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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">powder</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Порошковая металлургия и функциональные покрытия</journal-title><trans-title-group xml:lang="en"><trans-title>Powder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-308X</issn><issn pub-type="epub">2412-8767</issn><publisher><publisher-name>НИТУ "МИСИС"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/1997-308X-2016-2-63-70</article-id><article-id custom-type="elpub" pub-id-type="custom">powder-207</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>Наноструктурированные материалы и функциональные покрытия</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Nanostructured Materials and Functional Coatings</subject></subj-group></article-categories><title-group><article-title>Электроискровые покрытия из аморфного и нанокристаллического сплавов на основе железа</article-title><trans-title-group xml:lang="en"><trans-title>Electrospark coatings of amorphous and nanocrystalline iron-based alloys</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>Кузнецов</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsov</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. техн. наук, ст. преподаватель кафедры «Надежность и ремонт машин»</p><p>302019, г. Орел, ул. Генерала Родина, 69, ауд. 2-205</p></bio><bio xml:lang="en"><p>Ph.D. (Eng), Senior Teacher of the Department «Reliability and repair of cars»,</p><p>302019, Orel, Gen. Rodina str., 69</p></bio><email xlink:type="simple">ivan-654@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Орловский государственный аграрный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Orel State Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>19</day><month>06</month><year>2016</year></pub-date><volume>0</volume><issue>2</issue><fpage>63</fpage><lpage>70</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; НИТУ "МИСИС", 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">НИТУ "МИСИС"</copyright-holder><copyright-holder xml:lang="en">НИТУ "МИСИС"</copyright-holder><license xlink:href="https://powder.misis.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://powder.misis.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://powder.misis.ru/jour/article/view/207">https://powder.misis.ru/jour/article/view/207</self-uri><abstract><p>Представлены результаты исследований износостойких электроискровых покрытий (ЭИП), полученных электроискровой обработкой стальной подложки. В качестве электродных материалов использовались аморфный сплав марки 2НСР (Fe78B12Si9Ni1) и нанокристаллический сплав 5БДСР (Fe78,5Si13,5B9Nb3Cu1), имеющие в основе железо. Анализ структуры ЭИП с использованием сканирующей электронной микроскопии и рентгеновского излучения показал, что покрытие из сплава 2НСР в целом аморфно, а покрытие из сплава 5БДСР имеет нанокристаллическую структуру, представляющую собой аморфную матрицу с нанокристаллами α-Fe. Микротвердость ЭИП из сплава 2НСР составила 7279 МПа при толщине 30 мкм, а из 5БДСР – 10147 МПа при толщине 33 мкм, что примерно в 1,5 раза больше толщины ЭИП из сплава ВК6-ОМ. Триботехнические испытания показали, что на стадии установившегося изнашивания износостойкость ЭИП из сплава 2HCP в 4 раза выше, чем у покрытий из 5БДСР, однако на стадии приработки его скорость изнашивания в 1,3 раза больше. В ходе эксплуатационных испытаний установлено, что покрытие из нанокристаллического сплава 5БДСР позволяет повысить ресурс режущих деталей машин, работающих в условиях абразивного изнашивания, не менее чем в 1,4 раза.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the results of the study covering wear resistant electrospark coatings (ESC) made with electrospark deposition of a steel substrate. The iron based amorphous alloy 2NSR (Fe78B12Si9Ni1) and nanocrystalline alloy 5BDSR (Fe78,5Si13,5B9Nb3Cu1) were used as electrode materials. The ESC structure analysis with scanning electron microscopy and X-rays determined that the 2NSR alloy coating is generally amorphous, while the 5BDSR alloy coating has a nanocrystalline structure that is an amorphous matrix with nanocrystals α-Fe. The microhardness of 2NSR alloy electrospark coating was 7279 MPa at a thickness of 30 microns, and 5BDSR — 10147 MPa at a thickness of 33 microns, that is about 1.5 times thicker than the VK6-OM alloy coating. Tribotechnical tests revealed that the 2NSR alloy electrospark coating has wear resistance 4 times higher than that of 5BDSR at the stage of steady wearing. However, its wear rate was 1,3 times higher at the stage of running. Performance tests found that the coating made of 5BDSR nanocrystalline alloy extends the life cycle of cutting machine parts running in abrasive wear conditions by at least 1,4 times.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электроискровая обработка</kwd><kwd>электроискровое покрытие</kwd><kwd>аморфный сплав</kwd><kwd>нанокристаллический сплав</kwd><kwd>микротвердость</kwd><kwd>износостойкость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>electrospark deposition</kwd><kwd>electrospark сoating</kwd><kwd>amorphous alloy</kwd><kwd>nanocrystalline alloy</kwd><kwd>microhardness</kwd><kwd>wear resistance</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">Zamulaeva E.I., Levashov E.A., Kudryashov A.E. Effect of WC—CO electrode structure on the rate of electrospark coating deposition // Metallurgist. 2012. Vol. 55. No. 9-10. 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