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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-2024-4-35-44</article-id><article-id custom-type="elpub" pub-id-type="custom">powder-907</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>Особенности фазовых превращений, формирования микроструктуры и магнитных свойств гистерезисного сплава на основе системы Fe–Cr–Co–Mo, легированного Sm, Zr и Cu</article-title><trans-title-group xml:lang="en"><trans-title>Phase transformations, microstructure formation, and magnetic properties of a hysteresis alloy based on the Fe–Cr–Co–Mo system doped with Sm, Zr, and Cu</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6599-5091</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бельтюкова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Beltyukova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мария Александровна Бельтюкова – аспирант кафедры «Металловедение, термическая и лазерная обработка металлов»</p><p>Россия, 614990, г. Пермь, Комсомольский пр-т, 29</p></bio><bio xml:lang="en"><p>Maria A. Beltyukova – Postgraduate Student of the Department of Metal Science, Thermal and Laser Processing of Metals</p><p>29 Komsomolskiy Prosp., Perm 614990, Russia</p></bio><email xlink:type="simple">marievamar@rambler.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/0000-0002-2723-964X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шацов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shatsov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Аронович Шацов – д.т.н., профессор кафедры «Металловедение, термическая и лазерная обработка металлов»</p><p>Россия, 614990, г. Пермь, Комсомольский пр-т, 29</p></bio><bio xml:lang="en"><p>Alexander A. Shatsov – Dr. Sci. (Eng.), Professor of the Department “Metal science, heat and laser treatment of metals”</p><p>29 Komsomolskiy Prosp., Perm 614990, Russia</p></bio><email xlink:type="simple">shatsov@pstu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Пермский национальный исследовательский политехнический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Perm National Research Polytechnic University Russia</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>35</fpage><lpage>44</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бельтюкова М.А., Шацов А.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Бельтюкова М.А., Шацов А.А.</copyright-holder><copyright-holder xml:lang="en">Beltyukova M.A., Shatsov 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://powder.misis.ru/jour/article/view/907">https://powder.misis.ru/jour/article/view/907</self-uri><abstract><p>Разработка новых магнитотвердых материалов (МТМ) важна для удовлетворения постоянно растущих требований промышленности. Сегодня развитие энергетической, электротехнической и приборостроительной отраслей требует от производителей изделий из МТМ повышения энергоэффективности, мощности приборов при уменьшении их размеров и массы, что увеличивает интерес ученых к этим сплавам. Среди МТМ наибольшей магнитной энергией при меньших размерах и массе обладают магниты, полученные из редкоземельных элементов, таких как Sm и Nd (Nd2Fe14B, SmCo5 , Sm2Co17 ). Наилучшие характеристики надежности, прочности, коррозионной стойкости и высокую технологичность изготовления имеют сплавы на основе системы Fe–Cr–Co, что также делает их особенно востребованными среди МТМ. Создание магнита, в основе которого лежат две системы легирования Sm–Co и Fe–Cr–Co, может способствовать получению материала с уникальными свойствами, сочетающего в себе достоинства каждой из указанных систем. В работе исследован порошковый гистерезисный сплав 22Х15К4МС, легированный добавкой редкоземельного магнита марки КС25ДЦ в количестве от 1,5 до 9,0 %. Изучены микроструктура, кинетика превращений, фазовый состав и магнитные свойства разработанных сплавов. Установлено, что магнитные характеристики сплавов зависят от концентрации добавки редкоземельного магнита и режима термической обработки. Показано, что введение сплава КС25ДЦ в количестве 3 % позволяет достичь максимальных магнитных свойств легированного материала: Hc = 55,6 кА/м, Br = 1,33 Тл, (BH)max = 41 кДж/м3. Сочетание разработанного состава сплава и режима термической обработки позволяет повысить коэффициент прямоугольности петли магнитного гистерезиса (Kп ) – одной из важнейших характеристик прецизионных гистерезисных электрических двигателей.</p></abstract><trans-abstract xml:lang="en"><p>The development of new hard magnetic materials (HMM) is crucial for meeting the ever-increasing demands of industry. Today, the advancement of energy, electrical engineering, and instrumentation sectors requires manufacturers of HMM products to enhance the energy efficiency and power of devices while reducing their size and weight, which increases scientists’ interest in these alloys. Among HMM, magnets derived from rare-earth elements such as Sm and Nd (Nd2Fe14B, SmCo5 , Sm2Co17) possess the highest magnetic energy at smaller sizes and weights. Alloys based on the Fe–Cr–Co system offer the best reliability, strength, corrosion resistance, and manufacturability, making them particularly in demand among HMM. Creating a magnet based on two alloying systems, Sm–Co and Fe–Cr–Co, may yield a material with unique properties that combine the advantages of both systems. This study investigates the powder hysteresis alloy 22Kh15K4MS (22 % Cr–15 % Ni–4 % Mo–Co–Si) doped with the rare-earth magnet KS25DTs in amounts ranging from 1.5 to 9.0 %. The microstructure, transformation kinetics, phase composition, and magnetic properties of the developed alloys were examined. It was found that the magnetic characteristics of the alloys depend on the concentration of the rare-earth magnet additive and the thermal treatment regime. It was demonstrated that the introduction of 3 % KS25DTs achieves the maximum magnetic properties of the alloy: Hc = 55.6 kA/m, Br = 1.33 Tl, (BH)max = 41 kJ/m3. The combination of the developed alloy composition and the thermal treatment regime allows for an increase in the rectangularity coefficient of the magnetic hysteresis loop (Kl) – one of the most important characteristics of precision hysteresis electric motors.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитотвердый материал (МТМ)</kwd><kwd>порошковый сплав</kwd><kwd>магнитные свойства</kwd><kwd>коэффициент прямоугольности петли магнитного гистерезиса</kwd><kwd>Fe–Cr–Co–Mo</kwd><kwd>Sm–Co</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hard magnetic material (HMM)</kwd><kwd>powder alloy</kwd><kwd>magnetic properties</kwd><kwd>rectangularity coefficient of the magnetic hysteresis loop</kwd><kwd>Fe–Cr–Co–Mo</kwd><kwd>Sm–Co</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">Nakamura E., Sato K. Managing the scarcity of chemical elements. 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