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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">cvmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Цветная металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Non-Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3438</issn><issn pub-type="epub">2412-8783</issn><publisher><publisher-name>НИТУ МИСИС</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0021-3438-2017-3-72-76</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-509</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>Литейное производство</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Foundry</subject></subj-group></article-categories><title-group><article-title>ВЛИЯНИЕ МОДИФИКАТОРОВ НА ИЗМЕНЕНИЕ МЕХАНИЧЕСКИХ СВОЙСТВ СИЛУМИНОВ</article-title><trans-title-group xml:lang="en"><trans-title>INFUENCE OF MODIFIERS ON THE CHANGE OF MECHANICAL PROPERTIES OF SILUMINS</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>Никитин</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitin</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор технических наук, доцент, декан факультета машиностроения, металлургии и транспорта </p><p>(443100, г. Самара, ул. Молодогвардейская, 244). </p></bio><bio xml:lang="en"><p>Dr. Sci. (Tech.), associate prof., dean of the faculty of mechanical engineering, metallurgy and transport </p><p>(443100, Russia, Samara, Molodogvardeiskaya str., 244)</p></bio><email xlink:type="simple">kvn-6411@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>Никитин</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitin</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">tlp@samgtu.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>Тимошкин</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Timoshkin</surname><given-names>I. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">ivan-mns@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Самарский государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Samara State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>12</day><month>06</month><year>2017</year></pub-date><volume>0</volume><issue>3</issue><fpage>72</fpage><lpage>76</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Никитин К.В., Никитин В.И., Тимошкин И.Ю., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Никитин К.В., Никитин В.И., Тимошкин И.Ю.</copyright-holder><copyright-holder xml:lang="en">Nikitin K.V., Nikitin V.I., Timoshkin I.Y.</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://cvmet.misis.ru/jour/article/view/509">https://cvmet.misis.ru/jour/article/view/509</self-uri><abstract><p>Повышение суммы легирующих элементов в промышленных силуминах обуславливает формирование в их структуре избыточных интерметаллидных фаз. При внесении в такие сплавы модификаторов выше некоторого определенного количества происходит огрубление структурных составляющих вследствие перемодифицирования, что может вызвать снижение механических свойств литых сплавов. С увеличением суммы легирующих элементов в сплавах от 7,35 % (АК7ч) до 14,3 % (АК10М2Н) оптимальный расход модифицирующего микрокристаллического переплава уменьшается с 0,6 до 0,3 мас.%. При использовании лигатуры AlTi5 оптимальное количество вводимого титана снижается с 0,05 до 0,01 %, а в случае лигатуры AlTi5B1 – с 0,02 до 0,01 %. С увеличением содержания кремния усиливается модифицирующее воздействие лигатуры AlSr10, причем при меньших количествах вводимого в сплавы стронция. Показано, что расход ме-таллического модификатора зависит от его модифицирующей способности, а также от суммы легирующих элементов в модифицируемом силумине.</p></abstract><trans-abstract xml:lang="en"><p>An increase in the sum of alloying elements in industrial silumins causes excess intermetallic phases to form in their structure. When the amount of modifiers introduced into such alloys exceeds a certain amount, structural components coarsen due to overmodification, which may cause deterioration of mechanical properties of cast alloys. As the amount of alloying elements in alloys increases from 7,35 % (АК7ch) to 14,3 % (АК10М2N), the optimum consumption of the modifying microcrystalline remelt decreases from 0,6 to 0,3 wt.%. The optimum amount of introduced titanium is reduced from 0,05 to 0,01 % when using the AlTi5 master alloy and from 0,02 to 0,01 % when using the AlTi5B1 master alloy. With an increase in the silicon content, the modifying effect of the AlSr10 master alloy is enhanced, while the amounts of strontium introduced into alloys are smaller. The paper demonstrates that metallic modifier consumption depends on its modifying property, as well as on the sum of alloying elements in the modified silumin.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>промышленные силумины</kwd><kwd>сумма легирующих элементов</kwd><kwd>микрокристаллический модифицирующий переплав</kwd><kwd>микрокристаллические модифицирующие лигатуры</kwd><kwd>оптимальный расход модификаторов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>industrial silumins</kwd><kwd>amount of alloying elements</kwd><kwd>microcrystalline modifying remelt</kwd><kwd>microcrystalline modifying master alloys</kwd><kwd>optimized flow of modifiers</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Министерство образования и науки Российской Федерации</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">Mishra R.K., Venkatesh R. 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