Experimental investigation on the effect of ceramic coating on the wear resistance of Al6061 substrate
| Autor: | Venkatachalam Ramasamy, Subburam Venkatajalapathy, Suresh Chinnusamy, Gobinath Velu Kaliyannan, Sathish Kumar Palaniappan |
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| Rok vydání: | 2019 |
| Předmět: |
lcsh:TN1-997
Materials science 02 engineering and technology Substrate (electronics) engineering.material 01 natural sciences Indentation hardness Biomaterials Coating 0103 physical sciences Ceramic Composite material Thermal spraying lcsh:Mining engineering. Metallurgy 010302 applied physics Metals and Alloys Adhesion 021001 nanoscience & nanotechnology Surfaces Coatings and Films Field emission microscopy visual_art Service life Ceramics and Composites engineering visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Journal of Materials Research and Technology, Vol 8, Iss 6, Pp 6125-6133 (2019) |
| ISSN: | 2238-7854 |
| DOI: | 10.1016/j.jmrt.2019.10.007 |
| Popis: | In the present research work, various ceramic materials such as Al2O3 - Cr2O3 - SiC, and Al2O3 - ZrO2 - TiO2 were developed for the analysis of wear performance and hardness. The specimens were coated using plasma spray coating technique. A bond coat of 50 μm thickness was applied on the substrate using NiCrAlY for good adhesion before laying the top coat. The wear behaviour and hardness of the samples were investigated by wear and hardness tests. The Energy Dispersive X-ray Analysis (EDAX) was performed to analyse the chemical composition of the samples. The Field Emission Scanning Electron Microscope (FE-SEM) was used to analyse the surface and cross-section of the samples. X-ray diffraction (XRD) studies are carried out to understand the structural and crystallographic information. The performances of the coated and uncoated samples were compared and investigated. It was observed that the specimen with Al2O3 (60%) + ZrO2 (20%) + TiO2 (20%) coating produced best results for wear rate (0.03612 mm3/Nm) and Coefficient of friction (0.357). The proposed ceramic coating composition could be recommended for automobile components that require good wear and heat resistance to improve the service life. Keywords: Aluminium alloy 6061, Plasma spray coating, Ceramics, Wear rate, Hardness, Coefficient friction |
| Databáze: | OpenAIRE |
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