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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">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2022-88-9-28-34</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-1746</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>ИССЛЕДОВАНИЕ СТРУКТУРЫ И СВОЙСТВ. ФИЗИЧЕСКИЕ МЕТОДЫ ИССЛЕДОВАНИЯ И КОНТРОЛЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TESTING OF STRUCTURE AND PARAMETERS. PHYSICAL METHODS OF TESTING AND QUALITY CONTROL</subject></subj-group></article-categories><title-group><article-title>Исследование теплофизических свойств жаропрочного интерметаллидного титанового γ-сплава, полученного методами фасонного литья и аддитивных технологий</article-title><trans-title-group xml:lang="en"><trans-title>Study of the thermophysical properties of heat-resistant intermetallic titanium γ-alloy obtained using methods of shaped casting and additive technologies</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>Шорстов</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Shorstov</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Юрьевич Шорстов</p><p>105005, Москва, ул. Радио, д. 17</p></bio><bio xml:lang="en"><p>Sergey Yu. Shorstov</p><p>17, ul. Radio, Moscow, 105005</p></bio><email xlink:type="simple">Sshorstov7@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>Мараховский</surname><given-names>П. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Marakhovsky</surname><given-names>P. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петр Сергеевич Мараховский</p><p>105005, Москва, ул. Радио, д. 17</p></bio><bio xml:lang="en"><p>Petr S. Marakhovsky</p><p>17, ul. Radio, Moscow, 105005</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>Пахомкин</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Pakhomkin</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Станислав Игоревич Пахомкин</p><p>105005, Москва, ул. Радио, д. 17</p></bio><bio xml:lang="en"><p>Stanislav I. Pakhomkin</p><p>17, ul. Radio, Moscow, 105005</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>Размахов</surname><given-names>М. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Razmakhov</surname><given-names>M. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максим Геннадьевич Размахов</p><p>105005, Москва, ул. Радио, д. 17</p></bio><bio xml:lang="en"><p>Maxim G. Razmakhov</p><p>17, ul. Radio, Moscow, 105005</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>НИЦ «Курчатовский институт» — ВИАМ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>NRC «Kurchatov Institute» — VIAM</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>21</day><month>09</month><year>2022</year></pub-date><volume>88</volume><issue>9</issue><fpage>28</fpage><lpage>34</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шорстов С.Ю., Мараховский П.С., Пахомкин С.И., Размахов М.Г., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Шорстов С.Ю., Мараховский П.С., Пахомкин С.И., Размахов М.Г.</copyright-holder><copyright-holder xml:lang="en">Shorstov S.Y., Marakhovsky P.S., Pakhomkin S.I., Razmakhov M.G.</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://www.zldm.ru/jour/article/view/1746">https://www.zldm.ru/jour/article/view/1746</self-uri><abstract><p>На сегодняшний день для ряда материалов реализован переход от фасонного литья к методам селективного лазерного спекания и селективного электронно-лучевого спекания (СЭЛС). При проектировании и моделировании процессов тепломассопереноса при спекании порошков методами аддитивных технологий и контроле стабильности эксплуатационных свойств конечных изделий определяющую роль играют теплофизические свойства материалов. В работе представлены результаты исследования теплофизических свойств образцов жаропрочного интерметаллидного титанового γ-сплава, полученных методами фасонного литья и СЭЛС в диапазоне 200 – 900 °C. Приведены характеристические ДСК-кривые образов, экспериментальные температурные зависимости теплоемкости и теплопроводности. Сравнительный анализ измерений плотности образцов проводили до и после теплового воздействия. Установлено, что образцы имеют схожий характер температурных зависимостей удельной теплоемкости и теплопроводности. В образцах, полученных фасонным литьем, с помощью измерений термического коэффициента линейного расширения выявлено наличие термических напряжений. Однако дополнительное тепловое воздействие позволяет нивелировать напряженное состояние. Полученные результаты могут быть использованы при совершенствовании методики моделирования процессов тепломассопереноса при спекании металлопорошковых композиций.</p></abstract><trans-abstract xml:lang="en"><p>Nowadays, the transition from shaped casting to the methods of selective laser sintering and selective electron beam sintering (SELS) has been implemented for a number of materials. The thermophysical properties of materials play a decisive role when designing and modeling heat and mass transfer processes during powder sintering by additive technologies and monitoring the stability of the operational properties of final products. We present the results of studying the thermophysical properties of the samples of heat-resistant intermetallic titanium γ-alloy obtained by shaped casting and SELS in the range of 200 – 900°C. The characteristic DSC curves of the images and experimental temperature dependences of the heat capacity and thermal conductivity are presented. Comparative analysis of sample density measurements was carried out before and after thermal exposure. Analysis of the results obtained revealed a similar nature of the temperature dependences of the specific heat capacity and thermal conductivity of the samples produced by the methods of shaped casting and SELS. The presence of thermal stresses was observed when measuring the thermal expansion coefficient in the samples obtained by shaped casting. However, leveling of the stress state by additional thermal exposure led to identical values of the thermal expansion coefficient for the samples obtained by both methods. The results obtained can be used to improve the methodology for modeling heat and mass transfer processes during sintering of metal-powder compositions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>титановые жаропрочные сплавы</kwd><kwd>интерметаллидные сплавы</kwd><kwd>аддитивные технологии</kwd><kwd>дилатометрия</kwd><kwd>дифференциальный сканирующий анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>titanium heat-resistant alloys</kwd><kwd>intermetallic alloys</kwd><kwd>additive technologies</kwd><kwd>dilatometry</kwd><kwd>differential scanning analysis</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">Каблов Е. Н., Лукин В. И. Интерметаллиды на основе титана и никеля для изделий новой техники / Сварка и родственные технологии. 2008. № 11. С. 76 – 82.</mixed-citation><mixed-citation xml:lang="en">Kablov E. N., Lukin V. I. 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