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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">10.17073/0368-0797-2019-2-148-153</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1588</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>В ПОРЯДКЕ ДИСКУССИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>IN ORDER OF DISCUSSION</subject></subj-group></article-categories><title-group><article-title>ВЛИЯНИЕ ИМПУЛЬСНОГО ЭЛЕКТРИЧЕСКОГО ТОКА НА ХАРАКТЕР ДВИЖЕНИЯ АВТОВОЛН ПЛАСТИЧЕСКОЙ ДЕФОРМАЦИИ ПРИ РАСТЯЖЕНИИ СТАЛЬНОЙ ПЛАСТИНЫ</article-title><trans-title-group xml:lang="en"><trans-title>INFLUENCE OF PULSED ELECTRIC CURRENT ON THE WAVES MOTION CHARACTER OF PLASTIC DEFORMATION AT TENSION OF A STEEL PLATE</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>Гагарин</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Gagarin</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры естественнонаучных дисциплин им. В.М. Финкеля</p></bio><bio xml:lang="en"><p>Postgraduate of the Chair of Science named after V.M.  Finkel</p></bio><email xlink:type="simple">s.nk@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>Сарычев</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Sarychev</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры естественнонаучных дисциплин им. В.М. Финкеля</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair of Science named after V.M. Finkel</p></bio><email xlink:type="simple">sarychev_vd@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>Невский</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nevskii</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры естественнонаучных дисциплин им. В.М. Финкеля</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair of Science named after V.M. Finkel</p></bio><email xlink:type="simple">nevsliy.sergei@yandex.rul</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>Потекаев</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Potekaev</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.ф.-м.н., профессор, директор Сибирского физико-технического института им. В.Д. Кузнецова (СФТИ ТГУ)</p></bio><bio xml:lang="en"><p>Dr. Sci. (Phys.-math.), Professor, Director of the Siberian Physics and Technics Institute (SPTI TSU)</p></bio><email xlink:type="simple">potekaev@spti.tsu.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный индустриальный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Industrial University, Novokuznetsk, Kemerovo Region</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский Томский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Tomsk State University, Tomsk</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>29</day><month>03</month><year>2019</year></pub-date><volume>62</volume><issue>2</issue><fpage>148</fpage><lpage>153</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гагарин А.Ю., Сарычев В.Д., Невский С.А., Потекаев А.И., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Гагарин А.Ю., Сарычев В.Д., Невский С.А., Потекаев А.И.</copyright-holder><copyright-holder xml:lang="en">Gagarin A.Y., Sarychev V.D., Nevskii S.A., Potekaev A.I.</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/1588">https://fermet.misis.ru/jour/article/view/1588</self-uri><abstract><p>Несмотря на растущий интерес к использованию токовых воздействий для интенсификации формоизменения надежные экспериментальные и теоретические представления о процессах пластической деформации весьма ограничены, а физическая природа эффекта пластификации металлов изучена явно недостаточно. Это сдерживает использование перспективного явления в технологии обработки металлов давлением. Перспективным для решения задач исследования механизмов развитой электростимулированной пластической деформации может явиться подход к пластическому течению как к волновому процессу. Методами инфракрасной термографии и двухэкспозиционной спекл-интерферометрии исследована пластическая деформация малоуглеродистой стали при воздействии импульсного электрического тока. Установлено, что внешнее электрическое воздействие приводит к увеличению скорости волн пластичности на 65 %. Анализ картин распределения скоростей показал, что распределение скорости имеет вид «ударного перехода». В начале координат скорость движения материала равна нулю (неподвижный захват), а на правой части кривой скорость материала равна скорости растяжения, задаваемой испытательной машиной. Воздействие электрического тока приводит к расщеплению скоростей смещений как на подвижных, так и на неподвижных концах образцов. Термографические исследования показали наличие градиента температуры, направленного от зажимов к центру образца, что не совпадает с картиной распределения смещений. Установлено, что при первичной обработке мощными токовыми импульсами в центральной области образца температура образца достигает 351 K, а в области, прилегающей к зажимам, 330 K, то есть температура повысилась на 53 К. Последующие обработки приводят к незначительному повышению температуры. По литературным данным такое повышение температуры для исследуемой стали приводит к снижению предела текучести на 10 %, что соответствует результатам настоящего эксперимента. Если изменение скорости движения медленной волны при пропускании тока ранее было обнаружено и подтверждается в настоящей работе, то анализ распределения скоростей по координате показал, что импульсный ток приводит к расщеплению профиля скоростей вблизи подвижного захвата.</p></abstract><trans-abstract xml:lang="en"><p>Infrared thermography and two-exposure speckle interferometry have been used to study the plastic deformation of low-carbon steel under the action of pulsed electric current. It was established that external electric effect leads to an increase in velocity of plastic waves by 65  %. Analysis of the velocity distribution patterns showed that they have the profile of “shock transition”. At the origin, velocity of the material is zero (motionless gripping), and at the right end of the curve material velocity is equal to stretching speed specified by testing machine. The effect of electric current leads to splitting of the displacements velocities, both at moving and stationary ends of the samples. It is assumed that the observed splitting is related to the Stark splitting of energy levels of the deformed system. This splitting leads to a decrease in the potential barrier for the motion of defects in crystal lattice. Thermographic studies have shown presence of a temperature gradient directed from clamps to center of the sample, which does not coincide with pattern of displacement distribution. It was determined that during the primary treatment with high power current pulses in the central area of the sample, sample temperature reaches 351  K, and 330  K in the area adjacent to clamps. Subsequent treatments result in a slight increase in temperature. This behavior of temperature can be explained by the fact that heat does not dissipate at a repetition rate of 10  Hz. On an average, sample temperature increases by 30  K. Theoretical calculation has shown that the Joule effect leads to an increase in temperature of the sample by 21  K per pulse, which is practically in agreement with experimental results. Estimates of thermal energy and energy of elastic deformation have shown that the fastest channel for converting the energy of electric pulse is structural changes in deformable system, which lead to the observed decrease in deforming force.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электроимпульсная обработка</kwd><kwd>пластическая деформация</kwd><kwd>эффект электропластичности</kwd></kwd-group><kwd-group xml:lang="en"><kwd>electropulse treatment</kwd><kwd>plastic deformation</kwd><kwd>electroplasticity effect</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа проведена при поддержке гранта РФФИ № 17-32- 50012/17 от 18.10.2017 шифр «Стажер» и государственного задания Минобрнауки РФ № 3.1283.2017/4.6. Особую благодарность за помощь в проведении опытов и расшифровки данных измерительного оборудования коллектив авторов выражает сотрудникам ИФПМ А.Г. Лунёву и В.В. Горбатенко.</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">Ruszkiewicz B.J., Grimm T., Ragai I., Mears L., Roth J.T. A Review of Electrically-Assisted Manufacturing With Emphasis on Modeling and Understanding of the Electroplastic Eﬀect // Journal of Manufacturing Science and Engineering. 2017. Vol. 139. No. 11. P. 110801 (1-15).</mixed-citation><mixed-citation xml:lang="en">Ruszkiewicz B.J., Grimm T., Ragai I., Mears L., Roth J.T. A review of electrically-assisted manufacturing with emphasis on modeling and understanding of the electroplastic eﬀect. 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