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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">sat</journal-id><journal-title-group><journal-title xml:lang="ru">НАУКА и ТЕХНИКА</journal-title><trans-title-group xml:lang="en"><trans-title>Science &amp; Technique</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-1031</issn><issn pub-type="epub">2414-0392</issn><publisher><publisher-name>Belarusian National Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21122/2227-1031-2023-23-1-27-33</article-id><article-id custom-type="elpub" pub-id-type="custom">sat-2632</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>МАШИНОСТРОЕНИЕ И МАШИНОВЕДЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MECHANICAL ENGINEERING АND ENGINEERING SCIENCE</subject></subj-group></article-categories><title-group><article-title>Структура и свойства черных керамических МДО-покрытий на алюминиевых сплавах</article-title><trans-title-group xml:lang="en"><trans-title>Structure and Properties of Black Ceramic MAO Coatings on Aluminum Alloys</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>Алексеев</surname><given-names>Ю. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Aliakseyeu</surname><given-names>Yu. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, доцент </p><p>г. Минск</p></bio><bio xml:lang="en"><p>Minsk</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>Королёв</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Korolyov</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук</p><p>г. Минск</p></bio><bio xml:lang="en"><p>Minsk</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>Нисс</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Niss</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, доцент </p><p>г. Минск</p></bio><bio xml:lang="en"><p>Minsk</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>Будницкий</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Budnitskiy</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Инженер</p><p>Адрес для переписки: Будницкий Алексей Сергеевич – Белорусский национальный технический университет,  ул. Я. Коласа, 24,  220013, г. Минск, Республика Беларусь.  Тел.: +375 17 292-76-78</p><p>budnitskiy@park.bntu.by</p></bio><bio xml:lang="en"><p>Address for correspondence:  Budnitskiy Alexey S. – Belarusian National Technical University, 24, Ya. Kolasa str., 220013, Minsk, Republic of Belarus.  Tel.: +375 17 292-76-78 budnitskiy@park.bntu.by</p></bio><email xlink:type="simple">budnitskiy@park.bntu.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский национальный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Belarusian National Technical 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>09</day><month>02</month><year>2023</year></pub-date><volume>22</volume><issue>1</issue><fpage>27</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алексеев Ю.Г., Королёв А.Ю., Нисс В.С., Будницкий А.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Алексеев Ю.Г., Королёв А.Ю., Нисс В.С., Будницкий А.С.</copyright-holder><copyright-holder xml:lang="en">Aliakseyeu Y.G., Korolyov A.Y., Niss V.S., Budnitskiy A.S.</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://sat.bntu.by/jour/article/view/2632">https://sat.bntu.by/jour/article/view/2632</self-uri><abstract><p>Существующие процессы получения черных износостойких покрытий включают химические методы, анодное оксидирование с последующим окрашиванием в анилиновых красителях, электрохимическое осаждение, вакуумно-плазменную обработку, микродуговое оксидирование (МДО). Большой интерес для формирования светопоглощающих покрытий вызывает метод МДО, характеризующийся как надежный и экологически безопасный процесс, обеспечивающий формирование твердого керамикоподобного оксидного слоя с высокой коррозионной стойкостью и хорошей адгезией к основе. Поэтому разработка методов получения качественных черных МДО-покрытий, обладающих высокими оптическими и механическими характеристиками, является в настоящее время актуальной задачей. В статье приведены результаты исследования структуры и свойств черных керамических покрытий на алюминиевом сплаве АМг2, полученных методом микродугового оксидирования с применением силикатно-щелочного и силикатно-фосфатного электролитов, содержащих в качестве окрашивающих компонентов ферроцианид калия и вольфрамат натрия. В качестве дополнительных элементов, обеспечивающих окрашивание покрытий, в электролиты добавляли вольфрамовокислый натрий и ферроцианид калия концентрацией от 0,5 до 2,0 г/л. Установлено, что наиболее насыщенные черные покрытия в силикатно-щелочном электролите формируются при добавлении 1,5–2,0 г/л вольфрамата натрия, а в силикатно-фосфатном электролите при добавлении 1,5 г/л ферроцианида калия. Применение электролита, содержащего вольфрамат натрия, позволяет сформировать покрытия с меньшей высотой микронеровностей (Ra = 0,97–1,11 мкм) по сравнению с покрытиями, полученными в электролите, содержащем ферроцианид калия (Ra до 4,20 мкм). Максимальная износостойкость полученных покрытий (скорость износа (0,38–0,59) × 10–4 мм3/(м×Н)) достигается при обработке в исследованных электролитах продолжительностью 10 мин. При этом толщина покрытий составляет 21–31 мкм. Дальнейшее увеличение продолжительности обработки не оказывает существенного влияния на скорость износа.</p></abstract><trans-abstract xml:lang="en"><p>The existing processes for obtaining black wear-resistant coatings include chemical methods, anodic oxidation followed by painting in aniline dyes, electrochemical deposition, vacuum plasma treatment, microarc oxidation (MAO). Of great interest for the formation of light-absorbing coatings is the MAO method, which is characterized as a reliable and environmentally friendly process, which provides the formation of a hard ceramic-like oxide layer with high corrosion resistance аnd good adhesion to the substrate. Therefore, the development of methods for obtaining high-quality black MAO coatings with both high optical and mechanical characteristics is currently an urgent task. The paper presents the results of a study of the structure and properties of black ceramic coatings on aluminum alloy AMg2 obtained by microarc oxidation using silicate-alkaline and silicate-phosphate electrolytes containing potassium ferrocyanide and sodium tungstate as coloring components. Sodium tungsten acid and potassium ferrocyanide with a concentration of  0.5 to 2.0 g/l were added to the electrolytes as additional components that ensured the coloring of the coatings. It has been established that the most saturated black coatings in a silicate-alkaline electrolyte are formed with the addition of 1.5–2.0 g/l of sodium tungstate, and in a silicate-phosphate electrolyte with the addition of 1.5 g/l of potassium ferrocyanide. The use of an electrolyte containing sodium tungstate makes it possible to form coatings with a lower microroughness height (Ra 0.97–1.11 µm) compared to coatings obtained in an electrolyte containing potassium ferrocyanide (Ra up to 4.20 µm). The maximum wear resistance of the resulting coatings (wear rate (0.38–0.59) × 10–4 mm3/(m×N)) is achieved by treatment in the studied electrolytes with a duration of 10 min. In this case, the thickness of the coatings is 21–31 µm. A further increase in the duration of processing does not have a significant effect on the wear rate.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>микродуговое оксидирование</kwd><kwd>износостойкость</kwd><kwd>шероховатость</kwd><kwd>морфология</kwd><kwd>электролит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microarc oxidation</kwd><kwd>wear resistance</kwd><kwd>roughness</kwd><kwd>morphology</kwd><kwd>electrolyte</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">Plasma Electrolytic Oxidation of Magnesium and its Alloys: Mechanism, Properties and Applications / G. B. Darband [et al.] // Journal of Magnesium and Alloys. 2017. 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