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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">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2023-3-272-282</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2548</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>МЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGICAL TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Степень упрочнения и глубина наклепа при маятниковом поверхностном пластическом деформировании углеродистой стали</article-title><trans-title-group xml:lang="en"><trans-title>Degree and depth of hardening under pendulum surface plastic deformation of carbon 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>Зайдес</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaides</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Семен Азикович Зайдес, д.т.н., профессор кафедры материаловедения, сварочных и аддитивных технологий</p><p>Россия, 664074, Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Semen A. Zaides, Dr. Sci. (Eng.), Prof. of the Chair of Materials Science, Welding and Additive Technologies</p><p>83 Lermontova Str., Irkutsk 664074, Russian Federation</p></bio><email xlink:type="simple">zsa@istu.edu</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0488-0290</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куан</surname><given-names>Хо Минь</given-names></name><name name-style="western" xml:lang="en"><surname>Quan</surname><given-names>Ho Minh</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хо Минь Куан, аспирант кафедры материаловедения, сварочных и аддитивных технологий</p><p>Россия, 664074, Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Ho Minh Quan, Postgraduate of the Chair of Materials Science, Welding and Additive Technologies</p><p>83 Lermontova Str., Irkutsk 664074, Russian Federation</p></bio><email xlink:type="simple">minhquanho2605@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутский национальный исследовательский технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk National Research 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>28</day><month>06</month><year>2023</year></pub-date><volume>66</volume><issue>3</issue><fpage>272</fpage><lpage>282</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зайдес С.А., Куан Х.М., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Зайдес С.А., Куан Х.М.</copyright-holder><copyright-holder xml:lang="en">Zaides S.A., Quan H.M.</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://fermet.misis.ru/jour/article/view/2548">https://fermet.misis.ru/jour/article/view/2548</self-uri><abstract><p>В статье рассматривается влияние основных технологических параметров маятникового поверхностного пластического деформирования (ППД) на механические свойства поверхностного слоя цилиндрических деталей из углеродистой стали. С использованием твердомера HBRV-187,5 и микротвердомера HMV-G21 определены твердость поверхностного слоя, микротвердость и глубина наклепанного слоя упрочненных деталей. Представлены результаты по расчету степени упрочнения, которые являются важной информацией для оценки эффективности способа ППД с точки зрения улучшения механических свойств металла. Экспериментальные исследования показали, что после маятникового ППД (при разных режимах обработки) твердость поверхностного слоя повышается на 9 – 12 % по сравнению с твердостью исходной поверхности, а микротвердость возрастает в 1,5 – 1,7 раз, что приводит к значительному упрочнению поверхностного слоя цилиндрической заготовки. Глубина упроченного слоя варьируется в интервале 0,9 – 1,1 мм, при этом степень упрочнения составляет 45 – 65 %. С помощью программного пакета Statistica 10.1, позволяющего решать задачи оптимизации на основе статистического анализа, построена модель оптимизации и определены оптимальные режимы упрочнения при маятниковом ППД, обеспечивающие одновременно и максимальную глубину упрочненного слоя, и наибольшую степень упрочнения поверхностного слоя. Оптимальные режимы упрочнения формируются при следующих режимах обработки: радиальный натяг t = 0,15 ÷ 0,2 мм; продольная подача s = 0,07 ÷ 0,11 мм/об; частота вращения заготовки nз = 160 ÷ 200 мин−1; частота маятникового движения рабочего инструмента nин = 110 ÷ 130 дв.ход/мин; угловая амплитуда рабочего инструмента α = 35 ÷ 40°. По результатам экспериментальных данных и численных расчетов установлено, что средний размер зерен при маятниковом ППД уменьшается на 30 – 40 % по сравнению с исходным размером, а плотность дислокаций возрастает в 2,5 раза.</p></abstract><trans-abstract xml:lang="en"><p>The article discusses influence of the main technological parameters of pendulum surface plastic deformation (SPD) on the mechanical properties of surface layer of cylindrical parts made of carbon steel. Using the hardness tester HBRV-187.5 and the microhardness tester HMV-G21, we determined hardness of the surface layer, microhardness and depth of the work-hardened layer of hardened parts. In addition, the results of calculating the hardening degree are presented, which is important information for evaluating the effectiveness of SPD method in terms of improving the metal mechanical properties. Experimental studies showed that after pendulum SPD (at different processing modes), hardness of the surface layer increases by 9 – 12 % compared to hardness of the original surface, and the microhardness increases by 1.5 – 1.7 times, which leads to a significant hardening of the cylindrical billet surface layer. Depth of the hardened layer varies in the range of 0.9 – 1.1 mm, while the hardening degree is 45 – 65 %. Using the software package Statistica 10.1, which allows solving optimization problems based on statistical analysis and building an optimization model, we determined the optimal modes of hardening by pendulum SPD. These modes simultaneously provide both the maximum depth of the hardened layer and the highest hardening degree of the surface layer. They are formed under the following processing modes: radial interference t = 0.15 – 0.2 mm; longitudinal feed s = 0.07 – 0.11 mm/rev; billet rotation frequency nb = 160 – 200 min−1; frequency of the working tool pendulum movement nt = 110 – 130 strokes/min; angular amplitude of the working tool α = 35 – 40°. According to the results of experimental data and numerical calculations, it was established that the average grain size in pendulum SPD decreases by 30 – 40 % compared to the initial size, and the dislocation density increases by 2.5 times.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>углеродистая сталь</kwd><kwd>степень упрочнения</kwd><kwd>глубина наклепа</kwd><kwd>поверхностное пластическое деформирование</kwd><kwd>твердость</kwd><kwd>микротвердость</kwd><kwd>режимы обработки</kwd><kwd>поверхностный слой</kwd><kwd>статистический расчет</kwd></kwd-group><kwd-group xml:lang="en"><kwd>carbon steel</kwd><kwd>hardening degree</kwd><kwd>hardening depth</kwd><kwd>surface plastic deformation</kwd><kwd>hardness</kwd><kwd>microhardness</kwd><kwd>processing mode</kwd><kwd>surface layer</kwd><kwd>statistical calculation</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">Laouar L., Hamadache H., Saad S., Bouchelaghem A., Mekhi­lef S. 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