Authors: Bekir Sami Yilbas Aditya Kumar Bharat Bhushan
Publish Date: 2013/11/02
Volume: 66, Issue: 1, Pages: 37-45
Abstract
Single and twolayer coatings were deposited onto carbon steel using a highvelocity oxyfuel deposition gun The twolayer coating consisted of a top layer of tungsten carbide cobalt/nickel alloy blend that provides wear resistance and a bottom layer of iron/molybdenum blend that provides corrosion resistance The morphological changes in the single and twolayer coatings were examined using scanning electron microscopy The residual stresses formed on the surface of various coatings were determined from xray diffraction data Nanomechanical properties were measured using the nanoindentation technique Microhardness and fracture toughness were measured incorporating the microindentation tests Macrowear and macrofriction characteristics were measured using the pinondisk testing apparatus The goal of this study was to ensure that the mechanical properties friction and wear resistance of the twolayer coating are similar to that of the singlelayer coating
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