http://hdl.handle.net/10985/189 Mon, 06 Apr 2026 13:43:17 GMT 2026-04-06T13:43:17Z https://sam.ensam.eu:443/bitstream/id/5664ef77-02ed-4ffd-914d-d417b374d266/ http://hdl.handle.net/10985/189 http://hdl.handle.net/10985/11968 Structural and mechanical properties of Cr–Zr–N coatings with different Zr content AISSANI, Linda; FELLAH, Mamoun; SAMAD, Mohamed Abdul; IOST, Alain; NOUVEAU, Corinne; MONTAGNE, Alex Cr–Zr–N films have been synthesised using R.F reactive magnetron sputtering system on Si (100) wafer and XC100 steel substrate without heating. The structural, mechanical and friction coefficient evolution as a function of the Zr content were investigated by XRD, (EDS, WDS), WPS, XPS, SEM, AFM, nanoindentation, Scratch adhesion and pin-on-disc sliding wear tests. The results show, that, with increasing Zr content, the film structure changed with the coexistence of (Cr–N, Zr–N) crystallographic orientation mixture. The films formed a (Cr, Zr) N solid solution where Zr atoms substitute Cr atoms. CrN lattice parameter increased from 4.17 to 4.32 Å with the crystallite size refinement. The mechanical parameters (H, σ, E, H/E and H3/ E2) were significantly improved in comparison to binary films, especially at 29 at.-% Zr. The friction and wear behaviour of the Cr–Zr (29 at.-% Zr)–N coating also showed a significant improvement. Sun, 01 Jan 2017 00:00:00 GMT http://hdl.handle.net/10985/11968 2017-01-01T00:00:00Z AISSANI, Linda FELLAH, Mamoun SAMAD, Mohamed Abdul IOST, Alain NOUVEAU, Corinne MONTAGNE, Alex Cr–Zr–N films have been synthesised using R.F reactive magnetron sputtering system on Si (100) wafer and XC100 steel substrate without heating. The structural, mechanical and friction coefficient evolution as a function of the Zr content were investigated by XRD, (EDS, WDS), WPS, XPS, SEM, AFM, nanoindentation, Scratch adhesion and pin-on-disc sliding wear tests. The results show, that, with increasing Zr content, the film structure changed with the coexistence of (Cr–N, Zr–N) crystallographic orientation mixture. The films formed a (Cr, Zr) N solid solution where Zr atoms substitute Cr atoms. CrN lattice parameter increased from 4.17 to 4.32 Å with the crystallite size refinement. The mechanical parameters (H, σ, E, H/E and H3/ E2) were significantly improved in comparison to binary films, especially at 29 at.-% Zr. The friction and wear behaviour of the Cr–Zr (29 at.-% Zr)–N coating also showed a significant improvement. http://hdl.handle.net/10985/19636 Effect of annealing treatment on the microstructure, mechanical and tribological properties of chromium carbonitride coatings AISSANI, Linda; FELLAH, Mamoun; RADJEHI, Lamia; ALHUSSEIN, Akram; NOUVEAU, Corinne; MONTAGNE, Alex Chromium nitrides were deposited by RF reactive magnetron sputtering from a Cr target on high carbon steel substrates XC100 (1.17 wt% carbon) in a N2 and Ar gas mixture. In order to investigate the formation of chromium nitrides, carbide and carbonitride compounds were subjected to vacuum annealing treatment for 1 h at various temperatures ranging from 700 to 1000 °C. The samples were characterized by EDS, XPS, XRD, SEM, nanoindentation and tribometry. The results showed the emergence of Cr2N and CrN during the early stages of annealing and the appearance of chromium carbonitride phases only at 900 °C. The (111) preferred orientation of the fcc CrN phase was changed to (002) at 900 °C in parallel with the appearance of chromium carbides. Nanoindentation tests revealed a gradual increase of the Young's modulus from 198 to 264 GPa when increasing the annealing temperature, while the hardness showed a maximum value (H = 22.4 GPa) at 900 °C. The low friction coefficient of the Crsingle bondCsingle bondN coating against a 100Cr6 ball was approximately 0.42 at 900 °C. The enhancement of mechanical and tribological properties was