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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">10.17073/0368-0797-2024-3-325-331</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2736</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>Особенности кинетики деформационных фронтов при скачкообразной деформации Людерса в α-железе при повышенной температуре</article-title><trans-title-group xml:lang="en"><trans-title>Kinetics of deformation fronts during serrated Lüders deformation in α-iron at high temperature</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0068-2542</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орлова</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlova</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дина Владимировна Орлова, к.ф.-м.н., научный сотрудник лаборатории физики прочности</p><p>Россия, 634055, Томск, пр. Академичес­кий, 2/4</p></bio><bio xml:lang="en"><p>Dina V. Orlova, Cand. Sci. (Phys.-Math.), Research Associate of the Laboratory of Strength Physics</p><p>2/4 Akademiches­kii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">dvo@ispms.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5741-7574</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Данилов</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilov</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Иванович Данилов, д.ф.-м.н., профессор, главный научный сотрудник лаборатории физики прочности</p><p>Россия, 634055, Томск, пр. Академичес­кий, 2/4</p></bio><bio xml:lang="en"><p>Vladimir I. Danilov, Dr. Sci. (Phys.-Math.), Prof., Chief Researcher of the Laboratory of Strength Physics</p><p>2/4 Akademiches­kii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">dvi@ispms.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6464-6159</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горбатенко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorbatenko</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вадим Владимирович Горбатенко, к.ф.-м.н., старший научный сотрудник лаборатории физики прочности</p><p>Россия, 634055, Томск, пр. Академичес­кий, 2/4</p></bio><bio xml:lang="en"><p>Vadim V. Gorbatenko, Cand. Sci. (Phys.-Math.), Senior Researcher of the Laboratory of Strength Physics</p><p>2/4 Akademiches­kii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">gvv@ispms.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4124-0516</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Данилова</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilova</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лидия Владиславовна Данилова, к.ф.-м.н., младший научный сотрудник лаборатории физики прочности</p><p>Россия, 634055, Томск, пр. Академичес­кий, 2/4</p></bio><bio xml:lang="en"><p>Lidiya V. Danilova, Cand. Sci. (Phys.-Math.), Junior Researcher of the Laboratory of Strength Physics</p><p>2/4 Akademiches­kii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">dlv@ispms.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3140-5292</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бочкарева</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bochkareva</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анна Валентиновна Бочкарева, к.т.н., научный сотрудник лаборатории физики прочности</p><p>Россия, 634055, Томск, пр. Академичес­кий, 2/4</p></bio><bio xml:lang="en"><p>Anna V. Bochkareva, Cand. Sci. (Eng.), Research Associate of the Laboratory of Strength Physics</p><p>2/4 Akademiches­kii Ave., Tomsk 634055, Russian Federation</p></bio><email xlink:type="simple">avb@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 the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>16</day><month>06</month><year>2024</year></pub-date><volume>67</volume><issue>3</issue><fpage>325</fpage><lpage>331</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Орлова Д.В., Данилов В.И., Горбатенко В.В., Данилова Л.В., Бочкарева А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Орлова Д.В., Данилов В.И., Горбатенко В.В., Данилова Л.В., Бочкарева А.В.</copyright-holder><copyright-holder xml:lang="en">Orlova D.V., Danilov V.I., Gorbatenko V.V., Danilova L.V., Bochkareva A.V.</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/2736">https://fermet.misis.ru/jour/article/view/2736</self-uri><abstract><p>При комнатной температуре деформация большинства ОЦК-металлов, которые содержат небольшое количество элементов внедрения, сопровождается образованием полосы Людерса и ее монотонным распространением на площадке текучести при растяжении. В рамках автоволновой концепции фронт полосы Людерса является автоволной переключения, которая реализует переход из мета­стабильного упруго деформируемого в стабильное пластически деформируемое состояние. Однако в температурном интервале синеломкости мягких сталей 423 – 510 К, когда имеет место взаимодействие атомов растворенного вещества с подвижными дислокациями, распространение полосы Людерса сопровождается прерывистым течением. В настоящей работе рассмотрены закономерности распрост­ранения фронтов Чернова-Людерса в АРМКО-железе в интервале температур от 296 до 503 К и скоростей деформирования от 6,67·10–6 до 3,7·10–2 с–1. Установлено, что в этих условиях может реализовываться как монотонная, так и дискретная кинетика движения фронтов. Независимо от характера движения, деформация Людерса и ширина фронта в течение всего процесса остаются неизменными. Локальная скорость деформации на фронте зависит от величины действующего напряжения, причем при монотонной кинетике она возрастает с напряжением по степенному закону, а при дискретной – по линейному закону. Данное различие обусловлено разными автоволновыми модами, которые при этом формируются. Монотонной кинетике соответствует автоволна переключения локализованной пластичности, а дискретной – автоволна возбуждения.</p></abstract><trans-abstract xml:lang="en"><p>At room temperature, the deformation of most bcc metals, which contain a small amount of interstitial elements, is accompanied by the formation of a Lüders band and its monotonic propagation over the tensile yield area. Within the framework of the autowave concept, front of the Lüders band is a switching autowave, which realizes the transition from a metastable elastically deformable state to a stable plastically deformable state. However, in the temperature range of blue brittleness of mild steels of 423 – 510 K, when the interaction of atoms of the dissolved substance with mobile dislocations takes place, propagation of the Lüders band is accompanied by a discrete flow. The patterns of propagation of the Chernov-Lüders fronts in ARMCO iron in the temperature range from 296 to 503 K and strain rates from 6.67·10–6 to 3.7·10–2 s–1 are considered in this paper. It was established that under these conditions both monotonic and discrete kinetics of front movement can be realized. Regardless of the movement nature, the Lüders deformation and width of the front remain unchanged throughout the entire process. The local strain rate at the front depends on magnitude of the effective stress, and with monotonic kinetics it increases with stress according to an exponential law, and with discrete kinetics it increases according to a linear law. This difference is due to different autowave modes that are formed in this case. The autowave of localized plasticity switching corresponds to monotonic kinetics, and the autowave of excitation – to discrete kinetics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>деформация Чернова-Людерса</kwd><kwd>фронты локализованной деформации</kwd><kwd>локальная скорость деформации</kwd><kwd>автоволны</kwd><kwd>локализованная пластичность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Chernov-Lüders deformation</kwd><kwd>deformation front</kwd><kwd>local strain rate</kwd><kwd>autowave</kwd><kwd>localized plasticity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Института физики прочности и материаловедения Сибирского отделения РАН, тема номер FWRW-2021-0011.</funding-statement><funding-statement xml:lang="en">The work was performed within the framework of the state task of the Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Science, subject No. 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">Hall E.O. 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