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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">cpomaem</journal-id><journal-title-group><journal-title xml:lang="ru">Коррозия: защита материалов и методы исследований</journal-title><trans-title-group xml:lang="en"><trans-title>Title in english</trans-title></trans-title-group></journal-title-group><publisher><publisher-name>ИФХЭ РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.61852/2949-3412-2025-3-2-80-90</article-id><article-id custom-type="elpub" pub-id-type="custom">cpomaem-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>Статьи</subject></subj-group></article-categories><title-group><article-title>Импедансная спектроскопия бесхроматных конверсионных покрытий на медьсодержащих алюминиевых сплавах Д16 и В95Т3</article-title><trans-title-group xml:lang="en"><trans-title>Impedance spectroscopy of chromate-free conversion coatings on copper-containing aluminum alloys D16 and B95T3</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>Чугунов</surname><given-names>Д. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Chugunov</surname><given-names>D. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119071, Москва, Ленинский проспект, д. 31, корп. 4</p></bio><bio xml:lang="en"><p>31-4, Leninsky Prospect, 119071, Moscow</p></bio><email xlink:type="simple">osvpkz@outlook.com</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>Кузенков</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzenkov</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119071, Москва, Ленинский проспект, д. 31, корп. 4</p></bio><bio xml:lang="en"><p>31-4, Leninsky Prospect, 119071, Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральное государственное бюджетное учреждение науки Институт физической химии и электрохимии им. А.Н. Фрумкина Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>13</day><month>07</month><year>2025</year></pub-date><volume>0</volume><issue>2</issue><fpage>80</fpage><lpage>90</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чугунов Д.О., Кузенков Ю.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Чугунов Д.О., Кузенков Ю.А.</copyright-holder><copyright-holder xml:lang="en">Chugunov D.O., Kuzenkov Y.A.</copyright-holder><license 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.cpmrm.ru/jour/article/view/100">https://www.cpmrm.ru/jour/article/view/100</self-uri><abstract><p>Спектроскопия электрохимического импеданса представляет собой метод исследования различных свойств покрытий, включая конверсионные покрытия на алюминиевых сплавах. Этот метод позволяет анализировать процессы коррозии и механизмы защиты, предоставляя информацию о структуре и свойствах покрытий. Бесхроматные технологии получения покрытия методом химического оксидирования продолжают развиваться, поэтому понимание того, какие характеристики будут иметь покрытия на различных алюминиевых сплавах в зависимости от состава конвертирующего раствора и модифицирующих добавок является актуальной задачей. В данной статье с помощью метода электрохимического импеданса были исследованы ингибированные и неингибированные бесхроматные конверсионные покрытия ИФХАНАЛ-3, модифицированные 1,2,3 бензотриазолом и толилтриазолом (5-метилбензотриазолом). Было показано, что модифицирующие добавки по-разному влияют на покрытия на сплавах Д16 и В95Т3, что, вероятно, связано с различным содержанием легирующих элементов и, в первую очередь, с количеством меди в составе сплавов. При этом последующее наполнение покрытий в растворе ингибитора коррозии показывает наибольший эффект для модифицированных покрытий, если исходное покрытие обладало большей равномерности, согласно рассчитанным параметрам импеданса.</p></abstract><trans-abstract xml:lang="en"><p>Electrochemical impedance spectroscopy is a method for studying various properties of coatings, including conversion coatings on aluminum alloys. This method allows to analyze corrosion processes and protection mechanisms, providing information about the structure and properties of coatings. Chromate-free coating technologies by chemical oxidation continue to evolve, so understanding what characteristics coatings on various aluminum alloys will have, depending on the composition of the converting solution and modifying additives, is an urgent task. In this article, inhibited and non-inhibited chromate-free conversion coatings of IFKHANAL-3 modified with 1,2,3-benzotriazole and tolyltriazole (5-methylbenzotriazole) were studied using the electrochemical impedance method. It has been shown that modifying additives have different effects on coatings on D16 and V95T3 alloys, which is probably due to the different content of alloying elements and, first of all, the amount of copper in the alloys. In this case, the subsequent filling of coatings in a corrosion inhibitor solution shows the greatest effect for modified coatings if the initial coating had greater uniformity, according to the calculated impedance parameters.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>импеданс</kwd><kwd>спектроскопия электрохимического импеданса</kwd><kwd>алюминиевые сплавы</kwd><kwd>конверсионные покрытия</kwd><kwd>ингибиторы коррозии</kwd><kwd>бесхроматные технологии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>impedance</kwd><kwd>electrochemical impedance spectroscopy</kwd><kwd>aluminum alloys</kwd><kwd>conversion coatings</kwd><kwd>corrosion inhibitors</kwd><kwd>chromate-free technologies</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена при финансовой поддержке Министерства науки и высшего образования Российской Федерации</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">A. 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