attributed to the stronger bonding Crsingle bondC at the CrN/XC100 interfaces as confirmed by XPS results. Tue, 01 Jan 2019 00:00:00 GMT http://hdl.handle.net/10985/19636 2019-01-01T00:00:00Z AISSANI, Linda FELLAH, Mamoun RADJEHI, Lamia ALHUSSEIN, Akram NOUVEAU, Corinne MONTAGNE, Alex Chromium nitrides were deposited by RF reactive magnetron sputtering from a Cr target on high carbon steel substrates XC100 (1.17 wt% carbon) in a N2 and Ar gas mixture. In order to investigate the formation of chromium nitrides, carbide and carbonitride compounds were subjected to vacuum annealing treatment for 1 h at various temperatures ranging from 700 to 1000 °C. The samples were characterized by EDS, XPS, XRD, SEM, nanoindentation and tribometry. The results showed the emergence of Cr2N and CrN during the early stages of annealing and the appearance of chromium carbonitride phases only at 900 °C. The (111) preferred orientation of the fcc CrN phase was changed to (002) at 900 °C in parallel with the appearance of chromium carbides. Nanoindentation tests revealed a gradual increase of the Young's modulus from 198 to 264 GPa when increasing the annealing temperature, while the hardness showed a maximum value (H = 22.4 GPa) at 900 °C. The low friction coefficient of the Crsingle bondCsingle bondN coating against a 100Cr6 ball was approximately 0.42 at 900 °C. The enhancement of mechanical and tribological properties was attributed to the stronger bonding Crsingle bondC at the CrN/XC100 interfaces as confirmed by XPS results. http://hdl.handle.net/10985/20256 Relationship between structure, surface topography and tribo-mechanical behavior of Ti-N thin films elaborated at different N2 flow rates AISSANI, Linda; ALHUSSEIN, Akram; AYAD, Abdelhak; ZGHEIB, Elia; BELGROUNE, Ahlam; ZAABAT, Mourad; BARILLE, Régis; NOUVEAU, Corinne Titanium nitride films were deposited by reactive magnetron sputtering on Si (100) wafers, glass and Ti6Al4V substrates. The film deposition was carried out in a gas mixture of Ar and N2. The nitrogen content was varied between 0 and 30 % of the total gas mixture. This variation led to the formation of different films with different microstructures. The microstructure of the Ti-N coatings presented nanocomposites with a low tendency to surface oxidation. From a pure Ti to tetragonal Ti2N and cubic Ti-N microstructures, the films showed a (111) TiN plane growth that led to an increase in the lattice strain and a decrease in the grain size when increasing the nitrogen flow rate. The water-film contact angle measurements showed that the surface hydrophobicity increased with the increase of nitrogen content in the film. Mechanical properties were measured and a strong dependence between microstructure and hardness was found. The Ti-N deposited under 20 % of N2 exhibited the highest hardness, the best adhesion and wear resistance, and the lowest friction coefficient with the presence of (111) fiber texture. Fri, 01 Jan 2021 00:00:00 GMT http://hdl.handle.net/10985/20256 2021-01-01T00:00:00Z AISSANI, Linda ALHUSSEIN, Akram AYAD, Abdelhak ZGHEIB, Elia BELGROUNE, Ahlam ZAABAT, Mourad BARILLE, Régis NOUVEAU, Corinne Titanium nitride films were deposited by reactive magnetron sputtering on Si (100) wafers, glass and Ti6Al4V substrates. The film deposition was carried out in a gas mixture of Ar and N2. The nitrogen content was varied between 0 and 30 % of the total gas mixture. This variation led to the formation of different films with different microstructures. The microstructure of the Ti-N coatings presented nanocomposites with a low tendency to surface oxidation. From a pure Ti to tetragonal Ti2N and cubic Ti-N microstructures, the films showed a (111) TiN plane growth that led to an increase in the lattice strain and a decrease in the grain size when increasing the nitrogen flow rate. The water-film