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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">vestift</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-технических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physical-technical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8358</issn><issn pub-type="epub">2524-244X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8358-2026-71-2-95-104</article-id><article-id custom-type="elpub" pub-id-type="custom">vestift-941</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>МАТЕРИАЛОВЕДЕНИЕ, МЕТАЛЛУРГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATERIALS SCIENCES AND ENGINEERING, METALLURGY</subject></subj-group></article-categories><title-group><article-title>Контроль температуры ванны расплава при электронно-лучевом аддитивном формообразовании методом спектральной термографии</article-title><trans-title-group xml:lang="en"><trans-title>Temperature monitoring of the molten bath in electron beam additive manufacturing using spectral thermography</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0919-7762</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хохлов</surname><given-names>Д. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Khokhlov</surname><given-names>D. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хохлов Демид Денисович – кандидат технических наук, заведующий лабораторией</p><p>ул. Бутлерова, 15, 117342, Москва</p></bio><bio xml:lang="en"><p>Demid D. Khokhlov – Cand. Sci (Engineering), Laboratory Chief </p><p>15, Butlerov St., 117342, Moscow</p></bio><email xlink:type="simple">khokhlov.dd@ntcup.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/0000-0002-7574-3437</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Быков</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bykov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Быков Алексей Александрович – кандидат технических наук, научный сотрудник</p><p>ул. Бутлерова, 15, 117342, Москва</p></bio><bio xml:lang="en"><p>Alexey A. Bykov – Cand. Sci. (Engineering), Researcher</p><p>15, Butlerov St., 117342, Moscow</p></bio><email xlink:type="simple">bykov@ntcup.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/0009-0004-3484-6466</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поляков</surname><given-names>М. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Poliakov</surname><given-names>M. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Поляков Михаил Петрович – младший научный сотрудник </p><p>ул. Бутлерова, 15, 117342, Москва</p></bio><bio xml:lang="en"><p>Mikhail P. Poliakov – Junior Researcher </p><p>15, Butlerov St., 117342, Moscow</p></bio><email xlink:type="simple">polyakov.mp@ntcup.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/0009-0008-4723-0803</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шишкин</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shishkin</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шишкин Дмитрий Владимирович – техник </p><p>ул. Бутлерова, 15, 117342, Москва</p></bio><bio xml:lang="en"><p>Dmitriy V. Shishkin – Technician </p><p>15, Butlerov St., 117342, Moscow</p></bio><email xlink:type="simple">shishkindmv@mpei.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/0009-0002-6507-3000</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белых</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Belykh</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Белых Андрей Юрьевич – младший научный сотрудник </p><p>ул. Бутлерова, 15, 117342, Москва</p></bio><bio xml:lang="en"><p>Andrey Yu. Belykh – Junior Researcher </p><p>15, Butlerov St., 117342, Moscow</p></bio><email xlink:type="simple">belykh.ay@ntcup.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/0009-0009-9211-7081</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корнеева</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Korneeva</surname><given-names>А. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Корнеева Анастасия Алексеевна – ведущий инженер-конструктор </p><p>ул. Бутлерова, 15, 117342, Москва</p></bio><bio xml:lang="en"><p>Anastasiia A. Korneeva – Lead Design Engineer </p><p>15, Butlerov St., 117342, Moscow</p></bio><email xlink:type="simple">korneeva.aa@ntcup.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/0000-0003-1043-7014</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Золотухина</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zolotukhina</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Золотухина Анастасия Александровна – младший научный сотрудник </p><p>ул. Бутлерова, 15, 117342, Москва</p></bio><bio xml:lang="en"><p>Anastasia A. Zolotukhina – Junior Researcher </p><p>15, Butlerov St., 117342, Moscow</p></bio><email xlink:type="simple">zolotukhina.aa@ntcup.