<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">10.17073/0368-0797-2015-3-214-215</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-644</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>ФОРМИРОВАНИЕ КОМПОЗИЦИОННОГО БОРИДНОГО ПОКРЫТИЯ НА СТАЛИ ПРИ МИКРОДУГОВОЙ ХИМИКО-ТЕРМИЧЕСКОЙ ОБРАБОТКЕ</article-title><trans-title-group xml:lang="en"><trans-title>FORMATION OF COMPOSITE BORIDE COATING ON STEEL AT MICROARC THERMOCHEMICAL TREATMENT</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>Домбровский</surname><given-names>Ю. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Dombrovskii</surname><given-names>Yu. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Professor</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>Степанов</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Stepanov</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor</p></bio><email xlink:type="simple">stepanovms@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Донской государственный технический университет 344010, Россия, Ростов-на-Дону, пл. Гагарина, 1</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Don State Technical University 1, Gagarina sqr., Rostov-on-Don, 344010, 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>3</issue><fpage>214</fpage><lpage>215</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Домбровский Ю.М., Степанов М.С., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Домбровский Ю.М., Степанов М.С.</copyright-holder><copyright-holder xml:lang="en">Dombrovskii Y.M., Stepanov M.S.</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/644">https://fermet.misis.ru/jour/article/view/644</self-uri><abstract><p>Повышение пластичности стальных изделий после диффузионного борирования достигнуто с помощью формирования композиционной гетерогенной структуры в поверхностном слое. Борирование осуществляли с помощью микродугового нагрева. На поверхность изделия из низкоуглеродистой стали наносили обмазку, содержащую борную кислоту, затем изделие погружали в порошок каменного угля и нагревали электрическим током. В результате обработки образовалось композиционное покрытие толщиной 0,2 мм, состоящее из областей высокодисперсной эвтектоидной смеси с микротвердостью 4500 – 4700 МПа и боридной эвтектики с микротвердостью 15,0 – 17,0 ГПа. Под композиционным слоем расположена науглероженная зона с эвтектоидной структурой, переходящая в исходную феррито-перлитную структуру.</p></abstract><trans-abstract xml:lang="en"><p>Plasticity increase of steel products after diffusion boriding was achieved by the formation of the composite heterogeneous structures in the surface layer. Boriding was carried out by microarc heating. Coating was applied on the surface of the item of low carbon steel containing boric acid. Then it was plunged into coal powder and was heated by electric current. Composite coating with the depth of 0.2 mm was formed as a result of treatment. It consists of the areas of eutectoid mixture with microhardness of 4500 – 4700 MPa and boride eutectic with microhardness of 15.0 – 17.0 HPa. The carburized area with eutectoid structure was formed under the composite layer. It passed to the original ferritepearlite structure.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>поверхностное упрочнение</kwd><kwd>химико-термическая обработка</kwd><kwd>диффузионное борирование</kwd><kwd>микродуговой нагрев</kwd></kwd-group><kwd-group xml:lang="en"><kwd>surface hardening</kwd><kwd>thermochemical treatment</kwd><kwd>diffusion boriding</kwd><kwd>microarc heating</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">Voroshnin L.G., Mendeleeva O.L., Smetkin V.A. Teoriya i tekhnologiya khimiko-termicheskoi obrabotki [Theory and technology of thermochemical treatment]. Moscow: Novoe znanie, 2010. 304 p. (In Russ.).</mixed-citation><mixed-citation xml:lang="en">Voroshnin L.G., Mendeleeva O.L., Smetkin V.A. Teoriya i tekhnologiya khimiko-termicheskoi obrabotki [Theory and technology of thermochemical treatment]. Moscow: Novoe znanie, 2010. 304 p. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Krukovich M.G., Prusakov B.A., Sizov I.G. Plastichnost’ borirovannykh sloev [Plasticity of borated layers]. Moscow: FIZMATLIT, 2010. 384 p. (In Russ.).</mixed-citation><mixed-citation xml:lang="en">Krukovich M.G., Prusakov B.A., Sizov I.G. Plastichnost’ borirovannykh sloev [Plasticity of borated layers]. Moscow: FIZMATLIT, 2010. 384 p. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Dombrovskii Yu.M., Stepanov M.S. Microarc cementation of steel items in powder medium. Uprochnyayushchie tekhnologii i pokrytiya. 2013, no. 12, pp. 25–29. (In Russ.).</mixed-citation><mixed-citation xml:lang="en">Dombrovskii Yu.M., Stepanov M.S. Microarc cementation of steel items in powder medium. Uprochnyayushchie tekhnologii i pokrytiya. 2013, no. 12, pp. 25–29. (In Russ.).</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
