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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">techusgu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Юго-Западного государственного университета. Серия: Техника и технологии</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Southwest State University. Series: Engineering and Technology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-1528</issn><publisher><publisher-name>Юго-Западный государственный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21869/2223-1528-2023-13-2-20-42</article-id><article-id custom-type="elpub" pub-id-type="custom">techusgu-137</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>МЕТАЛЛУРГИЯ И МАТЕРИАЛОВЕДЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGY AND MATERIALS SCIENCE</subject></subj-group></article-categories><title-group><article-title>Влияние состава порошковой шихты на структуру и свойства твердого сплава Т15К6</article-title><trans-title-group xml:lang="en"><trans-title>Influence of Powder Charge Composition on the Structure and Properties of T15K6 Hard Alloy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алимжанова</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Alimzhanova</surname><given-names>А. М.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алимжанова Алия Маргулановна, кандидат технических наук, старший научный работник</p><p>ул. Жандосова, д. 67, г. Алматы 050036</p></bio><bio xml:lang="en"><p>Aliya M. Alimzhanova, Cand. of Sci. (Enginee- ring), Senior Researcher</p><p>67 Zhandosov Str., Almaty 050036</p></bio><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>Еремеева Жанна Владимировна, доктор технических наук, профессор, профессор кафедры порошковой металлургии и функциональных покрытий</p><p>Ленинский пр-т, д. 4, г. Москва 119049</p></bio><bio xml:lang="en"><p>Zhanna V. Eremeeva, Dr. of Sci. (Engineering), Professor, Professor of the Department of Powder Metallurgy and Functional Coatings</p><p>4 Leninsky Ave., Moscow 119049</p></bio><email xlink:type="simple">eremeeva-shanna@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ножкина</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nozhkina</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ножкина Алла Викторовна, доктор технических наук, профессор, профессор кафедры литейных технологий и художественной обработки материалов</p><p>Ленинский пр-т, д. 4, г. Москва 119049</p></bio><bio xml:lang="en"><p>Alla V. Nozhkina, Dr. of Sci. (Engineering), Professor, Professor of the Department of Foundry Technology and Artistic Processing of Materials</p><p>4 Leninsky Ave., Moscow 119049</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Левина</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Levina</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Левина Вера Васильевна, доктор технических наук, профессор, профессор кафедры функциональных наносистем и высокотемпературных материалов</p><p>Ленинский пр-т, д. 4, г. Москва 119049</p></bio><bio xml:lang="en"><p>Vera V. Levina, Dr. of Sci. (Engineering), Professor, Professor of Functional Nanosystems and High-Temperature Materials Department</p><p>4 Leninsky Ave., Moscow 119049</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ниткин</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Nitkin</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ниткин Николай Михайлович, кандидат технических наук, доцент, доцент кафедры материаловедения</p><p>ул. Большая Семёновская, д. 38, г. Москва 107023</p></bio><bio xml:lang="en"><p>Nikolay M. Nitkin, Cand. of Sci. (Engineering), Associate Professor, Associate Professor of the Department of Materials Science</p><p>38 Bolshaya Semyonovskaya Str., Moscow 107023</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орлов</surname><given-names>В. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlov</surname><given-names>V. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Орлов Вадим Леонидович, кандидат технических наук, старший преподаватель кафедры иностранных языков</p><p>ул. Большая Семёновская, д. 38, г. Москва 107023</p></bio><bio xml:lang="en"><p>Vadim L. Orlov, Cand. of Sci. (Engineering), Senior Lecturer of the Department of Foreign Languages</p><p>38 Bolshaya Semyonovskaya Str., Moscow 107023</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>РГП Национальный центр по комплексной переработке минерального сырья Республики Казахстан</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>RSE National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan</institution><country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский университет «МИСИС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research University MISIS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Московский политехнический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Polytechnic 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>23</day><month>07</month><year>2023</year></pub-date><volume>13</volume><issue>2</issue><fpage>20</fpage><lpage>42</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алимжанова А.М., Еремеева Ж.В., Ножкина А.В., Левина В.В., Ниткин Н.М., Орлов В.Л., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Алимжанова А.М., Еремеева Ж.В., Ножкина А.В., Левина В.В., Ниткин Н.М., Орлов В.Л.</copyright-holder><copyright-holder xml:lang="en">Alimzhanova А.