A review on tribological coatings / Nihal Srivastava in PAINTINDIA, Vol. LXVII, N° 12 (12/2017)  

[article]  inPAINTINDIA > Vol. LXVII, N° 12 (12/2017) . - p. 85-95 Titre : A review on tribological coatings Type de document : texte imprimé Auteurs : Nihal Srivastava, Auteur Année de publication : 2017 Article en page(s) : p. 85-95 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion Composites Construction sandwich Dépôt chimique en phase vapeur Dépôt en phase vapeur Electrochimie Essais dynamiques Nanostructures Projection thermique Revêtements -- Propriétés mécaniques Revêtements multicouches Tribologie (technologie) Index. décimale : 667.9 Revêtements et enduits Résumé : The energy losses due to friction in the industrialized countries represent an annual cost estimated at between 5 and 7% of their Gross Domestic Product. Approximately, one-third of the world's energy resources in present use appear as friction in one form or another. One of the major contributors to these friction losses is industrial machinery. Surface engineering, including surface treatments and coatings, is one of the most effective and flexible solutions for reduction of friction by Tribological Coatings. Tribological coatings are used for wear resistance and friction reduction between interacting surfaces in relative motion. Its major application will be in automotive engines, cutting tools, industrial parts, etc. This also increases efficiency of moving parts leading to low carbon emission. This paper will throw light upon different types, techniques, end usage, and methodology of application of Tribological Coating. Note de contenu : - Need for tribological coatings - Introduction - Chemistry of deposition of tribological coating : Electrochemical deposition - Thermal spraying - Chemical vapor deposition (cvd) - Physical vapor deposition (pvd) - Design of coating - Single component coatings - Sandwich coatings - Multi-component coatings - Multilayer coatings - Gradient coating - Nanostructure coatings - Superlattice coating - Adaptive coatings - Testing and evaluation of deposited coating : Adhesion to the substrate - Intrinsic mechanical properties - Tribological properties - Resistance to abrasive wear - Resistance to particle erosion - Resistance to sliding wear - Unidirectional rotating sliding tests - Fretting tests - FIGURES : 1. Typical values of coating thickness and process temperature (temperature at the substrate surface of today's tribological coating methods) - 2. Scheme of electroplating process - 3. Scheme of wire flame spraying - 4. Principles of CVD technique - Scheme of chemical vapor deposition technologies - 6. Structure of tribological coating - 7. Nanoindentation curves for three PVD coatings : TiB2, TiN, and CrN. The hardness values and Young's moduli (GPa) obtaines were 53/566 (TiB2), 30/450 (TiN), and 25/330 (CrN), respectively - 8. a: A four-point beam bending device suited for operation in an SEM where 'A' indicates the test bam, 'B' the load cell and 'C' the acoustic detector - 9. Sketch of scratch tests - 10. Principle of ball cratering test. Fig. a schematic view of dimple grinder - 11. Plint TE 66 micro-scale abrasion tester - 12. (a) Ball-on-disk contact ; 12 (b) unidirectional rotating sliding tribometer - 13. Fretting rig and contact configurations - 14. Fretting loop Q-? curve En ligne : https://drive.google.com/file/d/1j0V7wcZudB_dtM9m42dY71mhvzAxJMfp/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29758 [article]

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