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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">10.17073/0368-0797-2017-11-897-903</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1172</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>ИССЛЕДОВАНИЕ МОДИФИКАЦИИ СПЛАВОВ НАНОМАТЕРИАЛАМИ</article-title><trans-title-group xml:lang="en"><trans-title>STUDY OF ALLOYS MODIFICATION BY NANOMATERIALS</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>Бородянский</surname><given-names>К. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Borodyanskiy</surname><given-names>K. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор философии,</p><p>40700, Ариэль</p></bio><bio xml:lang="en"><p>Ph.D.,</p><p>40700, Ariel</p></bio><email xlink:type="simple">konstantinb@ariel.ac.il</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>Зиниград</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Zinigrad</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор, ректор,</p><p>40700, Ариэль</p></bio><bio xml:lang="en"><p>Dr. Sci. (Physical Chemistry), Professor, Rector,</p><p>40700, Ariel</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, советник, д.т.н., профессор, главный научный сотрудник,</p><p>119991, Москва, Ленинский пр., 32а;</p><p>119334,  Москва, Ленинский пр., 49;</p><p>119334, Россия, Москва, Ленинский пр., 49</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Professor, Academician, Adviser of the Russian Academy of Sciences, Chief Researcher,</p><p>Department of Chemistry and Material Sciences, 119991, Moscow, Leninskii prosp., 32a;</p><p>119334, Moscow, Leninskii prosp., 49;</p><p>119049, Moscow, Leninskii prosp., 4</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет Ариэля</institution><country>Израиль</country></aff><aff xml:lang="en"><institution>Ariel University</institution><country>Israel</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Президиум РАН;&#13;
Институт металлургии и материаловедения им. А.А. Байкова РАН;&#13;
Национальный исследовательский технологический университет «МИСиС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Scientific Council on Metallurgy and Metal Science of Russian Academy of Sciences;&#13;
Baikov Institute of Metallurgy and Materials Science, RAS;&#13;
National University of Science and Technology “MISIS” (MISIS)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>28</day><month>11</month><year>2017</year></pub-date><volume>60</volume><issue>11</issue><fpage>897</fpage><lpage>903</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бородянский К.Б., Зиниград М.И., Леонтьев Л.И., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Бородянский К.Б., Зиниград М.И., Леонтьев Л.И.</copyright-holder><copyright-holder xml:lang="en">Borodyanskiy K.B., Zinigrad M.I., 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/1172">https://fermet.misis.ru/jour/article/view/1172</self-uri><abstract><p>В последние годы улучшение механических свойств и характеристик металлов является одной из основных проблем в материаловедении и, особенно, в металлургическом производстве. Как правило, процесс легирования традиционно используется для улучшения свойств и характеристик металлов. В последнее время для производства композитных материалов с улучшенными свойствами применяется нанотехнологический подход. Однако данная работа описывает другой метод, в котором различные наночастицы используются в качестве модификаторов в процессе литья металла. Влияние этих наноматериалов исследовано на гипоэвтектическом литейном алюминиевом сплаве и чистой меди. Испытания на прочность и на растяжение показали, что пластичность алюминия улучшилась, а прочность осталась неизменной. В частности, добавление до 0,1  % (по массе) керамических наночастиц увеличивает удлинение металлов при разрушении на 20 – 60 %. Механизм упрочнения, предложенный для этого процесса, был оценен путем применения электронной микроскопии с высокой разрешающей способностью (HR-TEM). Исследования HR-TEM, вместе с результатами испытаний механических свойств, привели к гипотезе о том, что в этом процессе работает механизм упрочнения зерна. В этом механизме упрочнение металла происходит из-за высокой концентрации границ зерен, которые блокируют движение дислокаций. Результаты, полученные при модификации меди, показали улучшение прочности металла одновременно с пластичностью. Такое поведение было получено после добавления многослойных углеродных нанотрубок (MWCNT) и наночастиц TiN до 0,1  % (по массе). Дальнейшее применение описанного подхода может привести к его внедрению в литейную промышленность, превратив ее в экономически выгодную.</p></abstract><trans-abstract xml:lang="en"><p>In last years, improvement of metals mechanical properties and performance comes to be one of the main challenges in materials science and particularly in metallurgical manufacturing. Generally, an alloying process is traditionally applied to reach metals enhanced properties and performance. Recently, nanotechnology approach is also applied, usually to produce composite materials with improved performance. This work, however, describes a different technique, where different nanoparticles areused as modifiers in metal casting process. The influence of these nanomaterials was investigated on a hypoeutectic casting aluminum alloy and on pure copper. Microstructural evaluation of modified Al alloy illustrated that a coarse Al grains were refined. Tensile strength tests revealed that Al ductility improved while the strength remained unchanged. Particularly, results pointed that addition of up to 0.1 wt. % of ceramic nanoparticles enhanced metals elongation at fracture by 20 – 60 %, depending on the mold location. Strengthening mechanism, which took place in the process, was evaluated by applying a high resolution transmission electron microscopy (HR-TEM) studies. HR-TEM investigations, jointly with mechanical properties test results, led to hypothesis that a grain-size strengthening mechanism works in the process. In this mechanism metal strengthening occurs due to a high concentration of grain boundaries which are serving as dislocation movement blockers. Results obtained on copper modification showed the improvement of metal strength simultaneously with its elongation at fracture. This behavior was obtained after addition of multi walled carbon nanotubes (MWCNT) and TiN nanoparticles up to 0.1 wt. %. Further application of the described approach can lead to its implementation into foundry industry turning it to more economically beneficial.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>наноматериалы</kwd><kwd>модификация</kwd><kwd>литейные сплавы</kwd><kwd>механические свойства</kwd><kwd>механизм упрочнения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nanomaterials</kwd><kwd>modification</kwd><kwd>casting alloys</kwd><kwd>mechanical properties</kwd><kwd>strengthening mechanism</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">Callister W.D. Materials Science and Engineering. 7th ed. Hoboken, NJ, USA: John Wiley &amp; Sons Inc., 2007.</mixed-citation><mixed-citation xml:lang="en">Callister W.D. Materials Science and Engineering. 7th ed. 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