Effect of Atmospheric Plasma Sprayed TiO2-10% NiAl Cermet Coating Thickness on Cavitation Erosion, Sliding and Abrasive Wear Resistance |
| M. Szalaa, A. Dudekb, A. Maruszczykc, M. Walczaka, d, J. Chmiele, M. Kowalf
aLublin University of Technology, Faculty of Mechanical Engineering, Department of Materials Engineering, Nadbystrzycka St. 36D, 20-618 Lublin, Poland bInstitute of Materials Engineering, Faculty of Production Engineering and Materials Technology, Częstochowa University of Technology, Armii Krajowej St. 19, 42-200 Częstochowa, Poland cFaculty of Mechanical Engineering and Computer Science, Częstochowa University of Technology, Armii Krajowej St. 19, 42-200 Częstochowa, Poland dUniversity of Economics and Innovation in Lublin, Department of Mechanics and Mechanical Engineering, Faculty of Transport and Computer Science, Projektowa St. 4, 20-209 Lublin, Poland eFaculty of Engineering and Economics of Transport, Maritime University of Szczecin, H. Pobożnego St. 11, 70-507 Szczecin, Poland fLublin University of Technology, Faculty of Civil Engineering and Architecture, Nadbystrzycka St. 40, 20-618 Lublin, Poland |
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| Atmospheric plasma spray (APS) wear-resistant coatings are popular in mechanical designing for increasing the operation time of machine elements. APS enables the deposition of ceramic, metallic, and cermet coatings to ameliorate the effects of wear that cause most of the failures of machine elements. The aim of the paper was to investigate the influence of the coating thickness of TiO2-10 wt% NiAl on abrasive, sliding, and cavitation erosion resistance. Titania based coatings were deposited by means of APS onto a mild steel substrate using TiO2-10 wt% NiAl feedstock material. The coatings had thicknesses of approximately 50, 100, and 200 μm. The morphology and microstructure of the coatings were examined using a light optical microscope (LOM) and scanning electron microscope (SEM). The as-deposited surface topography and hardness of the coatings were determined. The porosity and thickness were evaluated by using quantities image analysis software. Cavitation erosion tests were performed according to ASTM G32 (vibratory apparatus) and ASTM G134 (cavitating liquid jet). Abrasive and sliding wear tests were conducted using a three body abrasive tester and ball-on-disc apparatus, respectively. Generally the thickest coating presents an increase in resistance to sliding wear and cavitation erosion over the thinnest cermet coating. |
DOI:10.12693/APhysPolA.136.335 PACS numbers: 47.55.dp, 62.20.Qp, 68.37.Hk, 72.80.Tm, 81.20.-n, 81.40.Pq, 89.20.Kk |