Effect of hBN on Corrosion and Wear Performances of DC Electrodeposited NiW and NiW–SiC on Brass Substrates

Crack-free and uniform nickel–tungsten (NiW) coatings their composite filled with ceramic particles such as silicon carbide (SiC) hexagonal-boron nitride (hBN) were deposited on brass substrates by applying direct current (DC) waveforms. Among all coatings, NiW–SiC–hBN displayed the noblest corrosion potential (−0.49 V) lowest density (4.36 × 10−6 A·cm−2). It also seems that addition of hBN SiC to NiW matrix remarkably improved wear performance coatings. However, NiW–hBN exhibited volume (48.84 103 µm3) friction coefficient 0.1 due ultra–low particles.