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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">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2024-5-604-611</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2798</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>ИННОВАЦИИ В МЕТАЛЛУРГИЧЕСКОМ ПРОМЫШЛЕННОМ И ЛАБОРАТОРНОМ ОБОРУДОВАНИИ, ТЕХНОЛОГИЯХ И МАТЕРИАЛАХ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INNOVATIONS IN METALLURGICAL INDUSTRIAL AND LABORATORY EQUIPMENT, TECHNOLOGIES AND MATERIALS</subject></subj-group></article-categories><title-group><article-title>Влияние комбинированного теплового воздействия электродуговой сварки с алюмотермитной засыпкой на внутренние напряжения в стальной пластине</article-title><trans-title-group xml:lang="en"><trans-title>Influence of combined thermal effect of electric arc welding with aluminothermic backfill on internal stresses in a steel plate</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1795-0021</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ткачева</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tkacheva</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анастасия Валерьевна Ткачева, к.ф.-м.н., старший научный сотрудник</p><p>Россия, 681005, Хабаровский край, Комсомольск-на-Амуре, ул. Металлургов, 1</p></bio><bio xml:lang="en"><p>Anastasiya V. Tkacheva, Cand. Sci. (Phys.-Math), Senior Researcher</p><p>1 Metallurgov Str., Komsomolsk-on-Amur, Khabarovsk Territory 681005, Russian Federation</p></bio><email xlink:type="simple">4nansi4@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/0000-0002-9308-1326</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абашкин</surname><given-names>Е. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Abashkin</surname><given-names>E. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Евгеньевич Абашкин, к.т.н., старший научный сотрудник</p><p>Россия, 681005, Хабаровский край, Комсомольск-на-Амуре, ул. Металлургов, 1</p></bio><bio xml:lang="en"><p>Evgenii E. Abashkin, Cand. Sci. (Eng.), Senior Researcher</p><p>1 Metallurgov Str., Komsomolsk-on-Amur, Khabarovsk Territory 681005, Russian Federation</p></bio><email xlink:type="simple">abashkine@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт машиноведения и металлургии Хабаровского Федерального исследовательского центра Дальневосточного отделения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy and Mechanical Engineering of the Khabarovsk Federal Research Center, Far-Eastern Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>10</month><year>2024</year></pub-date><volume>67</volume><issue>5</issue><fpage>604</fpage><lpage>611</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ткачева А.В., Абашкин Е.Е., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ткачева А.В., Абашкин Е.Е.</copyright-holder><copyright-holder xml:lang="en">Tkacheva A.V., Abashkin E.E.</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://fermet.misis.ru/jour/article/view/2798">https://fermet.misis.ru/jour/article/view/2798</self-uri><abstract><p>Работа посвящена автоматической электродуговой сварке под слоем флюса с применением присадочного материала в виде алюмотермитной засыпки для соединения толстолистовых конструкций. Материал пластины принимается упругопластическим, деформации – малыми и состоящими из упругих и пластических. Обратимые (упругие) деформации связаны с напряжениями законом Дюамеля-Неймана, необратимые (пластические) зарождаются и растут благодаря пластическому течению в рамках ассоциированного закона пластического течения. За условие пластического течения принято модифицированное условие Мизеса, в котором учитывается вязкость. Источник тепла от автоматической электродуговой сварки моделируется двойным эллипсоидом, предложенным Джон А. Голдаком, а тепло от химической реакции в области фронта горения алюмотермита задается значением теплового потока. Упругие модули и предел текучести зависят от температуры. Рассматривались пластины с толщинами 12, 14, 16, 18 мм. Сравнивая интенсивность остаточных напряжений в верхнем и нижнем слоях пластин и по их толщинам, можно утверждать, что с повышением толщины возрастают области распространения высокой интенсивности остаточных напряжений и увеличиваются их значения. Эти области располагаются внутри материала в околошовной зоне на участке синеломкости. Анализируя распрямления полей температур для случая электродуговой сварки с присадочным материалом в виде алюмотермитной засыпки и без него, установлено, что в результате химической реакции температура в зоне шва повышается на 500 °С. Это дает возможность для применения данной технологии проведения сварочных работ при низких климатических температурах.</p></abstract><trans-abstract xml:lang="en"><p>The paper is devoted to automatic electric arc welding under a flux layer using filler material in the form of aluminothermic backfill for joining thick-plate structures. The plate material is assumed to be elastic-plastic, the deformations are small and consist of elastic and plastic. Reversible (elastic) deformations are associated with stresses by the Duhamel-Neumann law, irreversible (plastic) ones arise and grow due to plastic flow within the framework of the associated law of plastic flow. The modified Mises condition, which takes into account viscosity, is adopted as the condition of plastic flow. The heat source from automatic electric arc welding is modeled by a double ellipsoid proposed by John A. Goldak, and heat from chemical reaction in the region of aluminothermiс combustion front is specified by the heat flux value. Elastic moduli and yield strength depend on temperature. Plates with thicknesses of 12, 14, 16, 18 mm were considered. Comparing the intensity of residual stresses in the upper and lower layers of the plates and by their thicknesses, it can be stated that with increasing thickness, the areas of distribution of residual stresses high intensity increase and their values increase too. These areas are located inside the material in the near-weld zone in the area of blue brittleness. Analyzing straightening of temperature fields, for the case of electric arc welding with filler material in the form of aluminothermiс backfill and without it, it was found that as a result of a chemical reaction, the temperature in the weld zone increases by 500 °C, this makes it possible to use this technology for welding at low climatic temperatures.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>порошковый присадочный материал</kwd><kwd>алюмотермия</kwd><kwd>электродуговая сварка</kwd><kwd>упругость</kwd><kwd>пластичность</kwd><kwd>засыпка</kwd><kwd>низкая температура</kwd></kwd-group><kwd-group xml:lang="en"><kwd>powder filler material</kwd><kwd>aluminothermy</kwd><kwd>electric arc welding</kwd><kwd>elasticity</kwd><kwd>plasticity</kwd><kwd>filling</kwd><kwd>low temperature</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Хабаровского федерального научного центра Дальневосточного отделения Российской академии наук.</funding-statement><funding-statement xml:lang="en">The work was performed within the framework of the state assignment of the Khabarovsk Federal Research Center, Far Eastern Branch of the Russian Academy of Sciences.</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">Li L., Mi G., Wang Ch. 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