshina@list.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/0000-0002-1790-5004</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Еремеева</surname><given-names>Ж. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Eremeeva</surname><given-names>Zh. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жанна Владимировна Еремеева – д.т.н., профессор кафедры ПМиФП</p><p>Россия, 119049, г. Москва, Ленинский пр-т, 4, стр. 1</p></bio><bio xml:lang="en"><p>Zhanna V. Eremeeva – Dr. Sci. (Eng.), Professor, Department of PM&amp;FC</p><p>4 bld. 1 Leninskiy Prosp., Moscow 119049, Russia</p></bio><email xlink:type="simple">eremeeva-shanna@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСИС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology “MISIS”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>28</day><month>08</month><year>2024</year></pub-date><volume>18</volume><issue>4</issue><fpage>45</fpage><lpage>54</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ахметов А.С., Муканов С.К., Самошина М.Е., Лопатин В.Ю., Еремеева Ж.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ахметов А.С., Муканов С.К., Самошина М.Е., Лопатин В.Ю., Еремеева Ж.В.</copyright-holder><copyright-holder xml:lang="en">Akhmetov A.S., Mukanov S.K., Samoshina M.E., Lopatin V.Y., Eremeeva Z.V.</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://powder.misis.ru/jour/article/view/908">https://powder.misis.ru/jour/article/view/908</self-uri><abstract><p>Исследована возможность дисперсного упрочнения порошковой быстрорежущей стали Р6М5К5 частицами гетерофазной керамики MoSi2–MoB–HfB2 . В качестве исходного материала использованы: механически легированная порошковая смесь со средним размером частиц d = 10 мкм; измельченная порошковая керамическая добавка (d = 5 мкм), полученная методом самораспространяющегося высокотемпературного синтеза (СВС). Смешивание осуществлялось в планетарной центробежной мельнице. В результате получены частицы порошковой смеси размером 2–25 мкм, по форме, близкой к округлой, более крупные частицы представляли собой агломераты. Проведены холодное прессование и спекание с достижением плотности до 92,7 % и твердости 62 HRA, а также горячее прессование с плотностью заготовки 97,2 % и твердостью 65 HRC. Горячепрессованная заготовка имела прочность на изгиб 1141 МПа и на сжатие 2157 МПа. Показана перспективность применения гетерофазной керамики в качестве упрочняющей добавки, которая способствует снижению температуры образования жидкой фазы и образует ярко выраженную гетерогенную микроструктуру, схожую с микроструктурой металлостеклянных материалов. Матрица – твердый раствор на основе железа (со средним размером зерен 14–34 мкм) с сеткой из эвтектического карбида Мe6С и включениями керамической добавки в виде соединений HfO2 , SiO2 и HfSiO4 . Это обеспечило уменьшение в 2 раза приведенного износа при трибологических испытаниях в паре с контртелом из твердого сплава ВК6. Полученный композиционный материал, продемонстрировавший высокую красностойкость, может найти применение в изготовлении износостойких изделий, эксплуатируемых при температурах до 630 °C.</p></abstract><trans-abstract xml:lang="en"><p>The possibility of dispersion strengthening of powder high-speed steel R6M5K5 with MoSi2–MoB–HfB2 heterophase ceramics particles was investigated. A mechanically alloyed powder mixture with an average particle size of d = 10 µm was used as the base material; the ceramic powder additive (d = 5 µm), obtained by the SHS method, was also used. Mixing was carried out in a high plane­tary ball mill. As a result, powder mixture particles with sizes of 2–25 µm were obtained, close to spherical in shape, with larger particles being agglomerates. Cold pressing and sintering were performed, achieving a density of up to 92.7 % and a hardness of 62 HRA, as well as hot pressing with a density of 97.2 % and a hardness of 65 HRC. The hot-pressed billet had a bending strength of 1141 MPa and a compressive strength of 2157 MPa. The prospects of using heterophase ceramics as a strengthening additive was shown, which contributes to lowering the temperature of the liquid phase formation and creates a pronounced heterogeneous microstructure, similar to the microstructure of metallic glass materials. The matrix is a solid solution based on iron (with an average grain size of 14–34 µm) with a network of eutectic carbide Me6C and ceramic additive inclusions in the form of HfO2 , SiO2 , and HfSiO4 compounds. This provided a twofold reduction in wear during tribological tests against a counterbody made of VK6 hard alloy. The obtained composite material, demonstrating high red hardness, may find application in the production of wear-resistant products operating at temperatures up to 630 °C.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>быстрорежущая сталь</kwd><kwd>порошковая металлургия</kwd><kwd>дисперсное упрочнение</kwd><kwd>керамика</kwd><kwd>трибология</kwd><kwd>износ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>high-speed steel</kwd><kwd>powder metallurgy</kwd><kwd>dispersion hardening</kwd><kwd>ceramics</kwd><kwd>tribology</kwd><kwd>wear</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 23-49-00141, https://rscf.ru/project/23-49-00141/</funding-statement><funding-statement xml:lang="en">The research was supported by the Russian Science Foundation grant No. 23-49-00141, https://rscf.ru/project/23-49-00141/</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">Костиков В.И., Еремеева Ж.В. 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