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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">10.17073/0368-0797-2015-4-284-286</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-657</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>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SHORT REPORTS</subject></subj-group></article-categories><title-group><article-title>ОПРЕДЕЛЕНИЕ МИКРОТВЕРДОСТИ МНОГОСЛОЙНОГО МЕТАЛЛИЧЕСКОГО МАТЕРИАЛА, ПОЛУЧЕННОГО МЕТОДОМ ЭЛЕКТРОШЛАКОВОГО ПЕРЕПЛАВА</article-title><trans-title-group xml:lang="en"><trans-title>DETERMINATION OF MICROHARDNESS MULTILAYER METAL MATERIAL OBTAINED BY ELECTROSLAG REMELTING</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>Чуманов</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chumanov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н, заведующий кафедрой общей металлургии</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Professor, Head of the Chair “General Metallurgy”</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>Матвеева</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Matveeva</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры общей металлургии</p></bio><bio xml:lang="en"><p>Postgraduate of the Chair “General Metallurgy”</p></bio><email xlink:type="simple">26mist26@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Южно-Уральский государственный университет (филиал в г. Златоусте) 456200, Россия, Челябинская обл., г. Златоуст, ул. Тургенева, 16</institution><country>Россия</country></aff><aff xml:lang="en"><institution>South Ural State University (Zlatoust branch) 16, Turgeneva str., Zlatoust, Chelyabinsk region, 456200, Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>10</day><month>06</month><year>2015</year></pub-date><volume>58</volume><issue>4</issue><fpage>284</fpage><lpage>286</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чуманов И.В., Матвеева М.А., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Чуманов И.В., Матвеева М.А.</copyright-holder><copyright-holder xml:lang="en">Chumanov I.V., Matveeva M.A.</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/657">https://fermet.misis.ru/jour/article/view/657</self-uri><abstract><p>Получение многослойной заготовки возможно с помощью применения электрошлаковой технологии, которая весьма вариативна и позволяет различными способами воздействовать на структуру получаемой отливки. По предлагаемой технологии формирование слоев нового состава осуществляли подачей, с заданной периодичностью, в жидкометаллическую ванну углеродосодержащего материала конкретной массы. Проведен ряд механических испытаний, в частности, – определение микротвердости полученного материала. Измерение микротвердости при металлографических исследованиях позволяет получить результаты, едостижимые при макроскопических механических испытаниях. Например, выявить картину изменения значения твердости в многослойной металлической композиции. Микротвердость материала с большим количеством присадки выше, чем с меньшей массой присадки-науглероживателя; на поперечных образцах микротвердость выше, чем на продольных; образцы, подвергнутые более глубокой степени деформации и термической обработке по режимам отжиг и отжиг + закалка, показывают микротвердость почти в 2 раза выше. Глубокая степень деформации приводит к размытию в структуре материала слоев и обозначает максимальную степень деформации материала, при котором сохраняется многослойная структура.</p></abstract><trans-abstract xml:lang="en"><p>The multilayer preform production is possible with the use ofelectroslag technology that is highly variable and allows to varify theinfl uence ways to the structure of the resulting casting. According tothe proposed technology the forming of layers with new compositionwas made by supply of carbonaceous material with specifi c weight into the liquid-metal bath at specifi ed intervals. In order to determine the changes caused by the introduction of additives, a series of mechanical tests were conducted, in particular – the defi nition of microhardness of the resulting material. Metallographic studies of microhardness with yield results that are not possible in macroscopic mechanical tests. For example, it can be used to identify the pattern of change of hardness values in a multi-metal composition. Analysis of the data allows to conclude: microhardness of the material, with a lot of additives is higher than with a smaller mass-carburizers additives; on transverse specimens – microhardness is higher than longitudinal; samples were subjected to a deeper degree of deformation and heat treatment and annealing conditions for annealing hardening + microhardness results show values almost two times higher. Also worth mentioning - profounddegree of deformation leads to a smearing of the material layersin the structure, and defi nes the maximum degree of deformation of the material in which the multilayer structure is preserved.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электрошлаковый переплав</kwd><kwd>слоистая структура</kwd><kwd>микроструктура</kwd><kwd>макроструктура</kwd><kwd>микротвердость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>electroslag remelting</kwd><kwd>layered structure</kwd><kwd>microstructure</kwd><kwd>macrostructure</kwd><kwd>microhardness</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">Verhoven J.D. Pattern formation in wootz, damascus steel sword and blades. Indian Journal of History of Science. 2004, no. 42 (4), pp. 559–579.</mixed-citation><mixed-citation xml:lang="en">Verhoven J.D. 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