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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">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">903</article-id><article-id pub-id-type="doi">10.18323/2782-4039-2024-1-67-1</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>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Changes in the structure, mechanical and corrosion properties of the Mg–Zn–Zr system alloy subjected to equal channel angular pressing</article-title><trans-title-group xml:lang="ru"><trans-title>Изменение структуры, механических и коррозионных свойств сплава системы Mg–Zn–Zr, подвергнутого равноканальному угловому прессованию</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2652-2646</contrib-id><name-alternatives><name xml:lang="en"><surname>Aksenov</surname><given-names>Denis A.</given-names></name><name xml:lang="ru"><surname>Аксенов</surname><given-names>Денис Алексеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>junior researcher</p></bio><bio xml:lang="ru"><p>младший научный сотрудник</p></bio><email>aksyonovda@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fakhretdinova</surname><given-names>Elvira I.</given-names></name><name xml:lang="ru"><surname>Фахретдинова</surname><given-names>Эльвира Илдаровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Engineering), researcher</p></bio><bio xml:lang="ru"><p>кандидат технических наук, научный сотрудник</p></bio><email>yelka89@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5522-4314</contrib-id><name-alternatives><name xml:lang="en"><surname>Asfandiyarov</surname><given-names>Rashid N.</given-names></name><name xml:lang="ru"><surname>Асфандияров</surname><given-names>Рашид Наилевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Engineering), researcher</p></bio><bio xml:lang="ru"><p>кандидат технических наук, научный сотрудник</p></bio><email>a.r.n@list.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1993-413X</contrib-id><name-alternatives><name xml:lang="en"><surname>Raab</surname><given-names>Arseniy G.</given-names></name><name xml:lang="ru"><surname>Рааб</surname><given-names>Арсений Георгиевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Engineering), researcher</p></bio><bio xml:lang="ru"><p>кандидат технических наук, научный сотрудник</p></bio><email>agraab@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sharipov</surname><given-names>Arseniy E.</given-names></name><name xml:lang="ru"><surname>Шарипов</surname><given-names>Арсений Елисеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>graduate student</p></bio><bio xml:lang="ru"><p>магистрант</p></bio><email>arsenyarseny36728@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shishkunova</surname><given-names>Mariya A.</given-names></name><name xml:lang="ru"><surname>Шишкунова</surname><given-names>Мария Андреевна</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>shishkunomashaa@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sementeeva</surname><given-names>Yuliya R.</given-names></name><name xml:lang="ru"><surname>Сементеева</surname><given-names>Юлия Рамилевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>graduate student</p></bio><bio xml:lang="ru"><p>магистрант</p></bio><email>yu.nuriewa@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Physics of Molecules and Crystals of Ufa Federal Research Center of RAS</institution></aff><aff><institution xml:lang="ru">Институт физики молекул и кристаллов Уфимского федерального исследовательского центра РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Ufa University of Science and Technology</institution></aff><aff><institution xml:lang="ru">Уфимский университет науки и технологий</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-03-29" publication-format="electronic"><day>29</day><month>03</month><year>2024</year></pub-date><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>9</fpage><lpage>17</lpage><history><date date-type="received" iso-8601-date="2024-03-28"><day>28</day><month>03</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Aksenov D.A., Fakhretdinova E.I., Asfandiyarov R.N., Raab A.G., Sharipov A.E., Shishkunova M.A., Sementeeva Y.R.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Аксенов Д.А., Фахретдинова Э.И., Асфандияров Р.Н., Рааб А.Г., Шарипов А.Е., Шишкунова М.А., Сементеева Ю.Р.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Aksenov D.A., Fakhretdinova E.I., Asfandiyarov R.N., Raab A.G., Sharipov A.E., Shishkunova M.A., Sementeeva Y.R.</copyright-holder><copyright-holder xml:lang="ru">Аксенов Д.А., Фахретдинова Э.И., Асфандияров Р.Н., Рааб А.Г., Шарипов А.Е., Шишкунова М.А., Сементеева Ю.Р.