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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">10.17073/0368-0797-2022-10-699-705</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2413</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>Исследование локализации деформации на начальных стадиях пластического течения высокомарганцовистой стали</article-title><trans-title-group xml:lang="en"><trans-title>Localization of strains at the initial stage of plastic yield of high manganese steel</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5010-9969</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баранникова</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Barannikova</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Светлана Александровна Баранникова, д.ф.-м.н., ведущий научный сотрудник лаборатории физики прочности</p><p>Россия, 634055, Томск, пр. Академичес­кий, 2/4</p></bio><bio xml:lang="en"><p>Svetlana A. Barannikova, Dr. Sci. (Phys.-Math.), Leading Researcher of the Laboratory of Strength Physics</p><p>2/4 Akademi­ches­kii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">bsa@ispms.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 Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>30</day><month>10</month><year>2022</year></pub-date><volume>65</volume><issue>10</issue><fpage>699</fpage><lpage>705</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Баранникова С.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Баранникова С.А.</copyright-holder><copyright-holder xml:lang="en">Barannikova S.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/2413">https://fermet.misis.ru/jour/article/view/2413</self-uri><abstract><p>Исследована макроскопическая локализация пластической деформации при одноосном растяжении монокристаллов стали Гадфильда (Fe – 13 % Mn – 1,03 % C). На стадии легкого скольжения обнаружены существенные различия в характере макролокализации пластической деформации. Все наблюдавшиеся в этих случаях картины локализации деформации можно разделить на два типа. Первый тип локализации деформации соответствует зарождению на верхнем пределе текучести и дальнейшему распространению фронта деформации, который поэтапно переводит материал образца из недеформированного состояния в деформированное. Наиболее наглядно это проявляется в монокристаллах, ориентированных вдоль осей растяжения \([\bar{3}77]\) и \([\bar{3}55]\), где на площадке текучести картина локализации деформации представляется одиночной зоной. Такой деформационный фронт проходит в объеме образца только один раз как полоса Чернова-Людерса. При этом течение материала осуществляется без упрочнения до тех пор, пока все его элементы не окажутся переведенными в деформированное состояние. Одиночные зоны локализации деформации наблюдаются также на стадиях легкого скольжения и площадке текучести в монокристаллах стали Гадфильда, ориентированных вдоль осей растяжения \([\bar{1}23]\) и \([<xref ref-type="bibr" rid="cit012">012</xref>]\). При втором типе локализации на стадии легкого скольжения происходит синхронное движение по образцу нескольких очагов деформации. Движение может быть однонаправленным и встречным. Дальнейшее деформирование монокристаллов стали Гадфильда, ориентированных вдоль осей растяжения \([\bar{3}55]\) или \([<xref ref-type="bibr" rid="cit012">012</xref>]\), приводит на стадии легкого скольжения к движению двух очагов локализации деформации. В монокристаллах, ориентированных вдоль оси \([\bar{1}11]\), картина локализации деформации представлена в виде четырех очагов локализованной деформации. Следовательно, синхронное движение фронтов деформации происходит по уже деформированному материалу. В качестве причины различия двух типов локализации макродеформации на стадии легкого скольжения и площадке текучести может обсуждаться число активных систем скольжения или двойникования при растяжении исследованных монокристалов.</p></abstract><trans-abstract xml:lang="en"><p>The study concerns the macroscopic localization of plastic strain during uniaxial tension of Hadfield steel (Fe – 13 %, Mn – 1.03 % C) monocrystals. At the easy glide stage, significant differences were noted in the nature of plastic strain macrolocalization. All strain localization patterns observed in these cases can be divided into two types. The first type of strain localization corresponds to nucleation at the upper yield point and to further propagation of the strain front. This gradually transforms the specimen material from an undeformed state to a deformed one. This is most clearly manifested in monocrystals oriented along tensile axes \([\bar{3}77]\) and \([\bar{3}55]\), where the localization of strains is represented by a single zone in the yield area. This strain front passes through the specimen volume only once as a Chernov-Lüders band. In this case, the material flows without hardening until all of its elements have been converted to a strain state. Single strain localization zones are also observed at easy glide stages and the yield point in Hadfield steel monocrystals oriented along tensile axes \([\bar{1}23]\) and \([<xref ref-type="bibr" rid="cit012">012</xref>]\). In the second type of localization a synchronous movement of several strain centers occurs in the specimen at the easy glide stage. The movement may be unidirectional or counteracting. Further strain of Hadfield steel monocrystals oriented along tensile axes \([\bar{3}55]\) or \([<xref ref-type="bibr" rid="cit012">012</xref>]\) results in the movement of two strain localization centers at the easy glide stage. In monocrystals oriented along axis \([\bar{1}11]\), the strain localization pattern is represented as four localized strain centers. Consequently, the synchronous movement of strain fronts occurs in the already strained material. The number of active glide or twinning systems in the tensile strain of monocrystals studied can be viewed as a reason for the difference between the two types of macrostrain localization at the easy glide stage and the yield point.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пластическая деформация</kwd><kwd>локализация</kwd><kwd>монокристаллы</kwd><kwd>нержавеющие стали</kwd><kwd>площадка текучести</kwd></kwd-group><kwd-group xml:lang="en"><kwd>plastic strain</kwd><kwd>localization</kwd><kwd>monocrystals</kwd><kwd>stainless steels</kwd><kwd>yield point</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ИФПМ СО РАН, проект FWRW-2021-0011.</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, Siberian Branch of Russian Academy of Sciences, project FWRW-2021-0011.</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">Зуев Л.Б. 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