In this study, a nickel-tungsten/amorphous boron composite coating (Ni-W/B) was successfully deposited on carbon steel using the electrodeposition method. Electrodeposition performed by dispersing varying quantities of amorphous (0, 0.5, 1, and 3 g/L) particles in Ni-W electrolytic bath. The microstructure morphology coatings were characterized scanning electron microscope (SEM). electrochemica...

Ceramic-metal composites have drawn considerable interest due to their mechanical, thermal and wear-resistant capabilities. High temperature processing of these materials when they are employed in electronic circuitry is not desirable, since elevated temperatures can irreversibly affect physical properties of the produced components. Wet chemical methods have potential advantages because they d...

It is shown that an electrodeposited Zn-Ni-Cd alloy coating produced from sulfate electrolyte inhibits the discharge of hydrogen on carbon steel. The newly developed ternary alloys have approximately ten times higher corrosion resistance when compared to a Zn-Ni alloy. Hydrogen permeation characteristics of Zn-Ni-Cd alloy coatings were studied and compared with those of a bare and a Zn-Ni alloy...

Ni-Cr-Mo alloy coatings with different content of Cr element were produced on carbon structural steel by laser cladding. Coatings exhibited similar phase composition containing γ-Ni solid solution and microstructure composed primary grains eutectics segregated Mo. Corrosion behavior in a sulfuric acid dew point corrosion environment investigated through the combination immersion test, electroch...

Abstract: Two different coating microstructures of Ni-50Cr alloy were obtained on a stainless steel substrate by changing combustion characteristics of a high velocity oxy-fuel (HVOF) process and the size distribution of feed powder during coating process. Use of the finer feed powder and leaner fuel in oxygen/fuel ratio (i.e. using a ratio much less than stoichiometric ratio) led to formati...

The struts of reticulated aluminum foams were coated with nanocrystalline Ni–W by electrodeposition. The thickness and composition of these high-strength coatings are controlled by varying the bath chemistry, applied current conditions and deposition time. Despite an increase in density as compared to the uncoated foams, the coated foams exhibit improvements in both absolute and specific streng...

Metallic and alloyed coatings are used widely in several decorative technology-based applications. In this work, we selected Sn plated on Cu substrates for joining We employed two different plating baths the fabrication of Ni coatings: acidic stannous sulfate Watts bath layer. The current densities were varied from 100–500 mA/cm2. Further, wear friction behavior studied using a ball-on-disc app...