Structural, mechanical and tribological properties of AlxCr1-xN coatings
Article dans une revue avec comité de lecture
Date
2008Journal
Annales de Chimie - Science des MatériauxAbstract
The aim of this study was to check the influence of Al content into CrN films on their properties. CrAlN films were deposited by reactive magnetron sputtering using chromium and aluminum pure targets. The atomic content of aluminum in CrAlN films was varied from 0 to 51 at. %. It was found that the addition of Al improved the stoichiometry and the structural properties of the films. Indeed, CrAlN morphology was changed from amorphous to columnar structure. The CrAlN films present compressive residual stresses from -1.1 to -3.58 GPa. The maximum value of stress was obtained at 30 at.% of aluminum content in the films. The coatings showed a high hardness and Young's modulus, which varied between 15-36 GPA and 331-520 GPa respectively. The friction coefficient of the CrAlN films varied from 0.55 to 0.7. All the CrAlN films showed a high friction and a high wear resistance as we observed parts of the pin-on-disk ball on their surface.
Files in this item
Collections
Related items
Showing items related by title, author, creator and subject.
-
Communication avec acteAKNOUCHE, Hamid; BENLATRECHE, Yacine; ROUSSELOT, Christophe; PILLOUD, David; ZERIZER, Abdellatif; MARCHAL, Rémy; NOUVEAU, Corinne (2010)Des revêtements à base de nitrure de chrome réalisés par pulvérisation triode ont été testés en déroulage et défonçage du bois. L’efficacité des revêtements triode a été montrée en usinage de MDF (Medium Density Fiberboard), ...
-
Article dans une revue avec comité de lectureBENLATRECHE, Yacine; MARCHAL, Rémy; FERREIRA-MARTIN, Jean-Pierre; AKNOUCHE, Hamid; NOUVEAU, Corinne (Elsevier, 2009)Nowadays, medium density fibreboard (MDF) composite wood is more and more used in the furniture industry to replace bulk wood such as oak, beech, etc. Indeed, this material presents good mechanical properties, is easy to ...
-
Article dans une revue avec comité de lectureBENLATRECHE, Yacine; AKNOUCHE, Hamid; IMHOFF, Luc; MARTIN, Nicolas; GAVOILLE, Joseph; ROUSSELOT, Christophe; RAUCH, Jean-Yves; PILLOUD, David; NOUVEAU, Corinne (Wiley-VCH Verlag, 2009)Nowadays, almost all the cutting tools in metal machining are protected with a surface treatment. Nevertheless, this is not the case in woodmachining where no tools are protected, except by thermal treatments, and so they ...
-
Communication avec acteAKNOUCHE, Hamid; ZERIZER, Abdellatif; BENLATRECHE, Yacine; NOUVEAU, Corinne (Presses Polytechniques et Universitaires Romandes, 2007)This work aims to present an experimental step related to a technique of wood machining in order to evaluate wear for the case of the breaking up of the pine of Alep. In our case the study has been done with one untreated ...
-
Article dans une revue avec comité de lectureTLILI, Brahim; AKNOUCHE, Hamid; BENLATRECHE, Yacine; PATEL, Bhavesh; NOUVEAU, Corinne (Elsevier, 2012)The aim of this study is to compare the properties of CrAlN coatings obtained by magnetron sputtering with one (CrAl) or two targets (Cr and Al). The influence of parameters such as the target bias voltage, the working ...