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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">kaz44</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Университета Шакарима. Серия технические науки</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Shakarim University. Technical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2788-7995</issn><issn pub-type="epub">3006-0524</issn><publisher><publisher-name>«Шәкәрім университеті» КеАҚ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.53360/2788-7995-2024-4(16)-49</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz44-1575</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>ХИМИЧЕСКАЯ ТЕХНОЛОГИЯ (ОРИГИНАЛЬНАЯ СТАТЬЯ)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMICAL TECHNOLOGY (ORIGINAL ARTICLE)</subject></subj-group></article-categories><title-group><article-title>ДОЛГОВЕЧНОСТЬ И КОРРОЗИОННОЕ ПОВЕДЕНИЕ ДЕТОНАЦИОННЫХ ПОКРЫТИЙ Ni-Cr-Al ПРИ ВОЗДЕЙСТВИИ Na2SO4/NaCl</article-title><trans-title-group xml:lang="en"><trans-title>DURABILITY AND CORROSION BEHAVIOR OF Ni-Cr-Al DETONATION COATINGS UNDER Na2SO4/NaCl EXPOSURE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1570-0301</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маулет</surname><given-names>М.</given-names></name><name name-style="western" xml:lang="en"><surname>Maulet</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Меруерт Маулет – старший научный сотрудник Научно-исследовательского центра «Инженерия поверхности и трибология»</p><p>070002, Казахстан, Усть-Каменогорск, ул. Шакарима 148 </p></bio><bio xml:lang="en"><p>Meruyert Maulet – senior researcher of Scientific Research Center «Surface Engineering and Tribology» </p><p> 070002, Kazakhstan, Ust-Kamenogorsk, st. Shakarima 148 </p></bio><email xlink:type="simple">maulet_meruert@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/0000-0003-2428-4952</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Азлан</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Azlan</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мухаммад Нуразлан Бин Абд Азис – доктор философии, преподаватель факультета естественных наук и математики</p><p>35900, Малайзия, Перак, Танджунг Малим </p></bio><bio xml:lang="en"><p>Muhammad Noorazlan Bin Abd Azis – PhD, A lecturer from the Faculty Of Science And Mathematics </p><p> 35900, Malaysia, Perak, Tanjung Malim  </p></bio><email xlink:type="simple">azlanmn@fsmt.upsi.edu.my</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-3136-0535</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Болатов</surname><given-names>С. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Bolatov</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санжар Дауренулы Болатов – младший научный сотрудник Научно-исследовательского центра «Инженерия поверхности и трибология»</p><p>070002, Казахстан, Усть-Каменогорск, ул. Шакарима 148 </p></bio><bio xml:lang="en"><p>Sanzhar Daurenuly Bolatov – junior researcher of Scientific Research Center «Surface Engineering and Tribology» </p><p>070002, Kazakhstan, Ust-Kamenogorsk, st. Shakarima 148 </p></bio><email xlink:type="simple">sanzharbolatov94@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-7644-4527</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алибекова</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Alibekova</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Балым Алибековна Алибекова – инженер-исследователь Научно-исследовательского центра «Инженерия поверхности и трибология» </p><p>070002, Казахстан, Усть-Каменогорск, ул. Шакарима 148 </p></bio><bio xml:lang="en"><p>Balym Alibekovna Alibekova – engineer researcher of Scientific Research Center «Surface Engineering and Tribology» </p><p>070002, Kazakhstan, Ust-Kamenogorsk, st. Shakarima 148 </p></bio><email xlink:type="simple">balymalibekova304@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">С. Аманжолов Восточно-Казахстанский университет<country>Казахстан</country></aff><aff xml:lang="en">Sarsen Amanzholov East Kazakhstan University<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Пендидиканский Университет Султан Идрис<country>Малайзия</country></aff><aff xml:lang="en">Universiti Pendidikan Sultan Idris<country>Malaysia</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>27</day><month>12</month><year>2024</year></pub-date><volume>1</volume><issue>4(16)</issue><fpage>389</fpage><lpage>394</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Маулет М., Азлан М.Н., Болатов С.Д., Алибекова А.Б., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Маулет М., Азлан М.Н., Болатов С.Д., Алибекова А.Б.</copyright-holder><copyright-holder xml:lang="en">Maulet M., Azlan M.N., Bolatov S., Alibekova 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://tech.vestnik.shakarim.kz/jour/article/view/1575">https://tech.vestnik.shakarim.kz/jour/article/view/1575</self-uri><abstract><p>В данном исследовании изучается долговечность и коррозионная стойкость покрытий NiCr-Al, нанесённых методом детонационного напыления, при воздействии высокотемпературных сред, содержащих расплавленные Na₂SO₄ и NaCl. Эти условия высокоагрессивны и часто встречаются в аэрокосмической, энергетической и химической промышленности. Проведен сравнительный анализ градиентных и однородных покрытий Ni-Cr-Al для понимания их поведения в агрессивных средах. Результаты показывают, что градиентные покрытия демонстрируют превосходную коррозионную стойкость. В отличие от этого, однородные покрытия подвергались значительной деградации, включая обширную коррозию, деламинацию и образование фаз, содержащих натрий, таких как NaNiO₂. Рентгенофазовый анализ подтвердил наличие продуктов окисления и сульфидации, при этом градиентные покрытия продемонстрировали повышенную стабильность к фазовым переходам. Эти результаты подчеркивают потенциал градиентных покрытий Ni-Cr-Al для улучшения работы компонентов в экстремальных условиях и предоставляют ценные данные для оптимизации состава и технологий нанесения покрытий.</p></abstract><trans-abstract xml:lang="en"><p>This study investigates the durability and corrosion resistance of Ni-Cr-Al detonation-sprayed coatings when exposed to high-temperature environments containing molten Na₂SO₄ and NaCl. Such conditions are highly corrosive and frequently encountered in aerospace, energy, and chemical industries. Gradient and homogeneous Ni-Cr-Al coatings were compared to understand their behavior under aggressive exposure. The reveal of results those gradient coatings exhibit superior corrosion resistance due to their ability to retain protective oxides, such as Cr₂O₃, and mitigate stress-induced damage through compositional grading. In contrast, homogeneous coatings displayed significant degradation, including widespread corrosion, delamination, and the formation of sodium-based phases like NaNiO₂. XRD analysis confirmed the presence of oxidation and sulfidation products, with gradient coatings showing enhanced stability against phase transitions. These findings highlight the potential of gradient Ni-Cr-Al coatings to improve component performance in extreme conditions and provide valuable insights for optimizing coating compositions and processes to enhance operational reliability in harsh environments.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>детонационное напыление</kwd><kwd>покрытия Ni-Cr-Al</kwd><kwd>соли Na₂SO₄/NaCl</kwd><kwd>градиентные покрытия</kwd><kwd>агрессивная среда</kwd></kwd-group><kwd-group xml:lang="en"><kwd>detonation spraying</kwd><kwd>NiCr-Al coatings</kwd><kwd>Na₂SO₄/NaCl salts</kwd><kwd>gradient coatings</kwd><kwd>aggressive environment</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">A comprehensive study on hot corrosion resistance of NiCoCrAlYTa and NiCrAl thermal-sprayed coatings for CSP applications / А. 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