Effect of heat treatment temperature on the microstructure and wear corrosion properties of NiCrBSi–TiN composite coatings

Considerations on the Wear Behavior of Vacuum-Remelted ZrO2-Reinforced Self-Fluxing Ni-Based Thermally Sprayed Alloys

“…Since the content of the chemical elements cannot be varied indefinitely to improve the alloy or the resulting coatings, other developments in terms of novel deposition techniques, post-processing, or the introduction of reinforcing particles have been proposed. Although new methods, such as one-step atmospheric plasma spraying deposition [ 4 ] or powder laser cladding with no further post-processing, were recently reported [ 5 ], most of the state-of-the-art Ni-based self-fluxing alloy coatings need further remelting [ 6 , 7 , 8 , 9 ]. Post-processed coatings show improvement in fracture toughness and overall improved mechanical performance [ 10 ], as well as an increase in wear and corrosion resistance [ 11 ].…”

“…Modifications of coating density, improvement of the inter-splat bonding, and adhesion strength to the substrate are aspects also reported in the literature [ 12 ]. Various remelting technologies have been recently investigated, such as flame [ 13 , 14 ], laser [ 15 , 16 , 17 ], plasma [ 18 , 19 ], or furnace treatment [ 6 , 15 , 20 ].…”

“…SiO 2 tribo-films formed on SiC-reinforced Ni-based coatings have also been described to greatly improve the boundary lubrication effect [ 24 , 25 ]. Wang et al recently reported a comprehensive study regarding the effect of heat treatment at different temperatures on the microstructure of NiCrBSi-TiN composite coatings [ 6 ], while Huang et al successfully used TiC as strengthening particles [ 26 ]. Recently, our research group reported on titanium-reinforced coatings and observed that the TiB 2 particles acted as physical barrier against wear and corrosion phenomena [ 27 , 28 ].…”