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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">10.17073/0368-0797-2022-7-494-503</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2343</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>МЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGICAL TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Исследование влияния технологических параметров на скорость азотирования при получении металлических порошков методом плазменного центробежного распыления</article-title><trans-title-group xml:lang="en"><trans-title>Effect of process parameters on nitriding rate in obtaining powder metal by plasma centrifugal atomization</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7554-1467</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Католиков</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Katolikov</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Дмитриевич Католиков, аспирант кафедры металлургии стали, новых производственных технологий и защиты металлов, Национальный исследовательский технологический университет «МИСиС»; инженер-технолог, ООО «НПФ «КОМТЕРМ»</p><p>Россия, 119049, Москва, Ленинский пр., 4</p><p>Россия, 115088, Москва, Шарикоподшипниковская ул., 4</p></bio><bio xml:lang="en"><p>Vladimir D. Katolikov, Postgraduate of the Chair of Metallurgy of Steel, New Production Technologies and Metal Protection, National University of Science and Technology “MISIS”; Engineer-Technologist, LLC “RPC KOMTERM”</p><p>4 Leninskii Ave., Moscow 119049, Russian Federation</p><p>4 Sharikopodshipnikovskaya Str., Moscow 115088, Russian Federatio</p></bio><email xlink:type="simple">vdkatolikov@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3287-5835</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семин</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Semin</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Евгеньевич Семин, д.т.н., профессор кафедры металлургии и металловедения</p><p>Россия, 309516, Белгородская обл., Старый Оскол, микрорайон Макаренко, 42</p></bio><bio xml:lang="en"><p>Aleksandr E. Semin, Dr. Sci. (Eng.), Prof. of the Chair “Metallurgy and Metallography”</p><p>42 Makarenko District, Stary Oskol, Belgorod Region 309516, Russian Federation</p></bio><email xlink:type="simple">asemin2007@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9517-8263</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Комолова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Komolova</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Александровна Комолова, к.т.н., доцент кафедры металлургии стали, новых производственных технологий и защиты металлов, Национальный исследовательский технологический университет «МИСиС»; старший научный сотрудник лаборатории диагностики материалов, Институт металлургии и материаловедения им. А.А. Байкова РАН</p><p>Россия, 119049, Москва, Ленинский пр., 4</p><p>Россия, 119991, Москва, Ленинский пр., 49</p></bio><bio xml:lang="en"><p>Ol’ga A. Komolova, Cand. Sci. (Eng.), Assist. Prof. of the Chair of Metallurgy of Steel, New Production Technologies and Metal Protection, National University of Science and Technology “MISIS”; Senior Researcher of the Laboratory of Materials Diagnostics, Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences</p><p>4 Leninskii Ave., Moscow 119049, Russian Federation</p><p>49 Leninskii Ave., Moscow 119991, Russian Federation</p></bio><email xlink:type="simple">o.a.komolova@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8216-1451</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Логачев</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Logachev</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иван Александрович Логачев, к.т.н., ведущий инженер лаборатории гибридных аддитивных технологий</p><p>Россия, 119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Ivan A. Logachev, Cand. Sci. (Eng.), Leading Engineer of the Laboratory of Hybrid Additive Technologies</p><p>4 Leninskii Ave., Moscow 119049, Russian Federation</p></bio><email xlink:type="simple">ivan@logachev.biz</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7315-3222</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бочериков</surname><given-names>Р. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Bocherikov</surname><given-names>R. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Роман Евгеньевич Бочериков, аспирант кафедры энергоэффективных и ресурсосберегающих промышленных технологий</p><p>Россия, 119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Roman E. Bocherikov, Postgraduate of the Chair “Energy-Efficient and Resource-Saving Industrial Technologies”</p><p>4 Leninskii Ave., Moscow 119049, Russian Federation</p></bio><email xlink:type="simple">Romann961@gmail.co</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7788-1318</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лакиза</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lakiza</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владислав Андреевич Лакиза, аспирант кафедры «Обработка металлов давлением»</p><p>Россия, 119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Vladislav A. Lakiza, Postgraduate of the Chair “Metal Forming”</p><p>4 Leninskii Ave., Moscow 119049, Russian Federation</p></bio><email xlink:type="simple">lvladislavl@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСиС»; ООО «НПФ «КОМТЕРМ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology “MISIS; LLC “RPC KOMTERM”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Старооскольский технологический институт им. А.А. Угарова, филиал НИТУ МИСиС</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ugarov Stary Oskol Technological Institute of National University of Science and Technology “MISiS”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСиС»; Институт металлургии и материаловедения им. А.