Dry abrasion property of TiN-matrix coating deposited by reactive High Velocity Oxygen Fuel (HVOF) spraying / Zhengping Mao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 2 (03/2010)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 2 (03/2010) . - p. 253-259 Titre : Dry abrasion property of TiN-matrix coating deposited by reactive High Velocity Oxygen Fuel (HVOF) spraying Type de document : texte imprimé Auteurs : Zhengping Mao, Auteur ; Jing Ma, Auteur ; Jun Wang, Auteur ; Baode Sun, Auteur Année de publication : 2010 Article en page(s) : p. 253-259 Note générale : Bibliogr. Langues : Américain (ame) Tags : 'Pulvérisation  réactive'  'Projection  flamme  oxygène-carburant  haute  vitesse'  (HVOF)  'Abrasion  sèche  'Auto-lubrifiant'  'Revêtement  nitrure  titane' Index. décimale : 667.9 Revêtements et enduits Résumé : A TiN-matrix coating with a thickness of about 400 μm was prepared by reactive high velocity oxygen fuel (HVOF) spraying on carbon steel in air. The phase composition, microhardness, and antiabrasion properties of the coating were investigated using x-ray diffraction (XRD), an energy dispersive spectrometer (EDS), a scanning electron microscope (SEM), a Vickers microhardness tester, and block-on-ring abrasive equipment. The abrasion mechanism of TiN-matrix coating under dry abrasion conditions was also discussed. The results indicate that the composition of the coating is main phases of TiN and TiN0.3, minor phases of Ti2O3, and TiO2. The TiN-matrix coating possesses high microhardness and relatively good toughness. Furthermore, the friction coefficient of the coating decreases with the increment of applied load. The interstratified distribution of titanium oxides can act as a solid lubricant during the wear test. The main abrasion mechanism of the TiN-matrix coating is adhesion wear. In addition, the coating with self-lubricating property can improve the antiwear property of the substrate significantly. DOI : 10.1007/s11998-009-9180-6 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9180-6.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9071 [article]

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Properties of TiN-matrix coating deposited by reactive HVOF spraying / Zhengping Mao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 2 (06/2009)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 2 (06/2009) . - p. 243-250 Titre : Properties of TiN-matrix coating deposited by reactive HVOF spraying Type de document : texte imprimé Auteurs : Zhengping Mao, Auteur ; Jing Ma, Auteur ; Jun Wang, Auteur ; Bao-de Sun, Auteur Année de publication : 2009 Article en page(s) : p. 243-250 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone Anticorrosion Métaux -- Revêtements protecteurs Nitrure de titane Index. décimale : 667.9 Revêtements et enduits Résumé : TiN-matrix coating was prepared by reactive high velocity oxygen fuel (HVOF) spraying on carbon steel based on the self-propagating high temperature synthesis (SHS) technique in air. The phase composition, structures, and properties of TiN-matrix coating were analyzed using XRD, EDS, SEM and Vickers microhardness equipment. The anti-corrosion property in nearly neutral 3.5 w t% NaCl electrolytic solution was measured. The Weibull distribution of Vickers microhardness at different loads and their linear fitting were analyzed. The apparent fracture toughness of the coating was also calculated. The coating is composed of main phases (TiN, TiN0.3), minor phases (Ti2O3, TiO2), and porosity. The anti-corrosion property of an HVOF-sprayed TiN-matrix coating in electrolytic solution is superior to that of AISI 316L stainless steel. The microhardness values from 1137HV0.05 to 825HV1 are relatively high and have indentation size effect (ISE). With the increment of m, which increases with the increment of applied load, the microhardness values are more concentrated. The average value of apparent fracture toughness Kic is 4.62MPa}. m1/2. It is higher than that of reactive plasma sprayed (RPS) TiN coating, which reflects the good toughness of a TiN-matrix coating deposited by reactive HVOF spraying. DOI : 10.1007/s11998-008-9105-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9105-9.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5625 [article]

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