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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">creexp</journal-id><journal-title-group><journal-title xml:lang="ru">Crede Experto: транспорт, общество, образование, язык</journal-title><trans-title-group xml:lang="en"><trans-title>Crede Experto: transport, society, education, language</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2312-1327</issn><publisher><publisher-name>Иркутский филиал ФГБОУ ВО «МГТУ ГА»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.51955/2312-1327_2024_2_51</article-id><article-id custom-type="elpub" pub-id-type="custom">creexp-36</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>ЛЕТАТЕЛЬНЫЕ АППАРАТЫ, АВИАЦИОННЫЕ ДВИГАТЕЛИ И МЕТОДЫ ИХ ЭКСПЛУАТАЦИИ</subject></subj-group></article-categories><title-group><article-title>Исследование влияния действующих нагрузок на микроструктурные изменения в сплаве Inconel 738LC</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of the influence of acting loads on microstructural changes in the alloy Inconel 738LC</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-4401-4853</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ратенко</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ratenko</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Олег Александрович Ратенко, кандидат технических наук</p><p>Кронштадтский б-р, д. 20 Москва, 125493</p></bio><bio xml:lang="en"><p>Oleg A. Ratenko, Candidate of Sciences in Technology</p><p>20, Kronshtadtsky blvd Moscow, 125493</p></bio><email xlink:type="simple">ratenko.oleg@yandex.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/0009-0006-3964-7225</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самойленко</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Samojlenko</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елизавета Васильевна Самойленко</p><p>Кронштадтский б-р, д. 20 Москва, 125493</p></bio><bio xml:lang="en"><p>Elizaveta V. Samojlenko</p><p>20, Kronshtadtsky blvd Moscow, 125493</p></bio><email xlink:type="simple">e.samoilenko@mstuca.aero</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-8446-9591</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петров</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Владимирович Петров, доктор технических наук, профессор</p><p>Кронштадтский б-р, д. 20 Москва, 125493</p></bio><bio xml:lang="en"><p>Yurij V. Petrov, Doctor of Technical Sciences, Professor</p><p>20, Kronshtadtsky blvd Moscow, 125493</p></bio><email xlink:type="simple">yu.petrov@mstuca.aero</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный технический университет гражданской авиации</institution></aff><aff xml:lang="en"><institution>Moscow State Technical University of Civil Aviation</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>28</day><month>11</month><year>2025</year></pub-date><volume>0</volume><issue>2</issue><fpage>51</fpage><lpage>60</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ратенко О.А., Самойленко Е.М., Петров Ю.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Ратенко О.А., Самойленко Е.М., Петров Ю.В.</copyright-holder><copyright-holder xml:lang="en">Ratenko O.A., Samojlenko E.V., Petrov Y.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://ce.if-mstuca.ru/jour/article/view/36">https://ce.if-mstuca.ru/jour/article/view/36</self-uri><abstract><p>В современных экономических условиях одной из важных задач является перевод как можно большего количества элементов конструкции авиационных двигателей на эксплуатацию по состоянию при одновременном соблюдении баланса экономического эффекта и уровня безопасности полетов. Подобные меры в значительной степени позволят эксплуатантам воздушных судов снизить эксплуатационные расходы. Одним из кандидатов на переход на эксплуатацию по состоянию являются лопатки турбин газотурбинных двигателей (ГТД), изготовляемые из жаропрочных никелевых сплавов (ЖНС). Микроструктура ЖНС представляет собой γ-матрицу с включенными в нее дисперсными частицами 𝛾′- фазы, которые и являются элементами, обеспечивающими высокие прочностные свойства никелевых сплавов. Происходящие в ходе эксплуатации ГТД микроструктурные изменения в ЖНС лопаток турбин, связанные с увеличением размеров частицам 𝛾′- фазы, а также изменением их формы и объемной доли, приводят к деградации механических свойств изделий. Учет этих изменений может явиться тем инструментом, который позволит проводить расчеты, направленные на оценку технического состояния лопаток турбин ГТД в процессе их эксплуатации.</p></abstract><trans-abstract xml:lang="en"><p>In modern economic conditions, one of the important tasks is to transfer as many structural elements of aircraft engines as possible to condition-based operation while maintaining a balance between the economic effect and the flight safety level. Such measures will significantly allow aircraft operators to reduce operating costs. One of the candidates for the transition to condition-based operation are turbine blades of gas turbine engines, made from heat-resistant nickel alloys. The microstructure of the heat-resistant nickel alloys is a γ-matrix with dispersed particles of the γ'-phase included into it, which are the elements that provide the high strength properties of nickel alloys. The microstructural changes that occur during the operation of gas turbine engines in turbine blades associated with an increase in the size and shape of the γ'-phase particles, as well as their volume fraction, lead to degradation of the mechanical properties of products. Taking into account these changes can be a tool that will allow one to carry out calculations aimed at assessing the technical condition of the blades of gas turbine engines during their operation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>газотурбинный двигатель</kwd><kwd>лопатка турбины</kwd><kwd>жаропрочный никелевый сплав</kwd><kwd>𝛾′- фаза</kwd><kwd>микроструктура сплава</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gas turbine engine</kwd><kwd>turbine blade</kwd><kwd>heat-resistant nickel alloy</kwd><kwd>γ'-phase</kwd><kwd>alloy 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">Анализ состояния безопасности полетов в гражданской авиации Российской Федерации в 2018 году // [Электронный ресурс]. 2019. – URL: https://rostransnadzor.gov.ru/storage/img/avia/analiz_po_bezopasnosti_poletov_2018.pdf?ysclid=lovu7yj94e577965939 (дата обращения: 12.11.2023).</mixed-citation><mixed-citation xml:lang="en">Analysis of the state of flight safety in civil aviation of the Russian Federation in 2018. 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