Corrosion,Mechanical and Catalytic Properties of Coatings Based on FeNiCrWMoCoCB Metallic Glasses

Protection of Metals and Physical Chemistry of Surfaces - This work is devoted to the deposition of coatings based on FeNiCrWMoCoCB metallic glasses on a surface made of 35 steel; the deposition is...     

Investigation of coatings produced by the electrospark machining method of steel 45 with electrodes based on carbides of tungsten and titanium

The article is devoted to the development and investigation of tungsten-containing and tungstenless electrode materials for electrospark alloying using additives of boron-containing minerals, as well as aluminum-oxide nanopowder. The kinetics of the mass transfer process with the electrospark alloying of coatings was investigated. The phase composition, roughness, and kinetics of high-temperature oxidation of coatings were studied. The anticorrosive properties of obtained coatings were studied in 3% NaCl solution by the method of impedance spectroscopy. An improvement of the barrier properties of TiC–Ni–Mo coatings with increasing datolite concentrate was revealed.     

Impregnating a heated filler with a non-Newtonian fluid

An approximate parametric method is used to solve the planar temperature-dependent problem of continuously impregnating a heated filler with a fluid that has a power-law non-Newtonian viscosity.Translated from Inzhenerno-fizicheskii Zhurnal, Vol. 61, No. 4, pp. 613–620, October, 1991.     

Influence of electrospark discharge parameters on roughness and microabrasive wear of steel 45 surface after ESA by TiC-based electrodes

The influence of the parameters of electrospark discharge and electrode materials for electrospark alloying using the additives of boron-containing mineral raw material on the characteristics of microgeometry and microabrasive wear of the coating surface is investigated. It is found that the longer is the electrospark duration (from 20 to 80 μs), the higher is the surface roughness. The introduction of 1–2% of boron-containing raw material improves physicochemical properties of the alloyed layer, reduces the roughness, and increases the wear resistance.