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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">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.56304/S2079562922050190</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-172</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>Твердые тела в экстремальных условиях</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Solids Under Extreme Conditions</subject></subj-group></article-categories><title-group><article-title>Определение размеров зоны упрочнения по температурным полям в процессе лазерной обработки</article-title><trans-title-group xml:lang="en"><trans-title>Determining the Size of the Hardening Zone by Temperature Fields During Laser Processing</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>Ишкиняев</surname><given-names>Э. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Ishkinyaev</surname><given-names>E. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фрязино, 141195;</p><p>Москва, 115409</p></bio><bio xml:lang="en"><p>Fryazino, 141195;</p><p>Moscow, 115409</p></bio><email xlink:type="simple">ishkinyaev.emil@gmail.com</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>Хриптович</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khriptovich</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фрязино, 141195;</p><p>Москва, 105005</p></bio><bio xml:lang="en"><p>Fryazino, 141195;</p><p>Moscow, 105005</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воронов</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Voronov</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фрязино, 141195;</p><p>Москва, 115409</p></bio><bio xml:lang="en"><p>Fryazino, 141195;</p><p>Moscow, 115409</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>Петровский</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrovskiy</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 115409</p></bio><bio xml:lang="en"><p>Moscow, 115409</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шиганов</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shiganov</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 105005</p></bio><bio xml:lang="en"><p>Moscow, 105005</p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО Научно-технического объединение “ИРЭ-Полюс”;&#13;
Национальный исследовательский ядерный университет “МИФИ”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>IPG IRE-Polus;&#13;
National Research Nuclear University (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО Научно-технического объединение “ИРЭ-Полюс”;&#13;
Москвоский государственный технический университет им. Н.Э. Баумана</institution><country>Россия</country></aff><aff xml:lang="en"><institution>IPG IRE-Polus;&#13;
Bauman Moscow State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет “МИФИ”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Москвоский государственный технический университет им. Н.Э. Баумана</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bauman Moscow State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>31</day><month>12</month><year>2023</year></pub-date><volume>14</volume><issue>3</issue><fpage>289</fpage><lpage>295</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ишкиняев Э.Д., Хриптович Е.В., Воронов В.Д., Петровский В.Н., Шиганов И.Н., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Ишкиняев Э.Д., Хриптович Е.В., Воронов В.Д., Петровский В.Н., Шиганов И.Н.</copyright-holder><copyright-holder xml:lang="en">Ishkinyaev E.D., Khriptovich E.V., Voronov V.D., Petrovskiy V.N., Shiganov I.N.</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://npe.elpub.ru/jour/article/view/172">https://npe.elpub.ru/jour/article/view/172</self-uri><abstract><p>Получение однородной закалки приповерхностной области на заданную глубину требует точного подбора и контроля параметров излучения в зависимости от геометрии и свойств детали. Так как лазерная закалка производится локально с пошаговой обработкой всей поверхности, аккумулированное тепло приводит к росту глубины закалки и оплавлению. Во избежание неравномерности по глубине необходимо варьировать технологические параметры в процессе обработки для поддержания стационарного нагрева материала. Экспериментальный подбор режимов обычно занимает чрезмерное количество времени и материальных ресурсов. В данной статье представлена методика математического моделирования процесса закалки высокоуглеродистой стали путем расчета температурных полей, индуцированных лазерным излучением. Граница зоны закалки определялась по изотерме, соответствующей критической температуре аустенизации в соответствии со скоростью охлаждения. Экспериментальная верификация модели проведена на инструментальных сталях с содержаниями углерода 0.7 и 1.2%. Показано влияние основных технологических параметров процесса обработки (мощность излучения, диаметр лазерного пятна, скорость обработки) на глубину и ширину зоны закалки. В работе также представлено применение построенной модели для подбора режимов многопроходной закалки на постоянную глубину без оплавления. Также рассмотрен эффект разупрочнения закаленной области вследствие повторного нагрева при многопроходной обработке.</p></abstract><trans-abstract xml:lang="en"><p>Obtaining a uniform hardening of the near-surface area to a given depth requires precise selection and control of laser radiation parameters, depending on the part geometry and its properties. Since laser irradiation is performed locally with step-by-step processing of the entire surface, the accumulated heat leads to an increase in the hardening depth and surface melting. In order to avoid depth unevenness, it is necessary to vary laser energy supply during processing to maintain a stationary heating of the material. Experimental selection of technological parameters usually takes an excessive amount of time and material resources. This article presents a technique of mathematical modeling of the high-carbon tool steels hardening process by calculating the temperature fields induced by laser radiation. The boundary of the hardening zone was determined as the isotherm of the corresponding austenitizing critical temperature in accordance with the heating rate. Experimental verification of the model was carried out on tool steels with carbon content of 0.7% and 1.2%. The influence of the main processing technological parameters (radiation power, laser spot diameter and scanning speed) on the hardening zone size is shown. The paper also presents the use of the built model for selection of the technological parameters of multi-track treatment to harden material to a constant depth without surface melting. The effect of back tempering in overlapped regions is also considered.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лазерная закалка</kwd><kwd>теплопроводность</kwd><kwd>компьютерное моделирование</kwd><kwd>инструментальные стали</kwd><kwd>отпуск мартенсита</kwd></kwd-group><kwd-group xml:lang="en"><kwd>laser hardening</kwd><kwd>heat transfer</kwd><kwd>computer modeling</kwd><kwd>tool steels</kwd><kwd>back tempering</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">Klocke F., Schulz M., Gräfe S. // Coatings. 2017. V. 7 (6). P. 77. https://doi.org/10.3390/coatings7060077</mixed-citation><mixed-citation xml:lang="en">Klocke F., Schulz M., Gräfe S. // Coatings. 2017. V. 7 (6). 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