vrgupВестник Ростовского государственного университета путей сообщенияVestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya0201-727XРостовский государственный университет путей сообщения10.46973/0201-727X_2025_1_17vrgup-98Research ArticleМАШИНОСТРОЕНИЕMECHANICAL ENGINEERINGЛазерная постобработка керамических и карбидовольфрамовых HVOF-покрытийLaser postprocessing of ceramic and tungsten carbide HVOF coatingsАнтошинИ. А.AntoshinI. A.

Антошин Илья Александрович, аспирант

Antoshin Ilya Aleksandrovich, Postgraduate Student

ilyaantoshin16@mail.ruЯреськоС. И.YareskoS. I.

Яресько Сергей Игоревич, доктор технических наук, заведующий лабораторией лазерно-индуцированных процессов

Yaresko Sergey Igorevich, Doctor of Engineering Sciences, Professor, Head of the Laboratory of Laser-Induced Processes (LLIP)

yarsi54@gmail.comСамарский государственный технический университет (СГТУ)Samara State Technical University (SSTU)Самарский филиал Физического института им. П. Н. Лебедева РАНSamara Branch of P. N. Lebedev Physical Institute of the Russian Academy of Sciences202530032025011725Copyright © Антошин И.А., Яресько С.И., 20252025Антошин И.А., Яресько С.И.Antoshin I.A., Yaresko S.I.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestnik.rgups.ru/jour/article/view/98

Проведен анализ современного состояния исследований в области лазерной постобработки керамических и карбидовольфрамовых покрытий, наносимых с помощью технологий газотермического напыления (ГТН). Показано, что наиболее целесообразна лазерная обработка с оплавлением поверхности. Лазерный переплав позволяет получать покрытия с улучшенными прочностными свойствами. Установлено значительное изменение структуры газотермических покрытий (ГТП), снижение дисперсности и порообразования, повышение их эксплуатационных характеристик, таких как износостойкость, твердость, коррозионная стойкость. Указаны причины наблюдаемых изменений структурных и прочностных характеристик покрытий после лазерной термообработки (ЛТО) HVOF-покрытий с переплавом, даны рекомендации по выбору режимов обработки.

The article analyzes the current state of research in the field of laser post-processing of ceramic and tungsten carbide coatings applied using thermal spraying (TS) technologies. It is shown that laser processing with surface melting is the most appropriate. Laser remelting makes it possible to obtain coatings with improved strength properties. It was found that the structure of thermal spray coatings (TSC) changed significantly, the dispersion and porosity decreased, and their performance characteristics, such as wear resistance, hardness, and corrosion resistance, increased. The reasons for the observed changes in the structural and strength characteristics of coatings after laser heat treatment (LHT) of HVOF coatings with remelting are indicated and recommendations for choosing processing modes are given.

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The authors declare that there are no conflicts of interest present.