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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">10.17073/0368-0797-2020-8-623-630</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1954</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>По итогам Международной научной конференции «ФИЗИКО-ХИМИЧЕСКИЕ ОСНОВЫ МЕТАЛЛУРГИЧЕСКИХ ПРОЦЕССОВ» им. академика А.М. САМАРИНА, Москва, 25 – 28 ноября 2019 г.</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Futher to the International Scientific Conference “PHYSICO-CHEMICAL BASES OF METALLURGICAL PROCESSES” named after Academician A.M. SAMARIN, Moscow, November 25 – 28, 2019</subject></subj-group></article-categories><title-group><article-title>Исследование динамики изменения структуры сплава ВТ6 от слитка к сплавленному материалу</article-title><trans-title-group xml:lang="en"><trans-title>Change dynamics of alloy VT6 structure from ingot to alloyed material</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>Логачев</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Logachev</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., ведущий инженер лаборатории гибридных аддитивных технологий</p><p>119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Leading Engineer of the Laboratory of Hybrid Additive Technologies</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Железный</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zheleznyi</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер-исследователь лаборатории диагностики материалов</p><p>119049, Москва, Ленинский пр., 4119991, Москва, Ленинский пр., 49 </p></bio><bio xml:lang="en"><p>Research Engineer of the Laboratory of Materials Diagnostics</p><p>Moscow</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>Комолова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Komolova</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры металлургии стали, новых производственных технологий и защиты металлов, старший научный сотрудник лаборатории диагностики материалов</p><p>119049, Москва, Ленинский пр., 4119991, Москва, Ленинский пр., 49</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair of Metallurgy of Steel, New Production Technologies and Metal Protection, Senior Researcher of the Laboratory of Materials Diagnostics</p><p>Moscow</p></bio><email xlink:type="simple">o.a.komolova@gmail.com</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>Григорович</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigorovich</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик РАН, д.т.н., профессор кафедры металлургии стали, новых производственных технологий и защиты металлов, заведующий лабораторией диагностики материалов</p><p>119049, Москва, Ленинский пр., 4119991, Москва, Ленинский пр., 49</p></bio><bio xml:lang="en"><p>Academician, Dr. Sci. (Eng.), Professor of the Chair of Metallurgy of Steel, New Production Technologies and Metal Protection, Head of the Laboratory of Materials Diagnostics</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></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” (MISIS)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСиС»; Институт металлургии и материаловедения имени А.А. Байкова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology “MISIS” (MISIS); Baikov Institute of Metallurgy and Materials Science, RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>08</day><month>10</month><year>2020</year></pub-date><volume>63</volume><issue>8</issue><fpage>623</fpage><lpage>630</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Логачев И.А., Железный М.В., Комолова О.А., Григорович К.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Логачев И.А., Железный М.В., Комолова О.А., Григорович К.В.</copyright-holder><copyright-holder xml:lang="en">Logachev I.A., Zheleznyi M.V., Komolova O.A., Grigorovich K.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://fermet.misis.ru/jour/article/view/1954">https://fermet.misis.ru/jour/article/view/1954</self-uri><abstract><p>Современное развитие технологий и промышленности неразрывно связано с задачами улучшения качества и эксплуатационных характеристик оборудования. Аддитивное производство позволяет изготавливать оптимизированные конструкции или узлы оборудования при сохранении всех эксплуатационных характеристик. Использование аддитивных технологий при производстве деталей и узлов для авиакосмической техники требует тщательного изучения изменений эксплуатационных свойств материалов на каждом этапе производства, проведения сравнительной оценки результатов с параметрами изделий, полученных традиционными технологиями, а также прогнозирования характеристик конечного изделия. В работе проведено исследование изменения химического и фазового состава, микроструктуры и микротвердости образцов сплава ВТ6 на различных этапах производства: исходная заготовка после выплавки; порошок, полученный плазменным центробежным распылением заготовки и слиток после селективного электронно-лучевого сплавления порошка. Анализ элементного состава образцов проводили на рентгенофлуоресцентном спектрометре с волновой дисперсией Rigaku Primus ZSXII, рентгеноструктурные исследования – на дифрактометре Rigaku Mini Flex 600 (CuKα -излучение, λ = 1,54178 Å), оснащенном линейным (1-D) полупроводниковым детектором D/teXUltra. Изучение микроструктуры порошковых (гранулированных) образцов проводили с использованием методов оптической и сканирующей электронной микроскопии, измерение микротвердости – с помощью микротвердомера LECO M-400-H по методу Виккерса. Показано, что микроструктура образцов после центробежного распыления представляла собой смесь двух твердых растворов на основе гексагональной модификации титана (ГПУ) с несколько отличающимися параметрами кристаллической решетки из-за различия в концентрациях легирующих элементов. Элементный состав сплава после селективного лазерного сплавления практически не отличался от сплава в исходном состоянии.</p></abstract><trans-abstract xml:lang="en"><p>The modern development of technology and industry depends to a large extent on improving the quality and performance of equipment. Additive technologies allow production of optimized designs and equipment while maintaining all operational characteristics. The use of additive technologies in the production of parts for aerospace engineering requires a thorough study of the operational properties of materials at each stage of production, a comparative assessment of the test results with the parameters of products obtained by traditional technologies, as well as predicting the characteristics of the final product. In this work, a study of changes in the chemical and phase compositions, microstructure and microhardness of the VT6 titanium alloy samples was carried out at various stages of production: initial cast billet; a powder obtained by plasma centrifugal spraying of an ingot and a product obtained by selective laser melting (SLM). Analysis of the samples’ chemical composition was carried out on an X-ray fluorescence spectrometer with wave dispersion Rigaku Primus ZSX II, X-ray structural studies – on a Rigaku MiniFlex 600 diffractometer (CuKα -radiation, λ = 1.54178 Å), equipped with a linear (1-D) D/teX semiconductor detector. Study of the microstructure of powder (granular) samples was carried out using the methods of optical and scanning electron microscopy, the measurement of microhardness – on a microhardness tester LECO M-400-H by the Vickers method. It was shown that microstructure of the samples after centrifugal sputtering was a combination of two solid solutions based on the hexagonal titanium modification (HCP) with slightly different crystal lattice parameters due to difference in concentrations of the alloying elements. Chemical composition of the alloy after selective laser melting practically did not differ from the alloy in the initial state.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>аддитивные технологии</kwd><kwd>ВТ6</kwd><kwd>селективное лазерное сплавление</kwd><kwd>порошок</kwd><kwd>микроструктура</kwd></kwd-group><kwd-group xml:lang="en"><kwd>additive technologies</kwd><kwd>VT6</kwd><kwd>selective laser melting</kwd><kwd>powder</kwd><kwd>microstructure</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">Добровольский М.В. Жидкостные ракетные двигатели. – М.: Изд-во МГТУ им. Н.Э. 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