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7360 |
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Deposition optimization and tribological behavior of thermally sprayed wear resistant coatings |
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Ilias Georgiopoulos / MIRTEC S.A., Greece IOANNIS-PANAGIOTIS Patrikalos / MIRTEC S.A, GREECE PETROS UIoannoui/ MIRTEC S.A, GREECE CONSTANTINA Andreouli/ MIRTEC S.A, GREECE |
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The need for wear resistant coatings in a wide range of industrial applications is continuously increasing. Thermal spraying provides the flexibility of being suitable to deposit a wide range of materials (alloys, ceramics, cermets, composites etc) on large surfaces with complex geometry simultaneously being a low cost technique compared to others. For those reasons thermal spray coatings are used to prolong the service life and/or dimension restoration of different worn components. These layers aim to prevent different types and mechanisms of wear such as abrasion, sliding wear, corrosive wear, erosion and their combinations. Furthermore, coatings deposited using thermal spray techniques can be used as a viable alternative to the environmentally harmful electrolytic hard chrome plating. In this study the results of Atmospheric Plasma Spraying deposition parameters optimization of different alloys (Ni and Mo based) and cermet (WC-Co, Cr2C3-NiCr) coatings are presented. Correlation of the factors and mechanisms that significantly affect their tribological behavior with the deposition parameters is also performed. This research has been co?financed by the European Regional Development Fund of the European Union and Greek national funds through the Operational Program Competitiveness, Entrepreneurship and Innovation, under the call Targeted Activities: “AQUACULTURE” – “INDUSTRIAL MATERIALS” – “OPEN INNOVATION IN CULTURAL ACTIVITIES” (National project code: T6???-00350) |