Vladimir State University named after Alexander and Nikolay Stoletovs, Vladimir, Russia
A. V. Aborkin, Associate Professor, chair for Mechanical Engineering Technology, Candidate of Engineering Sciences, Associate Professor, e-mail: aborkin@vlsu.ru

Aluminum alloy powders AMg6, multi-reinforced with fullerenes C60 and aluminum nitride AlN particles, were synthesized using high-energy mechanical treatment in a planetary mill. The powders were characterized using granulometric analysis, scanning electron microscopy, and X-ray diffraction analysis. The resulting powders are a complex mechanical mixture consisting of agglomerates and free microsized ceramic AlN particles. The products were used for cold gas-dynamic spraying under low pressure conditions at gas flow rates of ~525 and 625 m/s. The effect of gas flow rate and AlN content in the powder mixture on the growth rate and texture formation of coatings during spraying on a steel substrate was studied. It was shown that the gas flow rate affects the coating growth rate to a greater extent than the content of ceramic particles in the powder mixture. It was found that an increase in the gas flow rate from ~525 to ~625 m/s promotes an increase in the spray growth rate by ~1.5–2.3 times. An increase in the degree of deformation of plastic particles of the matrix material with an increase in the collision velocity upon impact with the substrate leads to the formation of a deformation texture of the coating. Quantitative estimates were obtained for the effect of the AlN content in the powder mixture and the gas flow rate during spraying on the share of ceramic particles transferred to the coating. It is suggested that spraying of powder mixtures at a gas flow rate of ~525 m/s ensures the transfer of only ceramic particles contained in agglomerates into the coating. Free ceramic particles of the powder mixture at such a gas flow rate are apparently not fixed in the coating. Increasing the gas flow rate to ~625 m/s promotes the transfer of not only ceramic particles contained in agglomerates into the coating, but also the fixation of free ceramic particles of the powder mixture.
The work was carried out within the framework of the state assignment in the field of scientific activity of the Ministry of Science and Higher Education of the Russian Federation (topic FZUN-2024-0004, state assignment of VlSU).

1. Al-Asadi M. M., Al-Tameem H. A. A review of tribological properties and deposition methods for selected hard protective coatings. Tribology International. 2022. Vol. 176. DOI: 10.1016/j.triboint.2022.107919
2. He L., Hassani M. A Review of the mechanical and tribological behavior of cold spray metal matrix composites. Journal of Thermal Spray Technology. 2020. Vol. 29. pp. 1565–1608.
3. Aleshin N. P., Kobernik N. V., Mikheev R. S., Vaganov V. E. et al. Plasmapowder surfacing of antifriction coatings from babbitt alloys modified with carbon nanotubes. Vestnik mashinostroeniya. 2015. No. 10. pp. 67–72.
4. Mikheev R. S., Kobernik N. V., Kalashnikov I. E., Bolotova L. K., Kobeleva L. I. Tribological properties of antifriction coatings based on composite materials. Perspektivnye materialy. 2015. No. 3. pp. 48–45.
5. Cui S., Miao Q., Liang W., Zhang Z. et al. Tribological behavior of plasmasprayed Al2O3 – 20 wt.%TiO2 coating. Journal of Materials Engineering and Performance. 2017. Vol. 26. pp. 2086–2094.
6. Wood R. J. K., Lu P. Coatings and surface modification of alloys for tribocorrosion applications. Coatings. 2024.Vol. 14. DOI: 10.3390/coatings14010099
7. Poza P., Garrido-Maneiro M. A. Cold-sprayed coatings: microstructure, mechanical properties, and wear behavior. Progress in Materials Science. 2022. Vol. 123. DOI: 10.1016/j.pmatsci.2021.100839
8. Raoelison R. N., Verdy C., Liao H. Cold gas dynamic spray additive manufacturing today: Deposit possibilities, technological solutions and viable applications. Materials and Design. 2017. Vol. 133. pp. 266–287.
9. Yin S., Cavaliere P., Aldwell B., Jenkins R. et al. Cold spray additive manufacturing and repair: Fundamentals and applications. Additive Manufacturing. 2018. Vol. 21. pp. 628–650.
10. Li W., Assadi H., Gaertner F., Yin S. A review of advanced composite and nanostructured coatings by solid-state cold spraying process. Critical Reviews in Solid State and Materials Sciences. 2018. Vol. 44, No. 2. pp. 109–156.
11. Wu J., Fang H., Kim H. J., Lee C. High speed impact behaviors of Al alloy particle onto mild steel substrate during kinetic deposition. Materials Science and Engineering A. 2006. Vol. 417, No. 1–2. pp. 114–119.
