Study of agglomerated TiO2 and TiO2+Cr2O3 nanocoatings deposited by air plasma spraying on erosion wear
Rakhadilov B. Erdogan G. Turar Z. Kakimzhanov D.
2025Politechnika Lubelska
Advances in Science and Technology Research Journal
2025#19Issue 12100 - 108 pp.
In this study, agglomerated TiO2 and TiO2 nanopowders with Cr2O2 addition were tested for erosive wear in a slurry environment. Their abrasiveness, mass loss, and volume loss were investigated. The slag slurry was sieved to an average particle size of 450–515 μm, and media containing 10 wt% slag were prepared. Experiments were conducted at particle velocities of 2 m/s and 4 m/s with normal impact angles (90°). The results revealed that TiO2+Cr2O2 nanocoatings exhibited approximately 25% higher resistance to erosive wear compared to pure TiO2 coatings. Moreover, wear increased with rotational speed, highlighting the influence of mechanical conditions on coating performance. Overall, the addition of Cr2O2 significantly enhanced the mechanical stability and durability of the coatings. These findings provide important insights into the wear mechanisms of nanopowder-based coatings and demonstrate the potential of TiO2+CrCr2O2 systems for improving the performance and service life of components operating under high-wear conditions, particularly in industries involving abrasive slurry flows and particulate impact, such as mining, energy, and chemical processing.
agglomeration , coatings , erosion wear , plasma spraying , structure
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PlasmaScience LLP, Ust-Kamenogorsk, 070000, Kazakhstan
Sakarya University, Thermal Spray Research and Application Laboratory, Sakarya, 54050, Turkey
PlasmaScience LLP
Sakarya University
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