А. Байкова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology “MISIS”; Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСиС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology “MISIS”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>27</day><month>07</month><year>2022</year></pub-date><volume>65</volume><issue>7</issue><fpage>494</fpage><lpage>503</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Католиков В.Д., Семин А.Е., Комолова О.А., Логачев И.А., Бочериков Р.Е., Лакиза В.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Католиков В.Д., Семин А.Е., Комолова О.А., Логачев И.А., Бочериков Р.Е., Лакиза В.А.</copyright-holder><copyright-holder xml:lang="en">Katolikov V.D., Semin A.E., Komolova O.A., Logachev I.A., Bocherikov R.E., Lakiza V.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/2343">https://fermet.misis.ru/jour/article/view/2343</self-uri><abstract><p>Повышение эксплуатационных свойств металла обеспечивается введением в него определенного набора и количества легирующих элементов. К таким элементам относится и азот, интерес к которому постоянно растет. В публикациях отмечено, что азотирование газообразным азотом используется, в том числе, при плазменно-дуговом переплаве, приводятся данные легирования металла азотом на стадии получения гранул и порошков. В данной работе исследован процесс азотирования при получении металлических микрогранул из сплава марки ЭП741НП методом плазменного центробежного распыления. Металлические порошки получают путем оплавления торца вращающейся заготовки потоком ионизированного газа (смеси газов). Технология позволяет получать легированные азотом мелкодисперсные металлические порошки многокомпонентных сплавов сферической формы с минимальным количеством сателлитов, не отличающихся по размеру и химическому составу. Исследование скорости азотирования представляет большой интерес, особенно при получении порошкового металла. Одними из параметров, влияющих на степень насыщения металла азотом, являются время нахождения жидкого расплава под азотсодержащей плазмой и время кристаллизации металлической капли. В работе приведена методика, позволяющая дать количественную оценку роли данных параметров на поглощение азота металлом при получении порошка. Известно, что на кинетические параметры процесса азотирования определяющее влияние оказывает площадь контакта двух фаз металл – газ. В случае получения порошка, этот параметр зависит от размера порошинки. В связи с этим, в работе приведена методика расчета, позволяющая оценить средний фракционный состав металлопорошков в зависимости от ряда технологических факторов. Проведено сравнение полученных значений с данными полупромышленных плавок. Показано, что фракционный состав микрогранул зависит от скорости вращения и диаметра переплавляемой заготовки, плотности сплава и силе поверхностного натяжения. Установлено, что при увеличении частоты вращения расходуемого электрода можно добиться уменьшения величины дисперсности металлических порошков.</p></abstract><trans-abstract xml:lang="en"><p>The improved performance properties of metals are ensured by introducing into them certain set and amount of alloying elements. Nitrogen, which is an area of growing interest, is one such element. Publications show that nitriding with gaseous nitrogen is also used for plasma-arc remelting. They provide data on metal alloying with nitrogen at the granules and powders production stage. This paper studies the process of nitriding in obtaining metal microgranules from EP741NP alloy by means of plasma centrifugal atomization. Metal powders are obtained by melting the end face of a rotating workpiece with a stream of ionized gas (gas mixture). The technology allows for nitrogen-alloyed fine metal powders of multicomponent alloys of spherical shape with a minimum number of satellites, which do not differ in size or chemical composition, to be obtained. The study of the nitriding rate is of great interest, especially in production of powder metal. One parameter which affects the degree of metal saturation with nitrogen is the residence time of the liquid melt under the nitrogen-containing plasma, and the crystallization time of a metal droplet. This paper presents a methodology which allows quantification of the role of these parameters on the absorption of nitrogen by the metal in obtaining powder. The kinetic parameters of the nitriding process are influenced by the interface area of two metal – gas phases. In the case of obtaining powder, this parameter depends on the size of the powder particle. In this regard, this paper presents a calculation method which allows the average fractional composition of metal powders to be estimated depending on a number of process factors. The values obtained are compared with the data of semi-industrial melting. It is demonstrated that the fractional composition of microgranules depends on the rotation speed and diameter of the workpiece to be remelted, as well as the alloy density and the surface tension force. It has been established that by increasing the rotation speed of the consumable electrode it is possible to achieve a decrease in the dispersiveness of metal powders.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>плазменное центробежное распыление</kwd><kwd>азот в сплавах</kwd><kwd>металлический порошок</kwd><kwd>плазма</kwd><kwd>азотирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>plasma centrifugal atomization</kwd><kwd>nitrogen in alloys</kwd><kwd>metal powder</kwd><kwd>plasma</kwd><kwd>nitriding</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">Зенина М.В. Производство металлических порошков (гранул) для сырьевого обеспечения аддитивных технологий в машиностроении // Технология легких сплавов. 2015. № 3. С. 32–38.</mixed-citation><mixed-citation xml:lang="en">Zenina M.V. 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