12. Papyrin A. Cold spray technology. Advanced Materials and Processes. 2001. Vol. 159. pp. 49–51.
13. Deev V., Prusov E., Rakhuba E. Physical Methods of Melt Processing at Production of Aluminum Alloys and Composites: Opportunities and Prospects of Application. Materials Science Forum. 2019. Vol. 946. pp. 655–660.
14. Vdovin K. N., Dubsky G. A., Deev V. B., Egorova L. G. et al. Influence of a magnetic field on structure formation during the crystallization and physicomechanical properties of aluminum alloys. Russian Journal of Non-Ferrous Metals. 2019. Vol. 60, No. 3. pp. 247–252.
15. Mangalarapu T. B., Kumar S., Ramakrishna M., Gandham P., Suresh K. Precipitation behavior of cold sprayed Al6061 coatings. Materialia (Oxf). 2022. Vol. 24. DOI: 10.2139/ssrn.4058078
16. Hodder K. J., Izadi H., McDonald A. G., Gerlich A. P. Fabrication of aluminum–alumina metal matrix composites via cold gas dynamic spraying at low pressure followed by friction stir processing. Materials Science and Engineering: A. 2012. Vol. 556. pp. 114–121.
17. Sansoucy E., Marcoux P., Ajdelsztajn L., Jodoin B. Properties of SiC-reinforced aluminum alloy coatings produced by the cold gas dynamic spraying process. Surface and Coatings Technology. 2008. Vol. 202, No. 16. pp. 3988–3996.
18. Huang C., List A., Wiehler L., Schulze M., Gärtner F., Klassen T. Cold spray deposition of graded Al – SiC composites. Additive Manufacturing. 2022. Vol. 59. DOI: 10.1016/j.addma.2022.103116
19. Zhao L., Tariq N. U., Ren Y., Liu H. et al. Effect of particle size on ceramic particle content in cold sprayed Al-based metal matrix composite coating. Journal of Thermal Spray Technology. 2022. Vol. 31. pp. 2505–2516.
20. Chesnokov A. E., Smirnov A. V., Klinkov S. V., Kosarev V. F. Preparation of the composite powder Al – B4C by ball milling for cold spray. Journal of Physics Conference Series. 2021. Vol. 1945. DOI: 10.1088/1742-6596/1945/1/012033
21. Balog M., Krizik P., Dvorak J., Bajana O. et al. Industrially fabricated in-situ Al – AlN metal matrix composites (part B): The mechanical, creep, and thermal properties. Journal of Alloys and Compounds. 2022. Vol. 909. DOI: 10.2139/ssrn.4037191
22. Aborkin A. V., Alymov M. I., Arkhipov V. E., Khrenov D. S. Formation of heterogeneous powder coatings with a two-level micro- and nanocomposite structure under conditions of gas-dynamic spraying. DAN. 2018. Vol. 478, No. 6. pp. 637–641.
23. Aborkin A. V., Alymov M. I., Kireev A. V., Sobolkov A. V., Arkhipov V. E. Structure and efficiency of gas-dynamic spraying of hybrid coatings based on a nanocrystalline aluminum matrix. Metallurg. 2018. No. 8. pp. 73–77.
24. Evdokimov I. A., Perfilov S. A., Pozdnyakov A. A., Blank V. D. et al. Nanostructured composite material based on aluminum-magnesium alloy modified with fullerene C60. Fizika i khimiya obrabotki materialov. 2017. No. 1. pp. 47–55.
25. Nam S., Lee S., Roh A., Son H. et al. Role of supersaturated Al – C phases in mechanical properties of Al/fullerene composites. Scientific Reports. 2021. Vol. 11. DOI: 10.1038/s41598-021-92551-y
26. Gerashchenkov D. A. Development of a technological process for applying coatings by the method of «cold» gas-dynamic spraying based on reinforced powders of the Al–Sn+Al2O3 system: Dissertation … of Candidate of Engineering Sciences. Saint Petersburg, 2015. 172 p.
27. Aborkin A., Babin D., Belyaev L., Bokaryov D. Enhancing the microhardness of coatings produced by cold gas dynamic spraying through multireinforcement with aluminum powders containing fullerenes and aluminum nitride. Journal of Manufacturing and Materials Processing. 2023. Vol. 7, Iss. 6. DOI: 10.3390/jmmp7060203
28. Popov V. X-ray micro-absorption enhancement for non-agglomerated nanodiamonds in mechanically alloyed aluminium matrix composites. Phys Status Solidi A. 2015. Vol. 212. pp. 2722–2726.
29. Aborkin A. V., Khorkov K. S., Obyedkov A. M. et al. Evolution of multiwalled carbon nanotubes and hybrid nanostructures on their base in the process of obtaining aluminum-matrix composite materials. Pisma v ZhTF. 2019. Vol. 45, Iss. 2. pp. 22–25.