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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">10.53360/2788-7995-2026-2(22)-64</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz44-2658</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>ТЕХНИЧЕСКАЯ ФИЗИКА И ТЕПЛОЭНЕРГЕТИКА</subject></subj-group></article-categories><title-group><article-title>ПОВЫШЕНИЕ ИЗНОСОСТОЙКОСТИ ПОДШИПНИКОВОЙ СТАЛИ ШХ15 МЕТОДОМ ПЛАЗМЕННОЙ ЗАКАЛКИ ПРИ РАЗЛИЧНЫХ РЕЖИМАХ ОБРАБОТКИ</article-title><trans-title-group xml:lang="en"><trans-title>IMPROVEMENT OF WEAR RESISTANCE OF BEARING STEEL SHKH15 BY PLASMA HARDENING UNDER DIFFERENT PROCESSING CONDITIONS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-1698-957X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Байжан</surname><given-names>Д. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Baizhan</surname><given-names>D. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>070002, Усть-Каменогорск, ул. Шакарима, 148;</p><p>071412, г. Семей, ул. Глинки, 20А</p></bio><bio xml:lang="en"><p>070002, Ust-Kamenogorsk, st. Shakarima 148;</p><p>071412, Semey, st. Glinka, 20A</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-4064-5368</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бердімуратов</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Berdimuratov</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>070002, Усть-Каменогорск, ул. Шакарима, 148</p></bio><bio xml:lang="en"><p>070002, Ust-Kamenogorsk, st. Shakarima 148</p></bio><email xlink:type="simple">Nurhat130820@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>Райсов</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Raisov</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>070002, Усть-Каменогорск, ул. Шакарима, 148</p></bio><bio xml:lang="en"><p>070002, Ust-Kamenogorsk, st. Shakarima 148</p></bio><email xlink:type="simple">2002raisov@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>Тлеубергенова</surname><given-names>Г. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Tleubergenova</surname><given-names>G. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>070002, Усть-Каменогорск, ул. Шакарима, 148</p></bio><bio xml:lang="en"><p>070002, Ust-Kamenogorsk, st. Shakarima 148</p></bio><email xlink:type="simple">gulh77848@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>Бимахан</surname><given-names>Н. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Bimakhan</surname><given-names>N. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>070002, Усть-Каменогорск, ул. Шакарима, 148</p></bio><bio xml:lang="en"><p>070002, Ust-Kamenogorsk, st. Shakarima 148</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сарсен Аманжолов Восточно-Казахстанский Университет;&#13;
Шәкәрім университет</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>Sarsen Amanzholov East Kazakhstan University;&#13;
Shakarim University</institution><country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Сарсен Аманжолов Восточно-Казахстанский Университет</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>Sarsen Amanzholov East Kazakhstan University</institution><country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>29</day><month>07</month><year>2026</year></pub-date><volume>0</volume><issue>2(22)</issue><fpage>606</fpage><lpage>613</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Байжан Д.Р., Бердімуратов Н.Е., Райсов Н.С., Тлеубергенова Г.Т., Бимахан Н.Т., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Байжан Д.Р., Бердімуратов Н.Е., Райсов Н.С., Тлеубергенова Г.Т., Бимахан Н.Т.</copyright-holder><copyright-holder xml:lang="en">Baizhan D.R., Berdimuratov N.E., Raisov N.S., Tleubergenova G.T., Bimakhan N.T.</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/2658">https://tech.vestnik.shakarim.kz/jour/article/view/2658</self-uri><abstract><p>В данной работе исследовано влияние плазменного упрочнения при различных условиях обработки на микроструктуру и трибологические свойства подшипниковой стали ШХ15. Показано, что плазменная обработка, основанная на локализованном высокоскоростном нагреве с последующей самозакалкой, обеспечивает формирование упрочнённого поверхностного слоя без применения жидких охлаждающих сред. Экспериментальные исследования проводились при варьировании тока плазменной дуги (120-140 А) и расхода плазмообразующего газа (0,2-0,25 л/мин). Полученные результаты показывают, что плазменная закалка приводит к формированию градиентной микроструктуры, состоящей из мартенсита, остаточного аустенита и перлита, с плавным переходом к исходной перлитной структуре. Максимальная микротвёрдость упрочнённого слоя достигает 700 HV при глубине до 250 мкм. Трибологические испытания по схеме «шарик-диск» показали, что после плазменной обработки коэффициент трения увеличивается, тогда как скорость износа снижается в 3-3,5 раза по сравнению с исходным состоянием. Полученные результаты свидетельствуют о значительном повышении износостойкости стали ШХ15 и подтверждают эффективность плазменного упрочнения как метода поверхностного упрочнения.</p></abstract><trans-abstract xml:lang="en"><p>This study investigates the effect of plasma hardening under different processing conditions on the microstructure and tribological properties of bearing steel ShKh15. It is shown that plasma treatment, based on localized high-speed heating followed by self-quenching, enables the formation of a hardened surface layer without the use of liquid cooling media. Experimental studies were carried out by varying the plasma arc current (120-140 A) and the flow rate of the plasma-forming gas (0.2-0.25 L/min).The results demonstrate that plasma hardening leads to the formation of a gradient microstructure consisting of martensite, retained austenite, and pearlite, with a smooth transition to the initial pearlitic structure. The maximum microhardness of the hardened layer reaches up to 700 HV with a depth of up to 250 μm. Tribological tests using a ball-on-disk configuration showed that after plasma treatment, the coefficient of friction increases, while the wear rate decreases by 3-3.5 times compared to the initial state. The obtained results indicate a significant improvement in the wear resistance of ShKh15 steel and confirm the effectiveness of plasma hardening as a surface strengthening method.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>плазменная закалка</kwd><kwd>сталь ШХ15</kwd><kwd>поверхностное упрочнение</kwd><kwd>износостойкость</kwd><kwd>трибологические свойства</kwd></kwd-group><kwd-group xml:lang="en"><kwd>plasma hardening</kwd><kwd>ShKh15 steel</kwd><kwd>surface hardening</kwd><kwd>wear resistance</kwd><kwd>tribological properties</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This research was funded by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan (Grant No. BR24992876).</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">Safonov E.N. Plasma hardening of machine parts / E.N. 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