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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bello, J. O.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2010Electrodeposition and tribological characterisation of nickel nanocomposite coatings reinforced with nanotubular titanatescitations
- 2009Wireline wear resistance of filled and unfilled polymeric coatings for downhole applicationscitations
- 2007Synergistic effects of micro-abrasion–corrosion of UNS S30403, S31603 and S32760 stainless steelscitations
- 2005Micro-abrasion of filled and unfilled polyamide 11 coatingscitations
- 2003Grooving micro-abrasion of polyamide 11 coated carbon steel tubulars for downhole applicationcitations
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article
Micro-abrasion of filled and unfilled polyamide 11 coatings
Abstract
In this study, five polyamide (PA11) based coatings have been investigated; two filled with different types of solid fillers (TiO<sub>2</sub>) and in different proportions, and two unfilled coatings, deposited onto carbon steel substrates. Tests were conducted using a Phoenix Tribology TE99 micro-abrasion tester. A 25 mm diameter hardened and pitted carbon steel ball was loaded against the sample and rotated in the presence of 5 µm silicon carbide (SiC) abrasive slurry with a solids concentration of 0.375 g/cm<sup>3</sup>. Tests were conducted under optimum conditions for grooving (two-body) abrasion.<br/>The wear rates are presented as a function of load, total sliding distance and mechanical properties of the coating. The influence on coating performance of air-cooling and water-cooling the coating after deposition is explored. The unfilled coatings exhibited a specific wear rate (k) about 1.3 times lower than the filled coatings. The results, contrary to expectations, show that the fillers do not act as load-bearing elements within the coating matrix. The value of k decreased with increasing load for all the coatings but an irregular trend in k was observed as a function of sliding distance. Detailed scanning electron microscopy was performed on the wear scars to identify the wear mechanisms and the role of the fillers.