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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">10.17073/0368-0797-2019-8-627-631</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1694</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>Расчет изменения удельных объемов сплавов системы Fe – C в зависимости от содержания углерода и температуры</article-title><trans-title-group xml:lang="en"><trans-title>Calculation of changes in specific volumes of Fe – C system alloys depending on carbon content and temperatures</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>Габелая</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gabelaya</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры металлургии, машиностроения и технологического оборудования</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair of Metallurgy, Machine Building and Technological Equipment</p></bio><email xlink:type="simple">digabelaia@chsu.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>Кабаков</surname><given-names>З. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kabakov</surname><given-names>Z. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор кафедры металлургии, машиностроения и технологического оборудования</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Professor of the Chair of Metallurgy, Machine Building and Technological Equipment</p></bio><email xlink:type="simple">zkkabakov@chsu.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>Мащенко</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mashchenko</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры металлургии, машиностроения и технологического оборудования</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair of Metallurgy, Machine Building and Technological Equipment</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Череповецкий государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cherepovets State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>12</day><month>09</month><year>2019</year></pub-date><volume>62</volume><issue>8</issue><fpage>627</fpage><lpage>631</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Габелая Д.И., Кабаков З.К., Мащенко М.А., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Габелая Д.И., Кабаков З.К., Мащенко М.А.</copyright-holder><copyright-holder xml:lang="en">Gabelaya D.I., Kabakov Z.K., Mashchenko M.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/1694">https://fermet.misis.ru/jour/article/view/1694</self-uri><abstract><p>Представлена новая методика расчета температурных зависимостей удельных объемов сплавов равновесной системы Fe – C, основанная на известных расчетных и эмпирических зависимостях для определения изменения удельных объемов фаз от температуры и содержания углерода. Ранее большинство подобного рода расчетов основывалось на зависимостях С.Ф. Юрьева, которые получены для температуры ниже 1200 °С. При использовании этих формул при температурах выше 1200 °С удельный объем аустенита превышает удельный объем феррита. Однако известно, что аустенит имеет наименьший удельный объем среди всех фаз системы Fe – C. В связи с этим возникает необходимость в использовании других зависимостей, которые бы не противоречили физике процессов полиморфных и фазовых превращений в системе Fe – C. Получены общие зависимости для расчета удельных объемов сплавов отдельно для трех интервалов концентраций углерода, в которых изменения долей фаз от температуры рассчитываются по равновесной диаграмме Fe – C с использованием правила рычага. В качестве примера представлены результаты расчетного определения удельных объемов сплавов с содержанием углерода 0,05, 0,13 и 0,33 % в интервале температур 20 – 1600 °С. Выполнено сравнение представленных результатов с полученными с помощью пакета расчета фазовых диаграмм JMatPro®, на основе которого установлена адекватность предложенной расчетной методики. Разработанная методика может быть использована для расчетного определения удельных объемов сплавов, а также их плотности и коэффициента линейного расширения в зависимости от температуры и концентрации углерода. Полученные формулы для расчета удельных объемов позволяют корректно моделировать процессы затвердевания, охлаждения и усадки заготовок при непрерывной разливке сталей углеродистых марок с учетом эффектов фазовых превращений, а также использовать полученные результаты при настройке оборудования МНЛЗ.</p></abstract><trans-abstract xml:lang="en"><p>The work presents a new technique for determining the temperature dependence of the alloy specific volumes in Fe – C equilibrium system based on known from the literature calculated and empirical dependence for account of the phases’ specific volumes. These data were based on the independent reports of S.F. Yuryev and were obtained for temperatures below 1200 °C. When using these forms at temperatures above 1200 °C, the specific volume of austenite exceeds specific volume of ferrite. However, it is known that austenite has the smallest specific volume among all phases of the Fe – C system. In this regard, in the field of high temperatures, it is proposed to use other dependences that do not contradict the physics of polymorphic and phase transformations in this system. Thus the authors have obtained the general expressions for calculating the alloys’ specific volumes separately for three intervals of carbon concentrations in which the change in shares of the temperature phases are calculated according to Fe – C equilibrium diagram using the lever relation. As an example, results of the calculated determination of specific volumes of alloys with carbon vontent of 0.05, 0.13 and 0.33 % in the temperature range of 20 – 1600 °C are considered. The presented results are compared with the results obtained with the help of the phase diagram calculation package JMatPro®, on the basis of which the adequacy of the proposed calculation method was established. The developed technique can be used to calculate not only specific volumes of alloys, but also their density and coefficient of linear expansion depending on temperature and carbon concentration. It is the basis for the correct use of methods for determining the size of continuous cast billets due to shrinkage in order to correctly configure the equipment of continuous casting machines.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>удельный объем</kwd><kwd>плотность</kwd><kwd>фаза</kwd><kwd>усадка</kwd><kwd>линейное расширение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>specific volume</kwd><kwd>density</kwd><kwd>phase</kwd><kwd>shrinkage</kwd><kwd>linear expansion</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">Варгафтик Н.Б. Теплофизические свойства веществ. – Л.: Госэнергоиздат, 1956. – 367 с.</mixed-citation><mixed-citation xml:lang="en">Vargaftik N.B. 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