Study of compressed air pressure on the properties of coatings obtained by supersonic metallization
Rakhadilov B. Shynarbek A. Kusainov R. Kakimzhanov D. Ormanbekov K. Zhassulan A.
2024Islamic Azad University
Journal of Theoretical and Applied Physics
2024#18Issue 6
The wear and degradation of machine parts significantly impact industrial efficiency, leading to material loss and increased maintenance costs. Supersonic arc metallization (SAM) is a promising method to improve the surface properties of components by enhancing wear and corrosion resistance. This study aims to optimize the SAM process, particularly compressed air pressure, to improve the mechanical and tribological properties of 30KhGSA steel coatings. 30KhGSA steel wire was used to coat grade 45 steel samples. The effect of varying compressed air pressure was examined through tests on coating porosity, roughness, hardness, corrosion resistance, and adhesion strength. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used for microstructural analysis. Increasing air pressure led to denser coatings with lower porosity and reduced surface roughness. XRD confirmed the presence of iron oxide phases that contribute to increased hardness. Coatings produced at 9 atm displayed superior wear and corrosion resistance, with the highest hardness (331 HV) and lowest friction coefficient. Corrosion tests showed improved resistance due to lower porosity and protective oxide layers. Optimizing compressed air pressure during SAM significantly improves the wear, corrosion resistance, and adhesion strength of 30KhGSA steel coatings, offering enhanced durability for industrial applications.
Coatings , Compressed air pressure , Corrosion resistance , Hardness , Porosity , Supersonic electric arc metallization , Wear resistance
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Shakarim University NJSC, Engineering Center SC, Semey, Kazakhstan
Plasma Science LLP, Ust-Kamenogorsk, Kazakhstan
INNOTECH MASH Engineering Center, Ust-Kamenogorsk, Kazakhstan
Engineering company MetPro LLP, Semey, Kazakhstan
Shakarim University NJSC
Plasma Science LLP
INNOTECH MASH Engineering Center
Engineering company MetPro LLP
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