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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">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.1134/S2079562919050221</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-96</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>Перспективные конструкционные материалы</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Promising Structural Materials</subject></subj-group></article-categories><title-group><article-title>Природа аномальных частиц (гранул) в быстрозакаленных PREP порошках – II. Многоуровневое исследование prep-порошков и пм гип компактов суперсплавов на основе Ni и коррозионно-стойких сталей</article-title><trans-title-group xml:lang="en"><trans-title>The Nature of Anomalous Particles (Granules) in Rapidly Quenched PREP Powders–II. A Multiscale Study of PREP Powders and PM HIP Compacts of Ni-Based Superalloys and Stainless Steels</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>Шульга</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shulga</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 115409</p></bio><bio xml:lang="en"><p>Moscow, 115409</p></bio><email xlink:type="simple">avshulga@mephi.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет “МИФИ”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>23</day><month>04</month><year>2024</year></pub-date><volume>11</volume><issue>1</issue><fpage>32</fpage><lpage>42</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шульга А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Шульга А.В.</copyright-holder><copyright-holder xml:lang="en">Shulga A.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://npe.elpub.ru/jour/article/view/96">https://npe.elpub.ru/jour/article/view/96</self-uri><abstract><p>Формирование аномальных частиц (гранул), с существенно отличным содержанием микро-легирующих элементов внедрения углерода и бора, характеризует неоднородность состава быстрозакаленных частиц порошков жаропрочных суперсплавов на основе Ni и коррозионно-стойких сталей, изготовленных методом PREP. Детальное многоуровневое экспериментальное исследование микроструктуры PREP порошков и ПМ ГИП-компактов суперсплавов на основе Ni и коррозионностойких сталей проведено с целью выявления особенностей микроструктуры аномальных гранул в исходном и консолидированном состоянии. Использовались прямые ядерные методы активационной авторадиографии по углероду, трековая авторадиография по бору, металлография, SEM, EDX и OIM. Выявлено существенное влияние углерода и бора на дендритную сегрегацию карбидо- и боридо-образующих легирующих элементов в аномальных гранулах. Установлены особенности поведения углерода и бора, определяющие формирование микроструктуры аномальных гранул и их сохранение в ПМ ГИП компактах.</p></abstract><trans-abstract xml:lang="en"><p>The formation of anomalous particles (granules) with a significantly different content of microalloying interstitial elements of carbon and boron characterizes the heterogeneity of the composition of rapidly quenched particles of high temperature Ni-based superalloys and stainless steels powders manufactured by the plasma rotating electrode process (PREP) technique. A detailed multiscale experimental study of the microstructure of PREP powders and PM HIP compacts of Ni-based superalloys and stainless steels is carried out in order to reveal the features of the microstructure of anomalous granules in the as-received state and consolidated state. Direct nuclear methods of activation autoradiography on carbon, track autoradiography on boron, metallography, SEM, EDX, and OIM are used. A significant effect of carbon and boron on the dendritic segregation of carbide-forming and boride-forming alloying elements in anomalous granules is revealed. The features of the behavior of carbon and boron, which determine the formation of the microstructure of anomalous granules and their retention in PM HIP compacts, are established.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>суперсплавы на основе Ni</kwd><kwd>коррозионно-стойкие стали</kwd><kwd>быстрозакаленные порошки</kwd><kwd>PREP-</kwd><kwd>ПМ ГИП методы</kwd><kwd>авторадиография</kwd><kwd>углерод</kwd><kwd>бор</kwd><kwd>микроструктура</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Ni-based superalloys</kwd><kwd>stainless steels</kwd><kwd>rapidly quenched powders</kwd><kwd>PREP technique</kwd><kwd>PM HIP methods</kwd><kwd>autoradiography</kwd><kwd>carbon</kwd><kwd>boron</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">Iljin A.A., Stroganov G.B., Fatkullin O.Kh., Shulga A.V., Martinov V.N. 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