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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">fwj</journal-id><journal-title-group><journal-title xml:lang="ru">Трение и и износ</journal-title><trans-title-group xml:lang="en"><trans-title>Title in english</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0000-0000</issn><issn pub-type="epub">0000-0000</issn><publisher><publisher-name>AGU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32864/0202-4977-2026-47-1-16-26</article-id><article-id custom-type="elpub" pub-id-type="custom">fwj-109</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Сравнительные результаты триботехнических испытаний роликов для маятниковой мельницы из износостойкого чугуна ИЧХ28Н2 и стали ШХ15СГ</article-title><trans-title-group xml:lang="en"><trans-title>Comparative Results of Tribotechnical Tests of Rollers for Pendulum Mill Made of Wear-Resistant Cast Iron IChX28H2 and Steel SHKH15SG</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>Разетдинова</surname><given-names>Л.Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Razetdinova</surname><given-names>L. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Политехническая, д. 29 литера Б, вн. тер. г. муниципальный округ Академическое, г. Санкт-Петербург 195251</p></bio><bio xml:lang="en"><p>Polytechnicheskaya str., 29, St. Petersburg 195251</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Скотникова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Skotnikova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Политехническая, д. 29 литера Б, вн. тер. г. муниципальный округ Академическое, г. Санкт-Петербург 195251</p></bio><bio xml:lang="en"><p>Polytechnicheskaya str., 29, St. Petersburg 195251</p></bio><email xlink:type="simple">skotnikova@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>Иванова</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Политехническая, д. 29 литера Б, вн. тер. г. муниципальный округ Академическое, г. Санкт-Петербург 195251</p></bio><bio xml:lang="en"><p>Polytechnicheskaya str., 29, St. Petersburg 195251</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куома</surname><given-names>Е. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuoma</surname><given-names>E. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Политехническая, д. 29 литера Б, вн. тер. г. муниципальный округ Академическое, г. Санкт-Петербург 195251</p></bio><bio xml:lang="en"><p>Polytechnicheskaya str., 29, St. Petersburg 195251</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский политехнический университет Петра Великого</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peter the Great St. Petersburg Polytechnic University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>30</day><month>09</month><year>2026</year></pub-date><volume>47</volume><issue>1</issue><fpage>16</fpage><lpage>26</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; AGU, 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">AGU</copyright-holder><copyright-holder xml:lang="en">AGU</copyright-holder><license xlink:href="https://fwj.ejournal.by/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://fwj.ejournal.by/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://fwj.ejournal.by/jour/article/view/109">https://fwj.ejournal.by/jour/article/view/109</self-uri><abstract><p>Цель работы — сравнение триботехнических характеристик промышленных рабочих роликов из стали ШХ15СГ (до и после эксплуатации) и из чугуна ИЧХ28Н2 (до эксплуатации) для выбора материала роликов и увеличения срока службы маятниковых мельниц.</p><p>Металлографические исследования выполнены на оптических микроскопах IM7000 с анализатором изображения Thixomet и микровизоре µVizo-MET. Измерения микротвердости проведены в автоматическом режиме по методу Виккерса при нагрузке 50 г по всему сечению промышленных роликов. Триботехнические испытания выполнены на машине трения СМЦ-2 по схеме «ролик — абразивный ролик» оценивая коэффициент трения, износ и шероховатость поверхности.</p><p>Установлено, что сталь ШХ15СГ в исходном состоянии имела однородную структуру низкоотпущенного мартенсита с карбидной неоднородностью из (Cr,Fe)3C (HV 828) со средней твёрдостью HV 630. После 3-х месяцев эксплуатации под действием разупрочняющих процессов (температуры и пластической деформации) в подповерхностных слоях проходила трансформация мартенсита в троостит отпуска, образование полос с мартенситной и мартенситно-трооститной структурой со средней твёрдостью HV 443, что в 1,5 раза меньше, по сравнению с твёрдостью (HV 630) в исходном состоянии.</p><p>Чугун ИЧХ28Н2 имел структуру белого доэвтектического чугуна, состоящую из легированного аустенита (670—750 HV), карбидов цементитного типа (Cr,Fe)3C (856 HV) и специальных карбидов (Cr,Fe)7C3 (1389 HV) и (Cr,Fe)23C6 (1750 HV). Средняя твёрдость чугуна HV 781, что в 1,2 раза выше твёрдости стали в исходном состоянии. Также чугун обладает, по сравнению со сталью, более низким коэффициентом трения (0,58 против 0,68—0,85), в 1,7 раза меньшим износом (214 мг против 358 мг) и способностью к приработке при трении (снижение шероховатости Ra в 3,7 раза). Таким образом, чугун ИЧХ28Н2 рекомендован в качестве материала для роликов маятниковых мельниц, работающих в условиях интенсивного абразивного износа.</p></abstract><trans-abstract xml:lang="en"><p>The purpose of the work is to compare the tribotechnical properties of industrial working rollers made of steel SHKH15SG (before and after operation) and cast iron IChX28H2 (before operation) to select the material of the rollers and increase the service life of pendulum mills.</p><p>Metallographic studies were performed on IM7000 optical microscopes with a Thixomet image analyzer and a microvizo-MET microimage. Microhardness measurements were carried out automatically using the Vickers method at a load of 50 g over the entire cross-section of industrial rollers. Tribotechnical tests were performed on a SMC-2 friction machine according to the “roller — abrasive roller” scheme (rotation speed 500 rpm, load 45 N, test time 2 hours) with an assessment of the coefficient of friction, wear and surface roughness.</p><p>It was found that steel SHX15SG in its initial state had a homogeneous structure of low-pressure marten-site with a carbide heterogeneity of (Cr,Fe)3C (HV 828) with an average hardness of HV 630. After 3 months of operation, under the influence of softening processes (temperature and plastic deformation), martensite was transformed into tempering troostite in the subsurface layers, and bands with martensitic and martensitictroostite structures were formed with an average hardness of HV 443, which is 1.5 times less than the hardness (HV 630) in the initial state. Internal arc-shaped cracks were found.</p><p>The IChX28H2 cast iron had a white pre-eutectic cast iron structure consisting of alloyed austenite (670—750 HV), cementite type carbides (Cr,Fe)3C (856 HV) and special carbides (Cr,Fe)7C3 (1389 HV) and (Cr,Fe)23C6 (1389 HV). The average hardness of cast iron was HV 781, which is 1.2 times higher than the hardness of steel in its initial state. Tribotechnical tests have shown that cast iron had a lower coefficient of friction (0.58 versus 0.68—0.85 for steel), 1.7 times less wear (214 mg versus 358 mg for steel) and the ability to run in under friction (reducing the roughness of Ra by 3.7 times). Based on the structural characteristics, hardness and tribotechnical properties, wear-resistant cast iron IChX28H2 is recommended as a material for the manufacture of rollers of pendulum mills operating under conditions of intense abrasive wear, which will increase their service life.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>рабочие ролики маятниковой мельницы</kwd><kwd>сталь ШХ15СГ</kwd><kwd>чугун ИЧХ28Н2</kwd><kwd>структура</kwd><kwd>микротвердость</kwd><kwd>трение</kwd><kwd>износ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>working rollers of a pendulum mill</kwd><kwd>steel SHKH15SG</kwd><kwd>cast iron IChX28H2</kwd><kwd>structure</kwd><kwd>microhardness</kwd><kwd>friction</kwd><kwd>wear</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">Guitar M. Agustina, Nayak U. Pranav, Britz Dominik and Mu ̈cklich Frank. 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