contact angle measurements showed that the surface hydrophobicity increased with the increase of nitrogen content in the film. Mechanical properties were measured and a strong dependence between microstructure and hardness was found. The Ti-N deposited under 20 % of N2 exhibited the highest hardness, the best adhesion and wear resistance, and the lowest friction coefficient with the presence of (111) fiber texture. http://hdl.handle.net/10985/11795 Influence of vanadium on structure, AISSANI, Linda; WALOCK, Michael J.; DJEBAILI, Hamid; DJELLOUL, Ahmed Daoud; NOUVEAU, Corinne This work aims to show the characterisation of Cr–V–N coatings, with the varied amounts of Cr and V. CrN, VN and Cr–V–N coatings were deposited onto silicon and XC100 steel substrates by reactive radio frequency magnetron sputtering and characterised with X-ray diffraction, X-ray photoelectron spectroscopies, energy dispersive X-ray spectroscopy, scanning electron microscopy, nanoindentation, pin on disc tribological tests and scratch tests. The residual stress was calculated using the Stoney formula. Compared to the CrN system, the Cr–V–N films presented a rough surface based on pyramidal morphology. A hardness of 19?53 GPa and a friction coefficient of 0?55 were obtained for CrN; in contrast, Cr–V–N coatings presented a weak hardness of 6?23 GPa. In the case of wear against a 100Cr6 ball, the Cr–V–N films were completely removed from the substrate, even though the Cr–V–N coating presented a low friction coefficient (0?39). However, the VN film showed good tribological performance. Thu, 01 Jan 2015 00:00:00 GMT http://hdl.handle.net/10985/11795 2015-01-01T00:00:00Z AISSANI, Linda WALOCK, Michael J. DJEBAILI, Hamid DJELLOUL, Ahmed Daoud NOUVEAU, Corinne This work aims to show the characterisation of Cr–V–N coatings, with the varied amounts of Cr and V. CrN, VN and Cr–V–N coatings were deposited onto silicon and XC100 steel substrates by reactive radio frequency magnetron sputtering and characterised with X-ray diffraction, X-ray photoelectron spectroscopies, energy dispersive X-ray spectroscopy, scanning electron microscopy, nanoindentation, pin on disc tribological tests and scratch tests. The residual stress was calculated using the Stoney formula. Compared to the CrN system, the Cr–V–N films presented a rough surface based on pyramidal morphology. A hardness of 19?53 GPa and a friction coefficient of 0?55 were obtained for CrN; in contrast, Cr–V–N coatings presented a weak hardness of 6?23 GPa. In the case of wear against a 100Cr6 ball, the Cr–V–N films were completely removed from the substrate, even though the Cr–V–N coating presented a low friction coefficient (0?39). However, the VN film showed good tribological performance. http://hdl.handle.net/10985/19686 Evolution of microstructure, mechanical and tribological properties of vanadium carbonitride coatings sputtered at different nitrogen partial pressures AISSANI, Linda; ALHUSSEIN, Akram; RADJEHI, Lamia; LAKDHAR, Issam; ZGHEIB, Elia; NOUVEAU, Corinne Vanadium carbide coatings were deposited by R.F. reactive magnetron sputtering at different nitrogen partial pressures. The structures and the mechanical and tribological behaviour of these coatings were studied. By using a combined approach of EDS and WDS, it has been shown that increasing nitrogen concentration from 0 to 27 at.% led to decrease the carbon content from 48.50 to 30.50 at.