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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">10.17073/0368-0797-2019-5-360-365</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1620</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>МЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGICAL TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>ВЛИЯНИЕ ВОЗВРАТА СОБСТВЕННОГО ПРОИЗВОДСТВА НА СТРУКТУРУ И СВОЙСТВА ЖАРОПРОЧНОГО НИКЕЛЕВОГО СПЛАВА ЖС6У. ЧАСТЬ 1. АНАЛИЗ СТРУКТУРЫ И ФАЗОВОГО СОСТАВА СПЛАВА ЖС6У, ПОЛУЧЕННОГО С ПРИМЕНЕНИЕМ ВОЗВРАТА СОБСТВЕННОГО ПРОИЗВОДСТВА</article-title><trans-title-group xml:lang="en"><trans-title>EFFECT OF SCRAP USING IN CHARGE ON THE STRUCTURE AND PROPERTIES OF ZhS6U NICKEL-BASED SUPERALLOY. PART 1. MICROSTRUCTURE ANALYSIS AND PHASE COMPOSITION OF ZhS6U ALLOY PREPARED WITH SCRAP</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>Колтыгин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Koltygin</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н, доцент кафедры «Литейные технологии и художественная обработка материалов»</p><p>119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair “Foundry Technology and Art Processing of Materials”</p><p>Moscow</p></bio><email xlink:type="simple">misistlp@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баженов</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Bazhenov</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры «Литейные технологии и художественная обработка материалов»</p><p>119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair “Foundry Technology and Art Processing of Materials”</p><p>Moscow</p></bio><email xlink:type="simple">V.E.Bagenov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Базлов</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Bazlov</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер лаборатории «Перспективные энергоэффективные материалы»</p><p>119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Engineer of the Laboratory “Advanced Energy-Efficient Materials”</p><p>Moscow</p></bio><email xlink:type="simple">andreibazlov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Базлова</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bazlova</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н, доцент кафедры «Литейные технологии и художественная обработка материалов»</p><p>119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair “Foundry Technology and Art Processing of Materials”</p><p>Moscow</p></bio><email xlink:type="simple">tbazlova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белов</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Belov</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор, заведующий кафедрой «Литейные технологии и художественная обработка материалов»</p><p>119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Professor, Head of the Chair “Foundry Technology and Art Processing of Materials”</p><p>Moscow</p></bio><email xlink:type="simple">vdbelov@mail.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” (MISIS)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>18</day><month>06</month><year>2019</year></pub-date><volume>62</volume><issue>5</issue><fpage>360</fpage><lpage>365</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Колтыгин А.В., Баженов В.Е., Базлов А.И., Базлова Т.А., Белов В.Д., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Колтыгин А.В., Баженов В.Е., Базлов А.И., Базлова Т.А., Белов В.Д.</copyright-holder><copyright-holder xml:lang="en">Koltygin A.V., Bazhenov V.E., Bazlov A.I., Bazlova T.A., Belov V.D.</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/1620">https://fermet.misis.ru/jour/article/view/1620</self-uri><abstract><p>Для изготовления литых лопаток газотурбинного двигателя используют дорогостоящие никелевые сплавы, причем на сами лопатки расходуется лишь небольшая их часть, остальное – это элементы литниково-питающей системы. Большая часть сплава после заливки представляет собой отходы, использование которых повторно в виде металлической шихты значительно снижает себестоимость лопаток. Однако использование возврата сопряжено с некоторыми рисками, связанными с возможностью загрязнения сплава неметаллическими включениями и угаром легирующих компонентов. Поэтому исследование последствий использования возврата собственного производства в изготовлении лопаток весьма актуально. В первой части статьи рассмотрено влияние возврата собственного производства на структуру и фазовый состав сплава ЖС6У-ВИ. Изучены образцы лопаток газотурбинного двигателя, изготовленные методом литья в оболочковые керамические формы из предварительно очищенного от загрязнений и остатков огнеупорной оболочковой формы возврата собственного производства сплава ЖС6У-ВИ. Исследованы образцы, вырезанные из замковой части лопатки и элементов литниковой системы, примыкающих к лопатке. Также изучены специально отлитые в медную форму цилиндрические образцы из исходного сплава ЖС6У-ВИ без использования возврата и с 50 и 100 % возврата в шихте. Исследование структуры проводили с применением электронной и оптической микроскопии. Идентификация фаз и структурных составляющих производилась по результатам микрорентгеноспектрального анализа (МРСА) с использованием расчетов фазового состава в программе Thermo-Calc, опираясь на описанные в литературе сведения о возможных соединениях в жаропрочных никелевых сплавах. Содержание основных легирующих компонентов в полученных образцах (кроме углерода) определяли по данным МРСА. Исследования проводились на образцах в литом и отожженном в течение 4 ч при 1210 °С состояниях. Показано, что использование возврата в шихте принципиально не изменяет фазовый состав сплава ни при плавке в индукционной тигельной печи, ни при вакуумно-дуговом переплаве.</p></abstract><trans-abstract xml:lang="en"><p>Expensive nickel superalloys are used for manufacture of cast blades of gas turbine engine (GTE). However, for the blades only a small amount of alloy was used and the remainder is used for gating system. Therefore, the most proportion of alloy after casting is a scrap, the use of which as raw material for blades production significantly reduces their cost. However, the use of scrap is associated with some risks: the possibility of alloy contamination by nonmetallic inclusions and loss of alloying elements. So, the investigation of a scrap usage effect on the blades properties is very important. In the first part of article the influence of the scrap amount on the microstructure and phase composition of the ZhS6U-VI nickel-base superalloy were examined. The GTE blades samples, fully produced from the scrap of ZhS6U-VI superalloy by investment casting were investigated. The scrap before using was cleaned from contaminations and ceramic mold remains. Samples were cut from blade dowetail and gating system near dowetail. In addition, cylindrical samples that were casted into the copper mold from the virgin alloy ZhS6U-VI without the scrap and from alloys with 50 % and 100 % of scrap were researched. The alloys microstructures were investigated using scanning electron microscopy and optical microscopy. The phase’s identification was carried out using the energy-dispersive X-ray spectroscopy (EDS) and the calculations of phase composition were made by Thermo-Calc software and literature data about phases in nickel-based superalloys. Content of alloying elements (except carbon) was measured by EDS analysis. The studies were carried out on the samples as-casted and annealed for 4 hours at 1210 °C. It is shown that the use of scrap does not fundamentally change the alloy phase composition at both during vacuum induction melting and vacuum arc melting.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>жаропрочные никелевые сплавы</kwd><kwd>лопатки</kwd><kwd>возврат собственного производства</kwd><kwd>ЖС6У</kwd><kwd>плавка</kwd><kwd>шихта</kwd><kwd>литье по выплавляемым моделям</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nickel-based superalloys</kwd><kwd>blades</kwd><kwd>scrap</kwd><kwd>ZhS6U</kwd><kwd>melting</kwd><kwd>charge</kwd><kwd>investment casting</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья подготовлена по материалам работы, выполняемой в рамках постановления Правительства РФ № 218 от 09.04.2010 г. Госконтракт № 02.G25.31.0163.</funding-statement><funding-statement xml:lang="en">The article was prepared on the basis of the work carried out in the framework of Russian Government Decree No. 218 of April 9, 2010. 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