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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Doklady Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Doklady Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Российской академии наук. Химия, науки о материалах</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2686-9535</issn><issn publication-format="electronic">3034-5111</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">651920</article-id><article-id pub-id-type="doi">10.31857/S2686953524010052</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CHEMISTRY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ХИМИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Effect of surface microstructure for corrosion resistance and magnetic properties of an amorphous cobalt-based Co-Si-Fe-Cr-Al ALLOY</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние микроструктуры поверхности на коррозионную устойчивость и магнитные свойства аморфного сплава на основе кобальта Co-Si-Fe-Cr-Al</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuznetsova</surname><given-names>I. I.</given-names></name><name xml:lang="ru"><surname>Кузнецова</surname><given-names>И. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Department of Chemistry</p></bio><bio xml:lang="ru"><p>Химический факультет</p></bio><email>lmkustov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lebedeva</surname><given-names>O. K.</given-names></name><name xml:lang="ru"><surname>Лебедева</surname><given-names>О. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Department of Chemistry</p></bio><bio xml:lang="ru"><p>Химический факультет</p></bio><email>lmkustov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kultin</surname><given-names>D. Yu.</given-names></name><name xml:lang="ru"><surname>Культин</surname><given-names>Д. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Department of Chemistry</p></bio><bio xml:lang="ru"><p>Химический факультет</p></bio><email>lmkustov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Perov</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Перов</surname><given-names>Н. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Department of Chemistry</p></bio><bio xml:lang="ru"><p>Физический факультет</p></bio><email>lmkustov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kustov</surname><given-names>L. M.</given-names></name><name xml:lang="ru"><surname>Кустов</surname><given-names>Л. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Department of Chemistry</p></bio><bio xml:lang="ru"><p>Химический факультет</p></bio><email>lmkustov@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский Государственный Университет имени М.В. Ломоносова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт органической химии им. Н.Д. Зелинского Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-04-05" publication-format="electronic"><day>05</day><month>04</month><year>2024</year></pub-date><volume>514</volume><issue>1</issue><fpage>50</fpage><lpage>58</lpage><history><date date-type="received" iso-8601-date="2025-02-02"><day>02</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/2686-9535/article/view/651920">https://journals.eco-vector.com/2686-9535/article/view/651920</self-uri><abstract xml:lang="en"><p>The surface of an amorphous cobalt-based alloy of nominal composition Co75Si15Fe5Cr4.5Al0.5 was modified by nanostructures at anodizing in an ionic liquid – bis(trifluoromethane sulfonyl)imide 1-butyl-3-methyl- imidazolium. The magnetic (saturation specific magnetization and coercive force) and corrosion (corrosion potential and resistance) characteristics of an amorphous alloy before and after electrochemical modification of the surface by nanostructures are compared. Modification of the alloy surface partially changes its magnetic properties. After corrosion tests, an increase in the value of coercive force is observed. Corrosion tests were carried out by the method of polarization curves in Ringer’s solution. The corrosion resistance of alloys modified by oxide nanostructures is higher than the corrosion resistance of a polished alloy. The increase in corrosion resistance is mainly determined by the presence of nanostructures.</p></abstract><trans-abstract xml:lang="ru"><p>Поверхность аморфного сплава на основе кобальта номинального состава Co75Si15Fe5Cr4.5Al0.5 была модифицирована наноструктурами при анодировании в ионной жидкости – бис(трифторметансульфонил)имиде 1-бутил-3-метилимидазолия. Проведено сравнение магнитных (удельной намагниченности насыщения и коэрцитивной силы) и коррозионных (потенциала коррозии и сопротивления) характеристик аморфного сплава до и после электрохимического модифицирования поверхности наноструктурами. Модифицирование поверхности сплава частично меняет его магнитные свойства. После коррозионных испытаний наблюдается возрастание значения коэрцитивной силы. Коррозионные испытания проводили методом поляризационных кривых в растворе Рингера. Коррозионная устойчивость модифицированных оксидными наноструктурами сплавов выше, чем коррозионная устойчивость шлифованного сплава. Увеличение коррозионной стойкости определяется в основном присутствием наноструктур.</p></trans-abstract><kwd-group xml:lang="en"><kwd>ionic liquids</kwd><kwd>anodizing</kwd><kwd>nanostructures</kwd><kwd>magnetic nanoparticles</kwd><kwd>surface functionalization</kwd><kwd>magnetic materials</kwd><kwd>magnetic alloys</kwd><kwd>corrosion</kwd><kwd>self-organization</kwd><kwd>information storage</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ионные жидкости</kwd><kwd>анодирование</kwd><kwd>наноструктуры</kwd><kwd>магнитные наночастицы</kwd><kwd>функционализация поверхности</kwd><kwd>магнитные материалы</kwd><kwd>магнитные сплавы</kwd><kwd>коррозия</kwd><kwd>самоорганизация</kwd><kwd>хранение информации</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский Научный Фонд</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation</institution></institution-wrap></funding-source><award-id>23-73-30007</award-id></award-group><funding-statement xml:lang="en">The work was carried out with the financial support of the Russian Science Foundation (project No. 23-73-30007).</funding-statement><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Российского научного фонда (проект № 23-73-30007).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Chiriac H., Herea D.-D., Corodeanu S. // J. 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