%. All coatings exhibited a dominant fcc-VC structure with additional fractions of vanadium nitrides, as determined by XRD. Nanoindentation measurements showed that the highest hardness of 26.1 GPa was obtained for the coating with a (N + C) / (V) ratio equal to 1.44. The transition in brittleness-ductile failure mode was noticed with increasing nitrogen content. This adhesive feature can prevent phase separation and improves the wear resistance of the coatings. Moreover, the nitrogen partial pressure showed a significant influence on the friction coefficient because of film density and residual stress effects. Tue, 01 Jan 2019 00:00:00 GMT http://hdl.handle.net/10985/19686 2019-01-01T00:00:00Z AISSANI, Linda ALHUSSEIN, Akram RADJEHI, Lamia LAKDHAR, Issam ZGHEIB, Elia NOUVEAU, Corinne Vanadium carbide coatings were deposited by R.F. reactive magnetron sputtering at different nitrogen partial pressures. The structures and the mechanical and tribological behaviour of these coatings were studied. By using a combined approach of EDS and WDS, it has been shown that increasing nitrogen concentration from 0 to 27 at.% led to decrease the carbon content from 48.50 to 30.50 at.%. All coatings exhibited a dominant fcc-VC structure with additional fractions of vanadium nitrides, as determined by XRD. Nanoindentation measurements showed that the highest hardness of 26.1 GPa was obtained for the coating with a (N + C) / (V) ratio equal to 1.44. The transition in brittleness-ductile failure mode was noticed with increasing nitrogen content. This adhesive feature can prevent phase separation and improves the wear resistance of the coatings. Moreover, the nitrogen partial pressure showed a significant influence on the friction coefficient because of film density and residual stress effects. http://hdl.handle.net/10985/19683 Influence of film thickness and Ar N2 plasma gas on the structure and performance of sputtered vanadium nitride coatings AISSANI, Linda; ALHUSSEIN, Akram; GHELANI, Laala; ZAABAT, Mourad; NOUVEAU, Corinne We investigated the effect of film thickness on the structure and properties of VN coatings deposited by magnetron sputtering in an argon and nitrogen atmosphere. The nitrogen percentage was changed between 10 and 20%. Firstly, structural and morphological properties of VN films were observed, analyzed and subsequently followed by a detailed investigation on the mechanical and tribological properties of these coatings. It has been shown that film structure, hardness and wear resistance significantly changed with varying the film thickness and the nitrogen percentage. In the case of films deposited under 10%N2, the presence of V2N phase was evident. With increasing nitrogen ratio in the deposition chamber from 10 to 20%, the structure was changed from (hc)V2N to multi phases of V2N and (fcc) VN (formation of different vanadium nitrides). The thick films containing more nitrogen were slightly dense compared to the thinner ones presenting rough surface and columnar morphology. Nanoindentation measurements showed that film mechanical behavior depends on its thickness, nitrogen percentage and microstructural features. The film hardness first increased with its thickness and then decreased. The highest hardness of 26.2 GPa was obtained for the film deposited under 20%N2, which is correlated with its dense structure and film stoichiometry. The film thickness has a significant effect on the tribological properties of VN films. The minimum friction coefficient of 0.4 was found for the thickest film of 2500 nm. The wear rate gradually decreased with increasing the film thickness, due to the high hardness, presence of VN phase and the strong adhesion between film and substrate. Tue, 01 Jan 2019 00:00:00 GMT http://hdl.handle.net/10985/19683 2019-01-01T00:00:00Z AISSANI, Linda ALHUSSEIN, Akram GHELANI, Laala ZAABAT, Mourad NOUVEAU, Corinne We investigated the effect of film thickness on the structure and properties of VN coatings deposited by magnetron sputtering in an argon and nitrogen atmosphere. The nitrogen percentage was changed between 10 and 20%. Firstly, structural and morphological properties of VN films were observed, analyzed and subsequently followed by a detailed investigation on the mechanical and tribological properties