Alexis, Joël and Gaussens, Clélia and Etcheverry, Bernard and Bonino, Jean-Pierre Development of nickel phosphorus coatings containing micro particles of talc phyllosilicates. (2013) Materials Chemistry and Physics (137 ). 723-733. ISSN 0254-0584
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Official URL: http://dx.doi.org/10.1016/j.matchemphys.2012.09.049
Abstract
The present work aims to characterized nickel phosphorus coatings co-deposited with talc particles on steel. The NiP-talc composite deposits were developed to serve as hard coatings with a lubricating effect at 600 C. This process, which is free of hexavalent chromium, could provide a reliable substitute for the electrodeposition of hard chromium coating used in industrial applications. Local responses to static and dynamic mechanical loading have been obtained by nano- and microhardness, microtensile and nanoscratch testing. The hardness and stiffness values slightly decrease when the amount of talc increases for untreated coatings. In contrast, a 420 C heat treatment leads to high hardness and Young’s modulus values due to crystallization. Moreover, a 600 C heat treatment lowers these values through overageing. A 420 C heat treatment greatly improves the adherence and the cohesion of the coatings containing talc.
Item Type: | Article |
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Additional Information: | Thanks to Elsevier editor. The definitive version is available at : http://dx.doi.org/10.1016/j.matchemphys.2012.09.049 |
HAL Id: | hal-00828234 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) Other partners > ALSTOM Transport (FRANCE) |
Laboratory name: | |
Funders: | Conseil Régional de Midi Pyrénées (France) |
Statistics: | download |
Deposited On: | 27 Feb 2013 09:42 |
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