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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">10.17073/0021-3438-2024-4-66-76</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-1648</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>Металловедение и термическая обработка</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Physical Metallurgy and Heat Treatment</subject></subj-group></article-categories><title-group><article-title>Влияние отжигов на формирование структуры и свойств сплава меди, легированного палладием и серебром</article-title><trans-title-group xml:lang="en"><trans-title>Effect of annealing on the structure and properties formation of a copper alloy alloyed with palladium and silver</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0474-8991</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новикова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Оксана Сергеевна Новикова – к.ф.-м.н., ст. науч. сотрудник</p><p>620108, г. Екатеринбург, ул. С. Ковалевской, 18</p></bio><bio xml:lang="en"><p>Oksana S. Novikova – Cand. Sci. (Phys.-Math.), Senior Research Scientist</p><p>18 Kovalevskaya Str., Ekaterinburg 620108</p></bio><email xlink:type="simple">novikova@imp.uran.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/0000-0002-3857-2392</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саламатов</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Salamatov</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Александрович Саламатов – к.ф.-м.н., ст. науч. сотрудник</p><p>620108, г. Екатеринбург, ул. С. Ковалевской, 18</p></bio><bio xml:lang="en"><p>Yuriy A. Salamatov – Cand. Sci. (Phys.-Math.), Senior Research Scientist</p><p>18 Kovalevskaya Str., Ekaterinburg 620108</p></bio><email xlink:type="simple">salamatov@imp.uran.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>Костина</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostina</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алина Евгеньевна Костина – аспирант, мл. науч. сотрудник</p><p>620108, г. Екатеринбург, ул. С. Ковалевской, 18</p></bio><bio xml:lang="en"><p>Alina E. Kostina – Postgraduate Student, Junior Research Scientist</p><p>18 Kovalevskaya Str., Ekaterinburg 620108</p></bio><email xlink:type="simple">alina_30_93@mail.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/0000-0002-0636-6623</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Волков</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkov</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Юрьевич Волков – д.т.н., заведующий лабораторией</p><p>620108, г. Екатеринбург, ул. С. Ковалевской, 18</p></bio><bio xml:lang="en"><p>Aleksey Yu. Volkov – Dr. Sci. (Eng.), Head of the laboratory</p><p>18 Kovalevskaya Str., Ekaterinburg 620108</p></bio><email xlink:type="simple">volkov@imp.uran.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физики металлов им. М.Н. Михеева УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M.N. Mikheev Institute of Metal Physics of Ural Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>20</day><month>12</month><year>2024</year></pub-date><volume>30</volume><issue>4</issue><fpage>66</fpage><lpage>76</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Новикова О.С., Саламатов Ю.А., Костина А.Е., Волков А.Ю., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Новикова О.С., Саламатов Ю.А., Костина А.Е., Волков А.Ю.</copyright-holder><copyright-holder xml:lang="en">Novikova O.S., Salamatov Y.A., Kostina A.E., Volkov A.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/1648">https://cvmet.misis.ru/jour/article/view/1648</self-uri><abstract><p>Методами рентгеноструктурного анализа, измерения микротвердости, удельного электросопротивления и механических свойств при растяжении изучали сплав меди с малыми добавками палладия и серебра: Cu–1,5Pd–3Ag (ат. %), который может найти применение в качестве коррозионно-стойкого проводника слабых электрических сигналов. Исследованы образцы, находящиеся в нескольких исходных состояниях: закаленном (от 700 °C), деформированном при комнатной и криогенной температурах (в обоих случаях – на 90 % изменения площади поперечного сечения). Для изучения процессов перестройки структуры и эволюции свойств проводили отжиги исходных образцов в интервале температур от 150 до 450 °C (с шагом в 50 °C) с последующим охлаждением в воде или на воздухе. Продолжительность термообработок (ТО) составляла от 1 до 48 ч. Установлено, что отжиг сплава Cu–1,5Pd–3Ag в температурном интервале ниже 450 °С приводит к выделению в Cu-матрице частиц фазы на основе серебра. Показано, что отжиг исходно закаленного сплава несколько увеличивает значение его удельного электросопротивления (ρ): от 3,55·10–8 до 3,8·10–8 Ом·м (после t = 250 °С, 48 ч). Выявлено, что легирование меди палладием (1,5 ат. %) и серебром (3 ат. %) обусловливает повышение прочностных свойств (предел текучести сплава составляет 500 МПа) и температуры рекристаллизации, при этом электропроводность сплава составляет ~50 % IACS. Оптимальный набор свойств (прочности, пластичности и электропроводности) наблюдается после отжигов предварительно криодеформированного сплава при t = 250 °С продолжительностью менее 18 ч. Увеличение времени ТО вызывает перестаривание, следствием которого является разупрочнение. Результаты исследования могут быть использованы при разработке нового высокопрочного материала с пониженным электрическим сопротивлением.</p></abstract><trans-abstract xml:lang="en"><p>A copper alloy with small additions of palladium and silver (Cu–1.5Pd–3Ag (at. %))—which has potential applications as a corrosionresistant conductor of weak electrical signals—was studied using X-ray diffraction analysis, microhardness measurements, specific electrical resistivity, and tensile mechanical properties tests. Samples were examined in several initial states: quenched (from 700 °C) and deformed at room and cryogenic temperatures (with a 90 % reduction in cross-sectional area in both cases). To study the processes of structural reorganization and property evolution, the initial samples were annealed in the temperature range from 150 to 450 °C (in 50 °C increments), followed by cooling in water or air. The duration of the heat treatments ranged from 1 to 48 hours. It was established that annealing the Cu–1.5Pd–3Ag alloy at temperatures below 450 °C leads to the precipitation of silver-based phase particles in the Cu matrix. Annealing of the initially quenched alloy was found to slightly increase its specific electrical resistivity (ρ) from 3.55·10–8 to 3.8·10–8 Ohm·m (after 48 h at 250 °C). It was revealed that alloying copper with 1.5 at. % palladium and 3 at. % silver enhances the strength properties (the yield strength of the alloy reaches 500 MPa) and raises the recrystallization temperature, while the electrical conductivity of the alloy remains around 50 % IACS. The optimal combination of properties (strength, ductility, and electrical conductivity) is observed after annealing the pre-cryodeformed alloy at 250 °C for less than 18 h. Extending the annealing time causes overaging, resulting in softening. The results of this study can be applied in the development of a new high-strength material with reduced electrical resistivity.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сплавы Cu–Pd–Ag</kwd><kwd>резистометрия</kwd><kwd>микротвердость</kwd><kwd>микроструктура</kwd><kwd>рентгеноструктурный анализ</kwd><kwd>криодеформация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Cu–Pd–Ag alloys</kwd><kwd>resistometry</kwd><kwd>microhardness</kwd><kwd>microstructure</kwd><kwd>X-ray diffraction analysis</kwd><kwd>cryodeformation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Рентгеноструктурный анализ, а также сканирующая электронная микроскопия проведены с использованием оборудования ЦКП ИФМ УрО РАН.</funding-statement><funding-statement xml:lang="en">X-ray diffraction analysis and scanning electron microscopy were carried out using the equipment of the Center for Collective Use at the Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences.</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">Осинцев О.Е., Федоров В.Н. 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