of these coatings. It has been shown that film structure, hardness and wear resistance significantly changed with varying the film thickness and the nitrogen percentage. In the case of films deposited under 10%N2, the presence of V2N phase was evident. With increasing nitrogen ratio in the deposition chamber from 10 to 20%, the structure was changed from (hc)V2N to multi phases of V2N and (fcc) VN (formation of different vanadium nitrides). The thick films containing more nitrogen were slightly dense compared to the thinner ones presenting rough surface and columnar morphology. Nanoindentation measurements showed that film mechanical behavior depends on its thickness, nitrogen percentage and microstructural features. The film hardness first increased with its thickness and then decreased. The highest hardness of 26.2 GPa was obtained for the film deposited under 20%N2, which is correlated with its dense structure and film stoichiometry. The film thickness has a significant effect on the tribological properties of VN films. The minimum friction coefficient of 0.4 was found for the thickest film of 2500 nm. The wear rate gradually decreased with increasing the film thickness, due to the high hardness, presence of VN phase and the strong adhesion between film and substrate. http://hdl.handle.net/10985/20721 Effect of carbon content on structural, mechanical and tribological properties of Cr-V-C-N coatings AISSANI, Linda; ALHUSSEIN, Akram; BELGROUNE, Ahlam; ZGHEIB, Elia; BARILLE, Régis; NOUVEAU, Corinne; MONTAGNE, Alex Cr-V-C-N thin films were deposited on XC100 steel and Si(100) wafers by a radio frequency magnetron sputtering technique using chromium and vanadium targets in an Ar/N2/CH4 mixture atmosphere. The microstructure, mechanical and tribological properties of coatings were investigated as a function of carbon content. It has been found that the quaternary Cr-V-C-N coatings containing a low percentage of carbon (≤ 12.4 at.%) exhibited a mixture of chromium and vanadium nitrides nano-sized crystallite phases. The coatings containing a high carbon content (> 25 at.%) were consisted of nitride and carbide phases, where the large carbon atoms inserted through CrN and VN. Mechanical properties of the Cr-V-C-N coatings were influenced by the carbon addition. The maximum hardness value of 28.3 GPa was obtained for the coating containing 28 at.% of carbon which is related to the adhesion strength enhanced by the formation of carbide and nitride mixture. Addition of carbon into the Cr-V-N coating led to significantly decrease its friction coefficient from 0.63 to 0.47. The formation of carbides through the dispersion of carbon in the grains effectively improved the density of the Cr-V-C-N coatings so that the coating deposited under a high CH4 flow rate exhibited a better wear resistance than the other Cr-V-N and Cr-V-C coatings. Fri, 01 Jan 2021 00:00:00 GMT http://hdl.handle.net/10985/20721 2021-01-01T00:00:00Z AISSANI, Linda ALHUSSEIN, Akram BELGROUNE, Ahlam ZGHEIB, Elia BARILLE, Régis NOUVEAU, Corinne MONTAGNE, Alex Cr-V-C-N thin films were deposited on XC100 steel and Si(100) wafers by a radio frequency magnetron sputtering technique using chromium and vanadium targets in an Ar/N2/CH4 mixture atmosphere. The microstructure, mechanical and tribological properties of coatings were investigated as a function of carbon content. It has been found that the quaternary Cr-V-C-N coatings containing a low percentage of carbon (≤ 12.4 at.%) exhibited a mixture of chromium and vanadium nitrides nano-sized crystallite phases. The coatings containing a high carbon content (> 25 at.%) were consisted of nitride and carbide phases, where the large carbon atoms inserted through CrN and VN. Mechanical properties of the Cr-V-C-N coatings were influenced by the carbon addition. The maximum hardness value of 28.3 GPa was obtained for the coating containing 28 at.