М., Eremeeva Z.V., Nozhkina A.V., Levina V.V., Nitkin N.M., Orlov V.L.</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://techusgu.elpub.ru/jour/article/view/137">https://techusgu.elpub.ru/jour/article/view/137</self-uri><abstract><p>Цель исследования – определить влияние наноразмерных добавок на структуру и свойства твердого сплава Т15К6.Методы. Данные исследования проводились на электронном микроскопе марки S-3400N. Изучены механические и физические свойства и структура твердого сплава системы WC-TiC-Co на примере Т15К6 при введении в исходную шихту наноразмерного порошка вольфрама и наноразмерного порошка карбида вольфрама с осажденным на нем кобальтом на оптическом и электронном микроскопе. Проведен рентгеноспектральный анализ полученных образцов твердого сплава марки Т15К6 на рентгеновском дифрактометре ДРОН-4.Результаты. Исследован твердый сплав системы WC-TiC-Co при введении в исходную шихту наноразмерного порошка вольфрама, а также при введении наноразмерного карбида вольфрама с осажденным на его поверхности кобальтом. В работе было проведено изучение используемых порошков вольфрама, нановольфрама, кобальта, карбида титана, карбида вольфрама, нанопорошка карбида вольфрама, а также проводилось изучение микроструктуры полученных твердых сплавов. Показано, что коэрцитивная сила сплава Т15К6 зависит от размера участков кобальтовой фазы в сплаве, измерение ее величины позволяет судить о размере карбидных зерен. Для повышения прочностных свойств твердых сплавов системы WC-TiC-Co рекомендуется введение наноразмерных добавок WC либо нанопорошка WC с осажденным кобальтом.Заключение. Для повышения прочностных свойств твердых сплавов системы WC-TiC-Co рекомендуется введение наноразмерных добавок WC либо нанопорошка WC с осажденным кобальтом. Введение в состав порошковой шихты твердого сплава Т15К6 данных добавок ведет к увеличению предела прочности на изгиб на 15%. Введение наноразмерных добавок WC либо нанопорошка WC с осажденным кобальтом позволяет получать мелкозернистую структуру с размером зерен не более 4–6 мкм. </p></abstract><trans-abstract xml:lang="en"><p>The purpose of the study is to determine the effect of nanosized additives on the structure and properties of the T15K6 hard alloy.Methods. These studies were carried out using an S-3400N electron microscope. The mechanical and physical properties of the structure of a hard alloy of the WC-TiC-Co system were studied using the example of T15K6 when nanosized tungsten powder and nanosized tungsten carbide powder with cobalt deposited on it were introduced into the initial charge using an optical and electron microscope; An X-ray spectrum analysis of the obtained samples of the T15K6 hard alloy was carried out on a DRON-4 X-ray diffractometer.Results. A hard alloy of the WC-TiC-Co system was studied with the introduction of nanosized tungsten powder into the initial charge, as well as with the introduction of nanosized tungsten carbide with cobalt deposited on its surface.In the work, the used powders of tungsten, nano-tungsten, cobalt, titanium carbide, tungsten carbide, nano-powder of tungsten carbide were studied, and the microstructure of the obtained hard alloys was also studied. It is shown that the coercive force of the T15K6 alloy depends on the size of the cobalt phase regions in the alloy; measuring its value makes it possible to judge the size of carbide grains. To improve the strength properties of hard alloys of the WC-TiCCo system, it is recommended to introduce nanosized WC additives or WC nanopowder with deposited cobalt.Conclusion. To improve the strength properties of hard alloys of the WC-TiC-Co system, it is recommended to introduce nanosized WC additives or WC nanopowder with deposited cobalt. The introduction of these additives into the composition of the powder charge of the T15K6 hard alloy leads to an increase in the ultimate bending strength by 15%. The introduction of nanosized WC additives or WC nanopowder with deposited cobalt makes it possible to obtain a fine-grained structure with a grain size of no more than 4–6 μm.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>твердый сплав</kwd><kwd>наноразмерный порошок</kwd><kwd>вольфрам</kwd><kwd>карбид вольфрама</kwd><kwd>прессование</kwd><kwd>спекание</kwd><kwd>твердость</kwd><kwd>коэрцитивная сила</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hard alloy</kwd><kwd>nanopowder</kwd><kwd>tungsten</kwd><kwd>tungsten carbide</kwd><kwd>pressing</kwd><kwd>sintering</kwd><kwd>hardness</kwd><kwd>coercive force</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа проведена в рамках программно-целевого финансирования НТП «Создание новых композиционных материалов с высокими эксплуатационными свойствами на основе редких и редкоземель- ных элементов» Комитета индустриального развития Министерства индустрии и инфраструктурного развития Республики Казахстан.</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of program-targeted financing of the Scientific and Technical Proceedings Program “Creation of new composite materials with high performance properties based on rare and rare earth elements” of the Industrial Development Committee of the Ministry of Industry and Infrastructure Development of the Republic of Kazakhstan.</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">Фальковский В. 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