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-технологический центр уникального приборостроения Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Scientific and Technological Centre of Unique Instrumentation of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>09</day><month>07</month><year>2026</year></pub-date><volume>71</volume><issue>2</issue><fpage>95</fpage><lpage>104</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Хохлов Д.Д., Быков А.А., Поляков М.П., Шишкин Д.В., Белых А.Ю., Корнеева А.А., Золотухина А.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Хохлов Д.Д., Быков А.А., Поляков М.П., Шишкин Д.В., Белых А.Ю., Корнеева А.А., Золотухина А.А.</copyright-holder><copyright-holder xml:lang="en">Khokhlov D.D., Bykov A.A., Poliakov M.P., Shishkin D.V., Belykh A.Y., Korneeva А.A., Zolotukhina A.A.</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://vestift.belnauka.by/jour/article/view/941">https://vestift.belnauka.by/jour/article/view/941</self-uri><abstract><p>Представлен метод спектральной термографии для контроля пространственного распределения температуры в ванне расплава при аддитивном формообразовании металлических изделий и экспериментальная установка для реализации данного метода. В основе метода лежит мультиспектральная съемка в четырех узкоспектральных каналах при помощи одиночного матричного приемника излучения. В ходе работы проведена экспериментальная апробация метода на установке электронно-лучевого аддитивного формообразования. Полученные в эксперименте данные подвержены характерным искажениям, связанным с частичным осаждением материала на защитном стекле мультиспектральной камеры. Предложенный алгоритм предварительной обработки скомпенсировал указанные искажения. Результаты экспериментов по электронно-лучевому аддитивному формообразованию указывают на возможность регистрации относительных изменений температуры в процессе аддитивного формообразования. При выбранной частоте регистрации кадров на пространственных распределениях температуры видны периодические изменения, сопряженные с особенностями выбранных режимов наплавки. Общий характер пространственного распределения температуры в ванне расплава в значительной мере совпадает с теоретическими данными, описанными в ранее опубликованных работах. Полученные результаты позволяют судить о возможности дальнейшего применения предложенного подхода для контроля температурных режимов при аддитивном формообразовании.</p></abstract><trans-abstract xml:lang="en"><p>This article presents a spectral thermography method for monitoring the spatial temperature distribution in the molten bath during additive manufacturing of metal parts, along with the experimental setup designed to implement this method. The approach is based on multispectral imaging across four narrow-band spectral channels using a single image sensor. The method was experimentally tested on an electron beam additive manufacturing system. The raw experimental data exhibited characteristic distortions caused by partial material deposition on the protective camera window. A dedicated preprocessing algorithm was developed to compensate for these distortions. Experimental results from electron beam additive manufacturing system demonstrate the feasibility of detecting relative temperature changes during the additive synthesis process. At the selected frame capture rate, periodic temperature fluctuations are observable in the spatial temperature maps, correlating with the specific cladding mode parameters. The overall pattern of the spatial temperature distribution in the mol - ten bath shows a high degree of consistency with theoretical predictions reported in earlier publications. These findings confirm the potential for further application of the proposed approach in temperature regime monitoring during additive manufacturing processes.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>спектральная термография</kwd><kwd>мультиспектральная камера</kwd><kwd>неразрушающий контроль</kwd><kwd>электронно-лучевое аддитивное формообразование</kwd><kwd>бесконтактный контроль температуры</kwd></kwd-group><kwd-group xml:lang="en"><kwd>spectral thermography</kwd><kwd>multispectral camera</kwd><kwd>non-destructive testing</kwd><kwd>electron-beam additive manufacturing</kwd><kwd>non-contact temperature monitoring</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">исследование выполнено при финансовой поддержке Российского научного фонда (грант  № 24-79-10239; https://rscf.ru/project/24-79-10239).</funding-statement><funding-statement xml:lang="en">the study was funded by the Russian Science Foundation (grant no. 24-79-10239 (https://rscf.ru/en/ project/24-79-10239).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Additive Manufacturing: A Comprehensive Review / L. 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