% of carbon which is related to the adhesion strength enhanced by the formation of carbide and nitride mixture. Addition of carbon into the Cr-V-N coating led to significantly decrease its friction coefficient from 0.63 to 0.47. The formation of carbides through the dispersion of carbon in the grains effectively improved the density of the Cr-V-C-N coatings so that the coating deposited under a high CH4 flow rate exhibited a better wear resistance than the other Cr-V-N and Cr-V-C coatings. http://hdl.handle.net/10985/7536 Influence de l’orientation du fil sur les efforts de coupe dans le défonçage du Pin d’Alep AKNOUCHE, Hamid; ZERIZER, Abdellatif; MARCHAL, Rémy; BUTAUD, Jean-Claude; NOUVEAU, Corinne Ce travail a pour but final de mesurer les forces de coupe dans le domaine du défonçage du Pin d’Alep en fonction de différents angles du fil. La mesure des forces de coupe a été faite grâce a une table piézo-électrique a trois axes, montée sur la table d’une défonceuse a commande numérique. L’outil de coupe représente une fraise sur laquelle est monté une plaquette en carbure faisant un mouvement de rotation et circulaire, ce qui nous donne une variation de l’angle du grain d’une manière instantané. Sun, 01 Jan 2006 00:00:00 GMT http://hdl.handle.net/10985/7536 2006-01-01T00:00:00Z AKNOUCHE, Hamid ZERIZER, Abdellatif MARCHAL, Rémy BUTAUD, Jean-Claude NOUVEAU, Corinne Ce travail a pour but final de mesurer les forces de coupe dans le domaine du défonçage du Pin d’Alep en fonction de différents angles du fil. La mesure des forces de coupe a été faite grâce a une table piézo-électrique a trois axes, montée sur la table d’une défonceuse a commande numérique. L’outil de coupe représente une fraise sur laquelle est monté une plaquette en carbure faisant un mouvement de rotation et circulaire, ce qui nous donne une variation de l’angle du grain d’une manière instantané. http://hdl.handle.net/10985/7492 Test d’usure d’outils modifiés ou non lors du déroulage de MDF AKNOUCHE, Hamid; BENLATRECHE, Yacine; ROUSSELOT, Christophe; PILLOUD, David; ZERIZER, Abdellatif; MARCHAL, Rémy; NOUVEAU, Corinne 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), donc dans des conditions sévères de coupe, ainsi qu’en défonçage d’OSB (Oriented Strand Board) où un revêtement CrN de 1μm d’épaisseur permet d’usiner 9 fois plus qu’un outil non revêtu [1]. Le but de cette étude est d’examiner comment on peut améliorer la tenue à l’usure des outils de coupe dans l’opération de déroulage du MDF, en traitant la partie active de l’outil. Les modifications des surfaces actives des couteaux consistent à appliquer des films durs (CrAlN, CrSiN), qui ont déjà donné des résultats prometteurs dans l’opération de défonçage du MDF [2], l’un des facteurs limitant dont il faut nous affranchir est l’adhérence des couches déposées sur les outils de coupe. C’est pourquoi nous avons testé des traitements duplex (nitruration ionique+dépôt magnétron). Ces revêtements ont également été testés en simulant les chocs que peuvent générer les noeuds dans un billon. Les revêtements de CrAlN ont été réalisés par PVD sur un bâti dual magnétron RF alors que les couches de CrSiN ont été obtenues par l’institut FEMTO/ST de Besançon dans le cadre d’un projet de recherche. La nitruration ionique a été réalisée dans un four de traitement thermochimique BMI. Le processus d’usinage a été effectué sur une microdérouleuse instrumentée, le matériau utilisé étant du MDF (Medium Density Fiberboard). Fri, 01 Jan 2010 00:00:00 GMT http://hdl.handle.net/10985/7492 2010-01-01T00:00:00Z AKNOUCHE, Hamid BENLATRECHE, Yacine ROUSSELOT, Christophe PILLOUD, David ZERIZER, Abdellatif MARCHAL, Rémy NOUVEAU, Corinne 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), donc dans des conditions sévères de coupe, ainsi qu’en défonçage