Almost all the submicron metal particles in the glass coating of breccia 15286 are rounded and Contain two phases, metal and sulfide tEeS). The Ni content of the metal phase as determined by scanning transmission electron microscope X-ray analysis ranged from 9.4 to 15.5 tvt. The sulfide was nearly stoichiometric troilite containing up to 1.3 wt’ Ni. The close chemical and mi crostructural simi...

This paper discusses the influence of pH value, temperature and current density on crystalline amorphous structure Ni-W alloy coatings during electroplating process. The relationship between corrosion resistance coating its crystal is discussed. In addition, most common types ternary systems composite for electrodeposited are introduced. effects element contents hardness, wear resistance, therm...

Carbon nanoparticles have excellent lubricating properties, however, they are less involved in metal protection. In this study, easily prepared candle soot was added to electroless nickel-phosphorus plating as a re-enforcement particle. Ball-disc friction and wear tests were conducted evaluate the wear-resistance capabilities of Ni-P coating Ni-P-CS (Candle Soot) composite coatings. The paramet...

In this study, electrochemical deposition of Ni-SiC-Gr nano composites was studied. The Watts bath was used for electrodeposition. The SiC and graphite powders were suspended in the electrolyte and stirred. The effects of changes in bath stirring rate on the composite coating were investigated. The X-Ray diffraction (XRD), scanning electron microscopy (SEM) and field emission scanning electron ...

Abstract Two kinds of cermet powders, WC-10Co4Cr and WC-20CrC-7Ni, were deposited on 1040 steel via high velocity air fuel (HVAF) spraying to evaluate resistance in cavitation erosion conditions with additional electrochemical effects. Coating microstructure, phase composition, microhardness examined along the topography eroded surface layers. The WC-20CrC-7Ni coating was found be approximately...