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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">10.26896/1028-6861-2024-90-4-40-45</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-2169</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 механических свойств и микроструктуры сварных соединений из конструкционной высокопрочной стали S690QL российского и зарубежного производства</article-title><trans-title-group xml:lang="en"><trans-title>Study of the mechanical properties and the microstructure of welded joints made of structural high-strength steels S690QL of Russian and foreign origin</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>Галкин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Galkin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Александрович Галкин,</p><p>603155, г. Нижний Новгород, ул. Минина, д. 24.</p></bio><bio xml:lang="en"><p>Andrey A. Galkin, </p><p>24, ul. Minina, Nizhny Novgorod, 603155.</p></bio><email xlink:type="simple">ips4@nntu.ru</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>Мордовина</surname><given-names>Ю. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Mordovina</surname><given-names>Yu. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юлия Сергеевна Мордовина, </p><p>603155, г. Нижний Новгород, ул. Минина, д. 24.</p></bio><bio xml:lang="en"><p>Yuliya S. Mordovina,</p><p>24, ul. Minina, Nizhny Novgorod, 603155.</p></bio><email xlink:type="simple">ips4@nntu.ru</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>Аносов</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Anosov</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максим Сергеевич Аносов,</p><p>603155, г. Нижний Новгород, ул. Минина, д. 24.</p></bio><bio xml:lang="en"><p>Maksim S. Anosov,</p><p>24, ul. Minina, Nizhny Novgorod, 603155.</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>Шатагин</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shatagin</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Александрович Шатагин,</p><p>603155, г. Нижний Новгород, ул. Минина, д. 24.</p></bio><bio xml:lang="en"><p>Dmitriy A. Shatagin,</p><p>24, ul. Minina, Nizhny Novgorod, 603155.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Нижегородский государственный технический университет имени Р. Е. Алексеева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>R. E. Alekseev Nizhny Novgorod State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>21</day><month>04</month><year>2024</year></pub-date><volume>90</volume><issue>4</issue><fpage>40</fpage><lpage>45</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Галкин А.А., Мордовина Ю.С., Аносов М.С., Шатагин Д.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Галкин А.А., Мордовина Ю.С., Аносов М.С., Шатагин Д.А.</copyright-holder><copyright-holder xml:lang="en">Galkin A.A., Mordovina Y.S., Anosov M.S., Shatagin D.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://www.zldm.ru/jour/article/view/2169">https://www.zldm.ru/jour/article/view/2169</self-uri><abstract><p>Сталь S690QL предназначена для сварных тяжело нагруженных конструкций: грузоподъемных стрел, траверсов, прицепов тяжеловозов и др. В работе представлены результаты исследования механических свойств и микроструктуры стали S690QL отечественного и зарубежного производства и вязких свойств сварных образцов при разных температурах. Использовали методы эмиссионной атомной спектроскопии, испытаний на растяжение и ударную вязкость, микроструктурного анализа. Твердость определяли методом Виккерса. Установлено, что химический состав обеих сталей практически идентичен. Значения ударной вязкости образцов из отечественной S690QL превышают показатели зарубежной. Особенно это касается металла, не подвергнутого сварочным процессам (ударная вязкость для российской стали в этой зоне составила 200 Дж/см2 при –40 °C, что превышает ударную вязкость для зарубежной стали в той же зоне почти на 80 %). Определены температуры хрупко-вязкого перехода для зон сварных соединений из российской S690QL. У зон наплавленного металла и термического влияния эта температура составила –40 °C. Во всех зонах сварного шва контрольных сварных соединений стали обоих производств обладают схожей микроструктурой. Твердость в исследуемых образцах имеет близкие значения и схожесть изменения по зонам сварных соединений. Полученные результаты могут быть использованы в машиностроении при сертификации и проектировании сварных конструкций прежде всего для арктической зоны.</p></abstract><trans-abstract xml:lang="en"><p>Steel S690QL is designed for welded heavy-loaded structures: lifting booms, traverses, trailers of heavy trucks, etc. We present the results of studying the mechanical properties and the microstructure of S690QL steel manufactured both in Russia and abroad, as well as the viscous properties of welded samples at different temperatures. The methods of atomic emission spectroscopy, tensile and impact strength tests, and microstructural analysis were used. Hardness was determined by the Vickers method. It is shown that the chemical composition of both grades of steel is almost identical. The values of the impact strength of samples made of domestic S690QL exceed those of foreign ones. This is especially true for metal that has not been subjected to welding processes (the impact strength for Russian steel S690QL in this zone was 200 J/cm2 at –40°C, which exceeds the impact strength for foreign analogs in the same zone by almost 80%). The temperatures of brittle-viscous transition (BVT) for zones of welded joints made of Russian steel S690QL were determined. In the areas of welded metal deposit and heat affected zones the BVT temperature was –40°C. The microstructures of both steels are similar in all areas of the weld seam of control welded joints. The hardness in the studied samples of welded joints has similar values and similar changes in the zones of welded joints. The results obtained can be used in mechanical engineering for certification and design of welded structures, primarily for the Arctic zone.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>высокопрочные конструкционные стали</kwd><kwd>хладостойкость</kwd><kwd>ударная вязкость</kwd><kwd>S690QL</kwd></kwd-group><kwd-group xml:lang="en"><kwd>high-strength structural steels</kwd><kwd>cold resistance</kwd><kwd>impact strength</kwd><kwd>steel S690QL</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">Arsić D., Lazić V., Nikolić R., et al. Application of the S690QL class steels in responsible welded structures / Mater. Eng. 2013. N 20. P. 174 – 183.</mixed-citation><mixed-citation xml:lang="en">. Arsić D., Lazić V., Nikolić R., et al. Application of the S690QL class steels in responsible welded structures / Mater. Eng. 2013. N 20. 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