d’OSB (Oriented Strand Board) où un revêtement CrN de 1μm d’épaisseur permet d’usiner 9 fois plus qu’un outil non revêtu [1]. Le but de cette étude est d’examiner comment on peut améliorer la tenue à l’usure des outils de coupe dans l’opération de déroulage du MDF, en traitant la partie active de l’outil. Les modifications des surfaces actives des couteaux consistent à appliquer des films durs (CrAlN, CrSiN), qui ont déjà donné des résultats prometteurs dans l’opération de défonçage du MDF [2], l’un des facteurs limitant dont il faut nous affranchir est l’adhérence des couches déposées sur les outils de coupe. C’est pourquoi nous avons testé des traitements duplex (nitruration ionique+dépôt magnétron). Ces revêtements ont également été testés en simulant les chocs que peuvent générer les noeuds dans un billon. Les revêtements de CrAlN ont été réalisés par PVD sur un bâti dual magnétron RF alors que les couches de CrSiN ont été obtenues par l’institut FEMTO/ST de Besançon dans le cadre d’un projet de recherche. La nitruration ionique a été réalisée dans un four de traitement thermochimique BMI. Le processus d’usinage a été effectué sur une microdérouleuse instrumentée, le matériau utilisé étant du MDF (Medium Density Fiberboard). http://hdl.handle.net/10985/7546 Couches minces dures type Cr-Al-N pour outils de coupe du bois AKNOUCHE, Hamid; ZERIZER, Abdellatif; KENNOUCHE, Salim; SITOUAH, N.; BOULAHIA, H.; NOUVEAU, Corinne Les outils de coupe pour l’usinage métallique sont très développés ces dernières années, ainsi plus 90% des outils en carbure et 10% des forets, tarauds en acier sont revêtus, tout en donnant des résultats intéressants, malheureusement cette tendance n’existe pas en usinage bois. Ce travail donc a pour objectif de développer des outils revêtus pour les tester en défonçage du bois de Pin d’Alep une essence très répandues dans le bassin méditerranéen. Notre étude se fera sur des outils de coupe en carbure revêtu en couches minces de CrN et de CrAlN à différent pourcentage respectivement d’Al déposé grâce à un bâti magnétron de marque Nordiko 3500.Les conditions de dépôts sont optimisés lors des précédents travaux, les essais d’usinage sont réalisés sur une défonceuse à commande numérique de marque Recordi. Le comportement à l’usure des outils modifiés est avéré très prometteur, on a constaté que les films en nitrure de chrome résistent d’une manière considérable par rapport aux outils en carbures. L’ajout de l’Aluminium n’améliore pas la résistance à l’usure mais contribue à la cristallisation des films. Tue, 01 Jan 2013 00:00:00 GMT http://hdl.handle.net/10985/7546 2013-01-01T00:00:00Z AKNOUCHE, Hamid ZERIZER, Abdellatif KENNOUCHE, Salim SITOUAH, N. BOULAHIA, H. NOUVEAU, Corinne Les outils de coupe pour l’usinage métallique sont très développés ces dernières années, ainsi plus 90% des outils en carbure et 10% des forets, tarauds en acier sont revêtus, tout en donnant des résultats intéressants, malheureusement cette tendance n’existe pas en usinage bois. Ce travail donc a pour objectif de développer des outils revêtus pour les tester en défonçage du bois de Pin d’Alep une essence très répandues dans le bassin méditerranéen. Notre étude se fera sur des outils de coupe en carbure revêtu en couches minces de CrN et de CrAlN à différent pourcentage respectivement d’Al déposé grâce à un bâti magnétron de marque Nordiko 3500.Les conditions de dépôts sont optimisés lors des précédents travaux, les essais d’usinage sont réalisés sur une défonceuse à commande numérique de marque Recordi. Le comportement à l’usure des outils modifiés est avéré très prometteur, on a constaté que les films en nitrure de chrome résistent d’une manière considérable par rapport aux outils en carbures. L’ajout de l’Aluminium n’améliore pas la résistance à l’usure mais contribue à la cristallisation des films.