MCrAlY coatings (M=Ni and/or Co) have been widely used for the protection of superalloy components against oxidation and hot corrosion in the hot sections of gas turbines. The drive to improve engine combustion efficiency while reducing emissions by increasing the operation temperature brings a big challenge for coating design. As a result, the need for improvement of MCrAlY coatings for better...

Intermetallic systems of Nickel (Ni), Aluminium (Al), and Titanium (Ti) are candidates for lightweight materials that offer high-temperature resistance. Combustion synthesis has been widely studied to produce intermetallic coating deposition by exploiting the heat released combustion. An underlayer is often used enhance adhesion substrate. The interaction during heating is, therefore, crucial a...

Ni–Ti shape memory alloys (Nitinol) are suitable for biomedical applications such as orthodontic, orthopedic, and cardiovascular implants. However, to avoid local inflammatory processes, efforts being made functionalize the surface of alloy with bioactive materials. Chitosan-based composite coatings can be applied improve properties due their excellent properties, low toxicity, biocompatibility...

The Nb2O5-Ni coating was processed using DC sputtering on structural steel and study characterization of composite SEM/EDS inspection indicated clearly perfect incorporation Nb2O5 within the nickel rich. Increasing in surface roughness decreasing average diameters particles were obtained for coated compared with uncoated from AFM analysis, addition, microhardness test thickness showed that incr...

Lubricating-reinforcing composite coatings were successfully prepared on Ti6Al4V using laser-clad Ti6Al4V/Ni60/Ni-MoS2 mixed powders with different Ni-MoS2 contents (25, 35, and 45 wt.%), their microstructure tribological properties studied. The reinforcing phase TiC, Ti2Ni, the lubricating Ti2SC in situ precipitated while Ti2Ni formed a mosaic coherent structure within above three coatings. In...