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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">vsgiu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Сибирского государственного индустриального университета</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of the Siberian State Industrial University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2304 - 4497</issn><issn pub-type="epub">2307-1710</issn><publisher><publisher-name>Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.57070/2304-4497-2023-4(46)-21-29</article-id><article-id custom-type="elpub" pub-id-type="custom">vsgiu-100</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>Раздел 1. Физика конденсированного состояния</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Section 1. Condensed Matter Physics</subject></subj-group></article-categories><title-group><article-title>ВЛИЯНИЕ ДЕФЕКТОВ НА СТРУКТУРНО-ФАЗОВОЕ СОСТОЯНИЕ СВАРНЫХ СОЕДИНЕНИЙ И ПАРАМЕТРЫ СИГНАЛОВ АКУСТИЧЕСКОЙ ЭМИССИИ В КОНСТРУКЦИОННЫХ СТАЛЯХ</article-title><trans-title-group xml:lang="en"><trans-title>INFLUENCE OF DEFECTS ON THE STRUCTURAL-PHASE STATE                                 OF WELDED JOINTS AND PARAMETERS OF ACOUSTIC EMISSION SIGNALS IN STRUCTURAL STEELS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-0741-0291</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ожиганов</surname><given-names>Евгений Анатольевич</given-names></name><name name-style="western" xml:lang="en"><surname>Ozhiganov</surname><given-names>Evgenii</given-names></name></name-alternatives><bio xml:lang="ru"><p>главный специалист по неразрушающему контролю</p></bio><bio xml:lang="en"><p>Chief Specialist For Non-Destructive Testing</p></bio><email xlink:type="simple">zhigan84@mail.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/0000-0003-4809-8660</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коновалов</surname><given-names>Сергей Валерьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Konovalov</surname><given-names>Sergey</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор, проректор по научной и инновационной деятельности</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Professor, Vice-Rector for Scientific and Innovative Activities</p></bio><email xlink:type="simple">konovalov@sibsiu.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1631-9644</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Панченко</surname><given-names>Ирина Алексеевна</given-names></name><name name-style="western" xml:lang="en"><surname>Panchenko</surname><given-names>Irina</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., заведующий научной лабораторией электронной микроскопии и обработки изображений</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Head of the Laboratory of Electron Microscopy and Image Processing</p></bio><email xlink:type="simple">i.r.i.ss@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1751-7554</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баженова</surname><given-names>Мария Михайловна</given-names></name><name name-style="western" xml:lang="en"><surname>Bazhenova</surname><given-names>Mariya</given-names></name></name-alternatives><bio xml:lang="ru"><p>лаборант в управлении научных исследований</p></bio><bio xml:lang="en"><p>Laboratory assistant</p></bio><email xlink:type="simple">kotok04@bk.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «Кузбасский центр сварки и контроля»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Limited Liability Company «Kuzbass Center for Welding and Control»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Сибирский государственный индустриальный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Industrial University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>29</day><month>12</month><year>2023</year></pub-date><volume>0</volume><issue>4</issue><fpage>21</fpage><lpage>29</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ожиганов Е.А., Коновалов С.В., Панченко И.А., Баженова М.М., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Ожиганов Е.А., Коновалов С.В., Панченко И.А., Баженова М.М.</copyright-holder><copyright-holder xml:lang="en">Ozhiganov E., Konovalov S., Panchenko I., Bazhenova M.</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://vestnik.sibsiu.ru/jour/article/view/100">https://vestnik.sibsiu.ru/jour/article/view/100</self-uri><abstract><p>Работа выполнена с применением физических методов материаловедения, разрушающих и неразрушающих испытаний. Исследованы образцы конструкционных углеродистых и низколегированных сталей марок Ст3сп, 10, 09Г2С, 17ГС. Проведен анализ изменений в структуре сварных соединений из конструкционных сталей под действием пластической деформации. Материалом для искусственных дефектов служили графит и толченое стекло, которые вводили в сварочную ванну. Представлены результаты исследования образцов с искусственными дефектами и бездефектных образцов, выполненных ручной дуговой сваркой и сваркой модулированным током. На основе математических закономерностей изменения параметров акустической эмиссии (АЭ) сигнала для исследуемых сталей марок Ст3сп, 10, 09Г2С, 17ГС разработан четырехпараметрический трехуровневый критерий определения стадии пластической деформации. Рассматриваемый критерий позволяет качественно оценить степень пластической деформации при стресс-испытаниях трубопроводов (по всей области локации АЭ), что особенно важно для труб с различным утонением стенки. В тонкой структуре зоны термического влияния сварки у линии сплавления и в наплавленном металле выявлены изгибные экстинкционные контуры, свидетельствующие о наличии внутренних напряжений. Число контуров возрастает по мере приближения к линии сплавления. Морфологическими составляющими независимо от способа сварки в структуре основного металла являются пластинчатый перлит и феррит, в структуре металла шва – пластинчатый перлит, феррит и мартенсит (объемная доля зависит от способа сварки)</p></abstract><trans-abstract xml:lang="en"><p>The work was performed using physical methods of materials science, destructive and non-destructive testing. Samples of structural carbon and low-alloy steels of grades St3sp, 10, 09G2S, 17GS have been studied. The analysis of changes in the structure of welded joints made of structural steels under the influence of plastic deformation is carried out. The material for artificial defects was graphite and crushed glass, which were introduced into the welding bath. The results of the study of samples with artificial defects and defect-free samples made by manual arc welding and modulated current welding are presented. Based on the mathematical patterns of changes in the parameters of acoustic emission (AE) of the signal for the studied steels of grades St3sp, 10, 09G2S, 17GS, a four-parameter three-level criterion for determining the stage of plastic deformation has been developed. The criterion under consideration allows us to qualitatively assess the degree of plastic deformation during stress tests of pipelines (throughout the AE location area), which is especially important for pipes with different wall thinning. In the fine structure of the zone of thermal influence of welding at the fusion line and in the deposited metal, bending extinction contours were revealed, indicating the presence of internal stresses. The number of contours increases as you approach the fusion line. The morphological components, regardless of the welding method, in the structure of the base metal are lamellar perlite and ferrite, in the structure of the seam metal – lamellar perlite, ferrite and martensite (the volume fraction depends on the welding method).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ручная дуговая сварка</kwd><kwd>модулированный ток</kwd><kwd>микроструктура</kwd><kwd>углеродистая сталь</kwd><kwd>низколегированная сталь</kwd></kwd-group><kwd-group xml:lang="en"><kwd>manual arc welding</kwd><kwd>manual arc welding with modulated current</kwd><kwd>microstructure</kwd><kwd>carbon and low alloy steels</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">Носов В.В., Григорьев Е.В., Артюшенко А.П., Перетятко С.А. 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