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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">10.17073/0368-0797-2024-6-710-715</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2816</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>МАТЕРИАЛОВЕДЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATERIAL SCIENCE</subject></subj-group></article-categories><title-group><article-title>Структура и свойства покрытий, полученных способом газотермического напыления</article-title><trans-title-group xml:lang="en"><trans-title>Structure and properties of coatings obtained by gas-thermal spraying</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2839-5249</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колубаев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolubaev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Викторович Колубаев, д.ф.-м.н., главный научный сотрудник</p><p>Россия, 634055, Томск, пр. Академичес­кий, 2/4</p></bio><bio xml:lang="en"><p>Aleksandr V. Kolubaev, Dr. Sci. (Phys.-Math.), Chief Researcher</p><p>2/4 Akademiches­kii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">ovs@ispms.tsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9177-6602</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сизова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sizova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Владимировна Сизова, д.ф.-м.н., главный научный сотрудник</p><p>Россия, 634055, Томск, пр. Академичес­кий, 2/4</p></bio><bio xml:lang="en"><p>Ol’ga V. Sizova, Dr. Sci. (Phys.-Math.), Chief Researcher</p><p>2/4 Akademiches­kii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">ovs@ispms.tsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физики прочности и материаловедения Сибирского отделения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>14</day><month>12</month><year>2024</year></pub-date><volume>67</volume><issue>6</issue><fpage>710</fpage><lpage>715</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Колубаев А.В., Сизова О.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Колубаев А.В., Сизова О.В.</copyright-holder><copyright-holder xml:lang="en">Kolubaev A.V., Sizova O.V.</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/2816">https://fermet.misis.ru/jour/article/view/2816</self-uri><abstract><p>В работе исследовались микроструктура и механические свойства износостойких покрытий, нанесенных способом газотермического напыления с нагревом металла до жидкого состояния и последующим его распылением газовой струей. Газотермическое напыление в настоящее время все чаще выступает альтернативой различным методам наплавки из-за высоких затрат на расхо­дуемые материалы, сложность обслуживания и обеспечения безопасности при выполнении ремонта. С помощью этого способа можно надежно решать разнообразные технологические задачи, к которым относятся: напыление износостойких, антифрикционных и коррозионностойких покрытий; алитирование напылением (повышение жаростойкости); наращивание размеров изделий; наплавка и пайка; устранение литейных дефектов; изготовление пресс-форм и др. Авторы исследовали триботехнические свойства штока виброгасителя железнодорожного вагона с нанесенными на рабочую поверхность упрочняющих поверхностных слоев способами газотермического напыления стали 40Х13 и гальванического хромирования. Изучали строение и толщину покрытий, распределение микротвердости в зоне покрытие – подложка, а также особенности разрушения покрытий при одинаковых условиях испытаний. Критерием для сравнения износостойкости покрытий является время работы образцов до начала разрушения покрытия. Износ роликов определялся по изменению диаметра, а колодок – по глубине и ширине канавок, образовавшихся на их поверхности за время проведения эксперимента. Покрытие, нанесенное на шток виброгасителя распылением проволоки из стали 40Х13, обладает высокой износостойкостью в условиях граничного трения со смазкой и способно быть альтернативой гальваническому хромовому покрытию. Высокая износостойкость покрытия позволяет рекомендовать его для восстановления размеров изношенных деталей и повышения долговечности новых, а также для замены специальных антифрикционных подшипниковых сплавов.</p></abstract><trans-abstract xml:lang="en"><p>The authors investigated the microstructure and mechanical properties of wear-resistant coatings applied by the method of gas-thermal spraying with heating of the metal to a liquid state and its subsequent spraying with a gas jet. Nowadays, thermal spraying is increasingly an alternative to various methods of surfacing due to the high costs of consumables, the complexity of maintenance and safety during repairs. By this method, it is possible to reliably solve a variety of technological tasks, which include spraying of wear-resistant, antifriction and corrosion-resistant coatings; alitizing by spraying (increasing heat resistance); increasing the size of products; surfacing and soldering; elimination of casting defects; manufacture of molds, etc. The tribotechnical properties of the vibration damper rod of a railway carriage with reinforcing surface layers applied to the working surface by methods of gas-thermal spraying with 40Kh13 steel and galvanic chromium plating were investigated. Structure and thickness of the coatings, microhardness distribution in the coating-substrate zone, as well as the features of the coatings destruction under the same test conditions were studied. The criterion for comparing the coatings’ wear resistance was the operating time of the samples before the beginning of the coating destruction. Wear of the rollers was determined by the change in diameter, and wear of the pads – by the depth and width of the grooves formed on their surface during the experiment. The coating applied to the vibration damper rod by spraying 40Kh13 steel wire has high wear resistance in conditions of boundary friction with grease and can be an alternative to electroplated chrome coating. The high wear resistance of the coating makes it possible to recommend it for restoring the dimensions of worn parts and increasing the durability of new ones, as well as for replacing special anti-friction bearing alloys.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>конструкционная сталь</kwd><kwd>размерный дефект</kwd><kwd>износостойкое покрытие</kwd><kwd>газотермическое напыление</kwd><kwd>триботехнические свойст­ва</kwd><kwd>трение скольжения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>structural steel</kwd><kwd>dimensional defect</kwd><kwd>wear-resistant coating</kwd><kwd>thermal spraying</kwd><kwd>tribotechnical properties</kwd><kwd>sliding friction</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Института физики прочности и материаловедения Сибирского отделения РАН, номер темы FWRW 2021-0006.</funding-statement><funding-statement xml:lang="en">The work was performed within the framework of the state assignment of the Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, project No. FWRW 2021-0006.</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">Белоцерковский М.А. 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