Corrosion Measursement, Friction testing and XRD Analysis of Single Layer CrN Coatings on AISI 304 Stainless Steel
Journal: International Journal of Advanced engineering, Management and Science (Vol.3, No. 5)Publication Date: 2017-05-08
Authors : Alok Vats;
Page : 435-445
Keywords : Erosive -corrosive wear; single layer coating; Potentiostat; Coefficient of friction; XRD analysis.;
Abstract
The purpose of present study was to investigate the erosive corrosive wear behavior of single layer (CrN) coatings on AISI 304 Stainless Steel samples with varying coating thickness (0-200 nm) in the range of 50 nm. The slurry jet erosive test was conducted on Slurry Jet Erosion Tester in saline slurry (3.5wt% salt) under the different working conditions with varying impact velocity (10-25 m/s), impingement angle (30°-75°) and erodent discharge (160-280 gm/min). Corrosion tests were conducted in 3.5 wt. % NaCl solution using a Potentiostat, in order to analyze the corrosion behavior of the coated samples in sea water environment. Coefficient of friction was measured using a Scratch Tester. XRD analysis of the eroded samples indicated the presence of both CrN and Cr2N (200) in the coatings.
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