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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">kaz44</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Университета Шакарима. Серия технические науки</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Shakarim University. Technical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2788-7995</issn><issn pub-type="epub">3006-0524</issn><publisher><publisher-name>«Шәкәрім университеті» КеАҚ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.53360/2788-7995-2025-2(18)-64</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz44-1681</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>ХИМИЧЕСКАЯ ТЕХНОЛОГИЯ (ОРИГИНАЛЬНАЯ СТАТЬЯ)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMICAL TECHNOLOGY (ORIGINAL ARTICLE)</subject></subj-group></article-categories><title-group><article-title>ИССЛЕДОВАНИЕ ВЛИЯНИЯ ПРОДОЛЖИТЕЛЬНОСТИ НАГРЕВА ПРИ ЭЛЕКТРОЛИТНО-ПЛАЗМЕННОЙ ЗАКАЛКЕ НА ХАРАКТЕРИСТИКИ СТАЛИ 20ГЛ</article-title><trans-title-group xml:lang="en"><trans-title>STUDY OF THE INFLUENCE OF HEATING DURATION DURING ELECTROLYTIC-PLASMA HARDENING ON THE CHARACTERISTICS OF 20GL STEEL</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>Рахадилов</surname><given-names>Б. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Rakhadilov</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бауржан Рахадилов – PhD, Проректор по научной работе Восточно-Казахстанского университета им. С. Аманжолова, </p><p>070000, г. Усть-Каменогорск</p></bio><bio xml:lang="en"><p>Bauyrzhan Rakhadilov – PhD, Vice-rector on scientific work,</p><p>Ust-Kamenogorsk 070000</p></bio><email xlink:type="simple">rakhadilovb@mail.ru</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>Шаяхметов</surname><given-names>Е. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Shayakhmetov</surname><given-names>E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ержан Шаяхметов – старший преподаватель кафедры технологического оборудования,</p><p>071412, г. Семей</p></bio><bio xml:lang="en"><p>Erzhan Shayakhmetov – Senior Lecturer of the Department of Technological Equipment,</p><p>Semey 071412</p></bio><email xlink:type="simple">shaiakhmeterzh@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бақыт</surname><given-names>Ж. Ә.</given-names></name><name name-style="western" xml:lang="en"><surname>Bakyt</surname><given-names>Zh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жанель Бақыт – младший научный сотрудник Инжинирингового центра «Упрочняющие технологии и покрытия», </p><p>071412, г. Семей</p></bio><bio xml:lang="en"><p>Zhanel Bakyt – junior researcher of Engineering Center “Strengthening Technologies and Coatings»,</p><p>Semey 071412</p></bio><email xlink:type="simple">bakytzhanel@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Буреш</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Buresh</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Буреш – магистрант группы МТО-301,</p><p>071412, г. Семей</p></bio><bio xml:lang="en"><p>Sergei Buresh – master’s student of the MTO-301 group,</p><p>Semey 071412</p></bio><email xlink:type="simple">buresh2002@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мусатаева</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Musataeva</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Назира Мусатаева – студентка группы Ф-302, </p><p>071412, г. Семей</p></bio><bio xml:lang="en"><p>Nazira Musataeva – student of the F-302 group,</p><p>Semey 071412</p></bio><email xlink:type="simple">naziramusataeva51@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ТОО «Plasma Science»<country>Казахстан</country></aff><aff xml:lang="en">Plasma Science LLP<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Инжиниринговый центр «Упрочняющие технологий и покрытия», Шәкәрім университет<country>Казахстан</country></aff><aff xml:lang="en">Engineering Center «Strengthening Technologies and Coatings», Shakarim University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>08</day><month>07</month><year>2025</year></pub-date><volume>0</volume><issue>2(18)</issue><fpage>546</fpage><lpage>554</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Рахадилов Б.К., Шаяхметов Е.Я., Бақыт Ж.Ә., Буреш С.И., Мусатаева Н.Е., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Рахадилов Б.К., Шаяхметов Е.Я., Бақыт Ж.Ә., Буреш С.И., Мусатаева Н.Е.