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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Frontier Materials &amp; Technologies</journal-id><journal-title-group><journal-title xml:lang="en">Frontier Materials &amp; Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Frontier Materials &amp; Technologies</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2782-4039</issn><issn publication-format="electronic">2782-6074</issn><publisher><publisher-name xml:lang="en">Togliatti State University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">57</article-id><article-id pub-id-type="doi">10.18323/2073-5073-2020-4-43-50</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">THE STUDY OF THE INFLUENCE OF ZNCL2 CONTENT IN A FLUX FOR BRAZING OF AL-MG ALLOYS ON ITS TECHNOLOGICAL PROPERTIES</article-title><trans-title-group xml:lang="ru"><trans-title>ИССЛЕДОВАНИЕ ВЛИЯНИЯ СОДЕРЖАНИЯ ZNCL2 ВО ФЛЮСЕ ДЛЯ ПАЙКИ AL-MG СПЛАВОВ НА ЕГО ТЕХНОЛОГИЧЕСКИЕ СВОЙСТВА</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4831-1487</contrib-id><name-alternatives><name xml:lang="en"><surname>Stepanov</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Степанов</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>postgraduate student</p></bio><bio xml:lang="ru"><p>аспирант</p></bio><email>stepanov_222@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow Aviation Institute (National Research University)</institution></aff><aff><institution xml:lang="ru">Московский авиационный институт (национальный исследовательский университет)</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-12-30" publication-format="electronic"><day>30</day><month>12</month><year>2020</year></pub-date><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>43</fpage><lpage>50</lpage><history><date date-type="received" iso-8601-date="2021-02-24"><day>24</day><month>02</month><year>2021</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://vektornaukitech.ru/jour/article/view/57">https://vektornaukitech.ru/jour/article/view/57</self-uri><abstract xml:lang="en"><p>Aluminum-magnesium alloys are ductile alloys with good weldability, corrosion resistance, and a high fatigue strength level. Aluminum-magnesium alloys contain up to 6 % magnesium. The higher its content, the stronger is the alloy. However, these alloys with high magnesium content are difficult to solder. Therefore, the task is to create flux compositions for high-temperature brazing of these alloys providing high-quality brazed joints. The work investigated the influence of the ZnCl<sub>2</sub> activator on the technological properties of the flux. The authors tested the flux compositions with ZnCl<sub>2</sub> content of 0 to 12 %. The tests were carried out on the AMg2 alloy using the AK12 solder. The authors evaluated the influence of ZnCl<sub>2</sub> content on the spreading area of solder, the spreading uniformity, and the surface condition. The study revealed a significant increase in the spreading area of solder when introducing the ZnCl<sub>2</sub> activator into the flux and the introduction of 4 % zinc chloride made it possible to increase the spreading zone of a solder drop by 50-55 %. The authors considered the samples brazed with a flux that did not contain ZnCl<sub>2</sub> and using flux with the addition of 4 % ZnCl<sub>2</sub>. Activator content in the flux increased by 4 % before reaching 12 %. The study identified the strong interaction between the flux and the base metal with the release of gaseous products leading to the pore formation. As a result of the work, it was revealed that ZnCl<sub>2</sub> significantly affects the flux properties, allowing increasing the solder spreading area; however, in the result of reactions with the formation of gaseous products, it can lead to the porosity of the brazed joint.</p></abstract><trans-abstract xml:lang="ru"><p>Алюминиево-магниевые сплавы - пластичные сплавы, обладающие хорошей свариваемостью, коррозийной стойкостью и высоким уровнем усталостной прочности. В алюминиево-магниевых сплавах содержится до 6 % магния. Чем выше его содержание, тем прочнее сплав. Однако данные сплавы с высоким содержанием магния с трудом поддаются пайке, поэтому стоит задача определить составы флюсов для высокотемпературной пайки данных сплавов, обеспечивающие высокое качество паяных соединений. В работе было исследовано влияние активатора ZnCl<sub>2</sub> на технологические свойства флюса. Проведено испытание составов флюса с содержанием ZnCl<sub>2</sub> от 0 до 12 %. Испытания проводились на сплаве АМг2 с применением припоя АК12. Оценено влияние содержания ZnCl<sub>2</sub> на площадь растекания припоя, равномерность растекания и состояние поверхности растекшейся капли припоя. Выявлено значительное увеличение площади растекания припоя при введении во флюс активатора ZnCl<sub>2</sub>, введение 4 % хлорида цинка позволило увеличить площадь растекания капли припоя на 50-55 %. Рассмотрены образцы, паянные флюсом, который не содержит ZnCl<sub>2</sub>, и флюсами с добавкой хлорида цинка. Содержание активатора во флюсе увеличивалось на 4 % до достижения 12 %. Выявлено сильное взаимодействие флюса с основным металлом с выделением газообразных продуктов, приводящих к порообразованию. В результате работы установлено, что ZnCl<sub>2</sub> в значительной степени влияет на свойства флюса, позволяя увеличить площадь растекания припоя, однако в результате реакций с образованием газообразных продуктов может приводить к пористости паяного соединения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>flux</kwd><kwd>zinc chloride</kwd><kwd>activator</kwd><kwd>brazing</kwd><kwd>oxidation film destruction</kwd><kwd>aluminum-magnesium alloys</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>флюс</kwd><kwd>хлорид цинка</kwd><kwd>активатор</kwd><kwd>пайка</kwd><kwd>разрушение оксидной пленки</kwd><kwd>алюминиево-магниевые сплавы</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Sharma A., Lee S.H., Ban H.O., Shim Y.S., Jung J.-P. 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