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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">10.17073/0368-0797-2017-7-549-555</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1128</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>ДЕФОРМАЦИОННОЕ УПРОЧНЕНИЕ МОНОКРИСТАЛЛОВ ГЦК СПЛАВА НА МЕЗОУРОВНЕ</article-title><trans-title-group xml:lang="en"><trans-title>STRAIN HARDENING OF MONOCRYSTALS OF ALLOY FCC AT MESOLEVEL</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>Теплякова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Teplyakova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.ф.-м.н., профессор кафедры физики</p></bio><bio xml:lang="en"><p>Dr. Sci. (Phys.-math.), Professor of the Chair of Physics</p></bio><email xlink:type="simple">lat168@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>Куницына</surname><given-names>Т. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kunitsyna</surname><given-names>T. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.ф.-м.н., доцент кафедры высшей математики</p></bio><bio xml:lang="en"><p>Cand. Sci. (Phys.-math.), Assist. Professor of the Chair of Advanced Mathematics</p></bio><email xlink:type="simple">kma11061990@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>Конева</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Koneva</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.ф.-м.н., профессор кафедры физики</p></bio><bio xml:lang="en"><p>Dr. Sci. (Phys.-math.), Professor of the Chair of Physics</p></bio><email xlink:type="simple">koneva@tsuab.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>Кашин</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kashin</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p></bio><bio xml:lang="en"><p>Student</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Томский государственный архитектурно-строительный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tomsk State University of Architecture and Building</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>19</day><month>08</month><year>2017</year></pub-date><volume>60</volume><issue>7</issue><fpage>549</fpage><lpage>555</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Теплякова Л.А., Куницына Т.С., Конева Н.А., Кашин А.Д., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Теплякова Л.А., Куницына Т.С., Конева Н.А., Кашин А.Д.</copyright-holder><copyright-holder xml:lang="en">Teplyakova L.A., Kunitsyna T.S., Koneva N.A., Kashin A.D.</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/1128">https://fermet.misis.ru/jour/article/view/1128</self-uri><abstract><p>Проведен анализ закономерностей деформационного упрочнения в монокристаллах однофазного разупорядоченного сплава Ni3Fe. Исследованные монокристаллы были деформированы сжатием при комнатной температуре. Ось сжатия монокристаллов была параллельна кристаллографическому направлению [<xref ref-type="bibr" rid="cit001">001</xref>]. Для кривой деформации [<xref ref-type="bibr" rid="cit001">001</xref>]-монокристаллов сплава Ni3Fe характерна стадийность. Смена стадий обусловлена определенной последовательностью субструктурных превращений. Сплав Ni3Fe в состоянии с ближним атом-ным порядком является сплавом со средним значением энергии дефекта упаковки и в нем при пластической деформации реализуется низкоэнергетическая ветвь эволюции субструктуры: плоские скопления → сетчатая субструктура → полосовая структура. Линейная стадия деформационного упрочнения этого сплава связана с формированием неоднородной сетчатой дислокационной структуры. По электронно- микроскопическим снимкам сетчатой субструктуры в работе были измерены длины свободных сегментов дислокаций между различными видами стопоров, образующихся вдоль линии дислокаций в результате пересечения дислокаций различных систем. На основе комплекса измеренных характеристик сетчатой субструктуры, формирующейся в исследованных монокристаллах в пределах стадии II, проведены оценки вкладов различных механизмов деформационного упрочнения в напряжение течения, а именно, пересечение дислокаций; волочение порогов; создание и разрыв дислокационных реакций; преодоление дислокационных барьеров Ломера–Коттрелла, Хирта; генерация точечных дефектов. Изучены закономерности формирования дальнодействующих напряжений и упругое взаимодействие дислокаций. Определены вклады статических и динамических напряжений. Для того, чтобы учесть неоднородность сетчатой субструктуры, вклады были определены отдельно для плотных и неплотных ее участков. На основе проведенных оценок парциальных вкладов всех рассмотренных механизмов установлено, что основной вклад в сопротивление деформированию высокосимметрично ориентированных монокристаллов разупорядоченного сплава Ni3Fe вносит механизм торможения дислокаций, обусловленный контактным взаимодействием движущихся дислокаций с дислокациями леса. Возрастание с деформацией плотности стопоров вдоль линии дислокации (как порогов, так и реакций) является первопричиной деформационного упрочнения ГЦК сплава с ближним атомным порядком. </p></abstract><trans-abstract xml:lang="en"><p>The paper presents the analysis of strain hardening in monocrystals of single-phase disordered alloy Ni3 Fe. These monocrystals are subjected to compression at room temperature. The compression axis is parallel to [<xref ref-type="bibr" rid="cit001">001</xref>] crystallographic direction. The strain curve of monocrystals with [<xref ref-type="bibr" rid="cit001">001</xref>] orientation is characterized by several stages conditioned by a certain sequence of substructural transformations. Ni3 Fe alloy with monocrystals of atomic short-range order possesses an average value of stacking fault energy. Plastic deformation enables the low-energy evolutionary branch of substructure: plane dislocation clusters → knitted structure → striple structure. The linear stage of the alloy strain hardening is connected with the formation of non-homogeneous knitted dislocation structure. TEM images of this structure allow measuring the free distances between the different dislocation locks formed along the dislocation line due to the dislocation intersections of different slip systems. Using the parameters measured for the monocrystal knitted structure, the contribution of strain-hardening mechanisms to shear stress was evaluated. These mechanisms include dislocation intersection, threshold creep, formation and destruction of dislocation junctions, crossing of Lomer–Cottrell and Hirth dislocation barriers and spot defect generation. The formation laws for long-range stresses and elastic interaction between dislocations were studied and the static and dynamic stress contribution to the total stress was determined. To consider the non-homogeneity of knitted dislocation structure, the contributions are detected individually for its dense and loose areas. The estimation of partial contribution made by each mechanism indicates that the main impact to deformation resistance of monocrystals oriented for multiple slip is made by the dislocation hindering, caused by contact interaction between moving and forest dislocations. The deformation growth enables the density increase in the dislocation locks (thresholds and junctions) along the dislocation line, caused by strain hardening of alloy FCC having an atomic short-range order. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>монокристалл</kwd><kwd>сплав</kwd><kwd>пластическая деформация</kwd><kwd>дислокационная структура</kwd><kwd>плотность дислокаций</kwd><kwd>механизмы деформационного упрочнения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>monocrystal</kwd><kwd>alloy</kwd><kwd>plastic deformation</kwd><kwd>dislocation structure</kwd><kwd>dislocation density</kwd><kwd>strain hardening mechanisms</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">Панин В.Е., Гриняев Ю.В., Елсукова Т.Ф., Иванчин А.Г. Структурные уровни деформации твердых тел // Изв. вуз. Физика. 1982. № 6. 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