</copyright-holder><copyright-holder xml:lang="en">Rakhadilov B., Shayakhmetov E., Bakyt Z., Buresh S., Musataeva N.</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://tech.vestnik.shakarim.kz/jour/article/view/1681">https://tech.vestnik.shakarim.kz/jour/article/view/1681</self-uri><abstract><p>В данной статье представлено комплексное исследование процесса электролитноплазменной закалки (ЭПЗ), применяемого к конструкционной стали 20GL, материалу, часто используемому в автомобильной, транспортной и различных других отраслях промышленности. Акутальностью данного исследования является необходимость повышения эксплуатационных характеристик сталей, которые подвергаются высоким механическим нагрузкам, повышенным температурам и коррозионным средам. Экспериментальные данные показывают, что электролитно-плазменная обработка существенно повышает твердость стали 20ГЛ в среднем примерно до 600HV. Кроме того, увеличение продолжительности нагрева значительно способствует повышению твердости, играя решающую роль в повышении износостойкости под нагрузкой. Микроструктурный анализ подтверждает образование мелкозернистой мартенситной фазы, подчеркивая трансформацию и упрочнение стали. Кроме того, в исследовании подчеркивается, что химический состав стали 20ГЛ влияет на градиент твердости от поверхности внутрь и приводит к развитию более мелкозернистых особенностей в микроструктуре стали. В целом электролитно-плазменный процесс оказывается полезным не только для улучшения механических характеристик, но и для повышения надежности и срока службы критических компонентов. С промышленной точки зрения эта технология отличается своей адаптивностью и экономической эффективностью, что делает ее привлекательным решением для таких секторов, как автомобилестроение, строительство и энергетическая промышленность. Таким образом, электролитно-плазменное упрочнение становится перспективным методом, соответствующим современным инженерным требованиям, предлагая многообещающий путь для усовершенствованной оптимизации материалов.</p></abstract><trans-abstract xml:lang="en"><p>This article presents a comprehensive examination of the electrolytic-plasma hardening (EPH) process applied to 20GL structural steel, a material frequently used in the automotive, transport, and various other industries. The relevance behind this research lies in the necessity to enhance the performance of steels that face high mechanical loads, elevated temperatures, and corrosive environments. Experimental findings reveal that electrolytic-plasma treatment substantially increases the hardness of 20GL steel to approximately 600 HV on average. Additionally, prolonging the heating duration contributes significantly to greater hardness, playing a decisive role in bolstering wear resistance under load. Microstructural analysis confirms the formation of a fine-grained martensitic phase, highlighting the steel’s transformation and strengthening. Furthermore, the study emphasizes that the chemical composition of 20GL steel influences the hardness gradient from the surface inward and leads to the development of finer-grained features in the steel’s microstructure. Overall, the electrolytic-plasma process proves beneficial not only for improving mechanical attributes but also for enhancing reliability and service life of critical components. From an industrial standpoint, this technology is notable for its adaptability and cost-effectiveness, making it an attractive solution for sectors such as automotive manufacturing, construction, and the energy industry. Thus, electrolytic-plasma hardening emerges as a forward-looking method aligned with modern engineering demands, offering a promising avenue for advanced material optimization.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электролитно-плазменное упрочнение</kwd><kwd>сталь 20ГЛ</kwd><kwd>твердость</kwd><kwd>износостойкость</kwd><kwd>коррозионная стойкость стали</kwd></kwd-group><kwd-group xml:lang="en"><kwd>electrolytic plasma hardening</kwd><kwd>20GL steel</kwd><kwd>hardness</kwd><kwd>wear resistance</kwd><kwd>corrosion resistance of steel</kwd></kwd-group><funding-group xml:lang="en"><funding-statement>This research was funded by the Committee of Science of the Ministry of Science and Higher Education of the Republic of Kazakhstan (Grant No. AP19680287).</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">Tursunov N.K. 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