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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">lim</journal-id><journal-title-group><journal-title xml:lang="ru">Литье и металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1683-6065</issn><issn pub-type="epub">2414-0406</issn><publisher><publisher-name>BNTU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21122/1683-6065-2019-2-36-38</article-id><article-id custom-type="elpub" pub-id-type="custom">lim-2861</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>Научная проблема модифицирования первичных кристаллов β-фазы отливок из силумина. Пути решения</article-title><trans-title-group xml:lang="en"><trans-title>Scientific problem of modifying of primary crystals a β -phase of silumin castings. Solutions</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>Марукович</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Marukovich</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"/><email xlink:type="simple">lms@itm.by</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>Стеценко</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Stetsenko</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"/><email xlink:type="simple">lms@itm.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт технологии металлов НАН Беларуси</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Institute of Technology of Metals of National Academy of Sciences of Belarus</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>09</day><month>08</month><year>2019</year></pub-date><volume>0</volume><issue>2</issue><fpage>36</fpage><lpage>38</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Марукович Е.И., Стеценко В.Ю., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Марукович Е.И., Стеценко В.Ю.</copyright-holder><copyright-holder xml:lang="en">Marukovich E.I., Stetsenko V.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://lim.bntu.by/jour/article/view/2861">https://lim.bntu.by/jour/article/view/2861</self-uri><abstract><p>Показано, что фосфор, содержащийся в расплаве силумина в количестве 0,01–0,04%, находится в растворенном виде. Для решения проблемы модифицирования первичных кристаллов β-фазы в отливках из силумина необходимо принять, что адсорбированный расплавом кислород способствует распаду и препятствует образованию центров кристаллизации первичных кристаллов β-фазы. Роль фосфора сводится к уменьшению концентрации адсорбированного кислорода, который действует как демодификатор первичной микроструктуры отливок.</p></abstract><trans-abstract xml:lang="en"><p>It is shown that the phosphorum which is contained in a silumin melt in number of 0,01–0,04% exists in the dissolved form. For a solution of the problem of modifying of primary crystals of a β -phase in silumin castings it is necessary to accept a presumption that the oxygen adsorbed by a melt promotes decay and hinders the formation of crystallization centers of primary crystals of a β -phase. The role of phosphorum comes down to reduction of concentration of the adsorbed oxygen which works as the demodifier of primary microstructure of castings.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>модифицирование</kwd><kwd>силумин</kwd><kwd>нанокристаллы</kwd><kwd>центры кристаллизации</kwd><kwd>адсорбированный кислород</kwd><kwd>первичные кристаллы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>modifying</kwd><kwd>silumin</kwd><kwd>nanocrystals</kwd><kwd>crystallization centers</kwd><kwd>the adsorbed oxygen</kwd><kwd>primary crystals.</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">Фоченков Б. А., Рябов В. И. Заэвтектические силумины для поршней ДВС // Автомобильная промышленность. 2002. № 10. С. 29–31.</mixed-citation><mixed-citation xml:lang="en">Fochenkov B. A., Ryabov V. I. 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