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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">10.17073/0368-0797-2015-1-54-60</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-134</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 И НАНОТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATERIAL SCIENCE AND NANOTECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>ТЕРМОДИНАМИКА РАСТВОРОВ КИСЛОРОДА В РАСПЛАВАХ СИСТЕМ Fe – Ni, Fe – Co и Co – Ni</article-title><trans-title-group xml:lang="en"><trans-title>THERMODYNAMICS OF OXYGEN SOLUTIONS IN THE Fe – Ni, Fe – Co AND Ni – Co MELTS</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>Дашевский</surname><given-names>В. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Dashevskii</surname><given-names>V. Ya.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., заведующий лабораторией</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Head of the Laboratory</p></bio><email xlink:type="simple">vdashev@imet.ac.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>Александров</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleksandrov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., старший научный сотрудник</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Senior Researcher</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Леонтьев</surname><given-names>Л. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Leont’ev</surname><given-names>L. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик РАН, главный научный сотрудник</p></bio><bio xml:lang="en"><p>RAS Academician, Chief Researcher</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт металлургии и материаловедения им. А.А. Байкова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy and Material Science named after Baikov  A.A., RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>22</day><month>03</month><year>2015</year></pub-date><volume>58</volume><issue>1</issue><fpage>54</fpage><lpage>60</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дашевский В.Я., Александров А.А., Леонтьев Л.И., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Дашевский В.Я., Александров А.А., Леонтьев Л.И.</copyright-holder><copyright-holder xml:lang="en">Dashevskii V.Y., Aleksandrov A.A., Leont’ev L.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/134">https://fermet.misis.ru/jour/article/view/134</self-uri><abstract><p>Проведен термодинамический анализ растворов кислорода в расплавах систем Fe – Ni – O, Fe – Co – O, Co – Ni – O. Впервые получены состав оксидной фазы и значения равновесных концентраций кислорода в расплавах этих систем во всем диапазоне составов сплавов. В системах Fe – Ni – O и Fe – Co – O по мере увеличения содержания никеля и кобальта в расплавах оксидная фаза содержит, в основном, FeO в достаточно широком диапазоне содержаний никеля и кобальта. Только при мольной доле никеля, близкой к единице, и мольной доле кобальта больше 0,8 резко возрастает содержание NiO и CoO соответственно. В системе Co – Ni – O в оксидной фазе содержится как CoO, так и NiO во всем диапазоне составов сплавов. В системах Fe – Ni и Fe – Co добавки никеля и кобальта в расплав приводят к снижению растворимости кислорода за счет ослабления как никелем, так и кобальтом связей кислорода в расплаве и повышения тем самым его активности. Далее, по мере увеличения содержания никеля и кобальта, концентрация кислорода в расплаве возрастает сначала медленно, а затем весьма резко. В системе Co – Ni добавки никеля к кобальту приводят к повышению растворимости кислорода во всем диапазоне составов сплавов в связи с существенно большей растворимостью кислорода в никеле, чем в кобальте.</p></abstract><trans-abstract xml:lang="en"><p>Thermodynamic analysis of oxygen solutions in the Fe – Ni – O, Fe – Co – O, Co – Ni – O melts was determined. Composition of the oxide phase and the value of the equilibrium oxygen concentration in the melt of those systems were ﬁ rst time obtained in a whole range of alloy compositions. In Fe – Ni – O and Fe – Co – O systems with increasing content of nickel and cobalt in the melts the oxide phase contains mainly FeO in a sufﬁ ciently wide range of content of nickel and cobalt. Only when the mole fraction of nickel is close to unity and the mole fraction of cobalt is more than 0.8, content of NiO and CoO increases sharply. Oxide phase of Co – Ni – O system contains CoO and NiO in the entire range of alloy compositions. In the Fe – Ni and Fe – Co systems nickel and cobalt additives in the melt lead to decreased solubility of oxygen due to the attenuation, both nickel and cobalt, oxygen bonds in the melt and thus increases its activity. Further, by increasing the content of nickel and cobalt, the oxygen concentration in the melt increases slowly at ﬁ rst and then quite rapidly. In Co – Ni system nickel additives to cobalt lead to increasing solubility of oxygen in the whole range of alloy compositions due to a substantially greater solubility of oxygen in nickel than in cobalt.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>железо</kwd><kwd>никель</kwd><kwd>кобальт</kwd><kwd>кислород</kwd><kwd>термодинамический анализ</kwd><kwd>оксидная фаза</kwd><kwd>растворимость кислорода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>iron</kwd><kwd>nickel</kwd><kwd>cobalt</kwd><kwd>oxygen</kwd><kwd>thermodynamic analysis</kwd><kwd>oxide phase</kwd><kwd>solubility of oxygen</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">РФФИ</funding-statement><funding-statement xml:lang="en">RFBR</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">Steelmaking Data Sourcebook. 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