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://vektornaukitech.ru/jour/article/view/903">https://vektornaukitech.ru/jour/article/view/903</self-uri><abstract xml:lang="en"><p>Magnesium alloys are considered promising materials for the production of bioresorbable implants. Their main disadvantages are low strength and corrosion resistance in biological environment. In the work, the authors studied the effect of severe plastic deformation using the equal channel angular pressing (ECAP) method on the structure, mechanical properties, and corrosion resistance of the Mg–8.6Zn–1.2Zr magnesium alloy. It was identified that one ECAP cycle at 400 °C leads to a substantial hardening of the Mg–8.6Zn–1.2Zr alloy by ~10 %, up to 330 MPa. Structural studies showed that dynamic recrystallisation plays a significant role in the structure transformation. ECAP leads to the formation of a bimodal structure with large deformed grains with an average transverse size of 20±4 µm and recrystallised grains with an average transverse size of 6±2 µm. It was found that with a decrease in the strain temperature up to 250 °С, the process of deformation-induced decay of the supersaturated solid solution takes place. Electrical conductivity of a sample after ECAP at 400 °C amounted 29±2 % according to the International Annealed Copper Standard (IACS), while second ECAP cycles lead to an increase in the electrical conductivity up to 32±2 % IACS. Using the electrochemical corrosion method, the authors found that one ECAP cycle at 400 °C leads to a slight decrease in the corrosion resistance of the alloy under study compared to the initial state. The study showed that the corrosion current increases from 24 to 32 µA/cm<sup>2</sup>, while the subsequent ECAP cycle at 250 °С increases the corrosion current more than twice (up to 57 µA/cm<sup>2</sup>).</p></abstract><trans-abstract xml:lang="ru"><p>Магниевые сплавы считаются перспективными материалами для изготовления биорезорбируемых имплантатов. Их основные недостатки – низкая прочность и коррозионная стойкость в биологических средах. В работе изучалось влияние интенсивной пластической деформации методом равноканального углового прессования (РКУП) на структуру, механические свойства и коррозионную стойкость магниевого сплава Mg–8,6Zn–1,2Zr. Установлено, что 1 цикл РКУП при 400 °С ведет к заметному упрочнению сплава Mg–8,6Zn–1,2Zr на ~10 %, до 330 МПа. Структурные исследования показали, что в трансформации структуры существенную роль играет динамическая рекристаллизация. РКУП ведет к формированию структуры бимодального вида с крупными деформированными зернами со средним поперечным размером 20±4 мкм и рекристаллизованными зернами со средним поперечным размером 6±2 мкм. Установлено, что с понижением температуры деформации до 250 °С происходит процесс деформационно-индуцированного распада пересыщенного твердого раствора. Электропроводность образца после РКУП при 400 °С составляла 29±2 % согласно International Annealed Copper Standard (IACS), в то время как 2 цикла РКУП при 250 °С ведут к повышению электропроводности до 32±2 % IACS. Методом электрохимической коррозии установлено, что 1 цикл РКУП при 400 °С приводит к незначительному снижению коррозионной стойкости исследуемого сплава по сравнению с исходным состоянием. Показано, что ток коррозии увеличивается с 24 до 32 мкА/см<sup>2</sup>, в то время как последующий цикл РКУП при 250 °С увеличивает ток коррозии более чем в 2 раза (до 57 мкА/см<sup>2</sup>).</p></trans-abstract><kwd-group xml:lang="en"><kwd>Mg–Zn–Zr system alloys</kwd><kwd>Mg–8.6Zn–1.2Zr</kwd><kwd>magnesium alloys</kwd><kwd>high strength of magnesium alloys</kwd><kwd>ECAP</kwd><kwd>corrosion resistance</kwd><kwd>electrical conductivity</kwd><kwd>dynamic recrystallisation during ECAP</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>сплавы системы Mg–Zn–Zr</kwd><kwd>Mg–8,6Zn–1,2Zr</kwd><kwd>магниевые сплавы</kwd><kwd>высокая прочность магниевых сплавов</kwd><kwd>РКУП</kwd><kwd>коррозионная стойкость</kwd><kwd>электропроводность</kwd><kwd>динамическая рекристаллизация при РКУП</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was supported by the Russian Science Foundation (grant No. 22-79-10325, https://www.rscf.ru/project/22-79-10325/). The paper was written on the reports of the participants of the XI International School of Physical Materials Science (SPM-2023), Togliatti, September 11–15, 2023.</funding-statement><funding-statement xml:lang="ru">Работа выполнена при поддержке Российского научного фонда (грант № 22-79-10325, https://www.rscf.ru/project/22-79-10325/). Статья подготовлена по материалам докладов участников XI Международной школы «Физическое материаловедение» (ШФМ-2023), Тольятти, 11–15 сентября 2023 года.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Li N., Zheng Y. Novel Magnesium Alloys Developed for Biomedical Application: A Review. Journal of Materials Science and Technology, 2013, vol. 29, no. 6, pp. 489–502. DOI: 10.1016/j.jmst.2013.02.005.</mixed-citation><mixed-citation xml:lang="ru">Li N., Zheng Y. 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