Abstract In general, Physical Vapor Deposition (PVD)-TiN coated High Speed Steel (HSS) endmills used to machine carbon steels can perform better at high cutting speeds compared with uncoated tools resulting in better surface finish and longer tool life. Flank wear is believed to be the main wear type that leads to shorten the life of these cutting tools. In this study, the roles of the coating ...

Functional plating such as alloys or dispersion coatings have been widely used in metal finishing industry. In general, dispersion coatings are deposited from plating baths containing suspended particles such as metal oxides, carbides, metals or organic materials,(l-3) Codeposited particles in the dispersion coatings have the remarkable influence on the properties of the deposits depending on t...

The paper presents the results of reverse engineering including metallographic, mechanical, and engineering-technical studies used rods a compressor produced by Dresser-Rand company (Siemens, Germany). study established that original product is made AISI 4140 steel with working coating based on tungsten carbide applied to depth 0.2 mm HVOF method. contains development an import-substituting tec...

Diamond-like carbon (DE) films are characterized by very low friction coefficients, high wear resistance and high corrosion resistance. Depending upon the testing environment, the coefficient of friction can be as low as 0.01. As-deposited films are wear resistant in vacuum as well as in atmospheric ambient. However, the tribological properties of DLC are strongly affected by the deposition met...

The task of this work is to find the optimal ratio between size particles silicon carbide and their volumetric content in nickel matrix provide maximum characteristics strength wear resistance working bodies soil-processing machines. article investigates processes forming complex electrolytic coatings (CEC) on a basis with filler various sizes (SIC). It has been established that formation sicle...

In the present investigation the effect of the substrate dilution on room and high temperature (550 and 700 oC) tribological behaviour of nickel based hardfaced coating deposited by plasma transferred arc onto a grey cast iron was investigated and compared to the uncoated grey cast iron. At room temperature, the wear loss of coatings was independent of the substrate dilution and similar to the ...

Adopting multi-principal high entropy alloys (HEAs) as wear/corrosion-resistant coatings is a frontier in the field of surface engineering. The eutectic alloy (EHEA) exhibited excellent mechanical properties, and its dual-phase, lamellar nanostructure effectively prohibited pitting corrosion, making potential candidate for served complicated environments. In presented study, dense non-oxidized ...

Aluminum alloys are widely used in mechanical engineering due to their physical and properties. However, low wear resistance burr limit use friction nodes. In this regard, parts made of aluminum operating under conditions sliding require surface strengthening, which determines the parameters. Research works direction allow increasing reliability service life Ensuring compatibility pairs allows ...

Synthesis of functionally gradient coating was the main goal of researches to cover some deficiencies of metallic coatings. In this study, a new strategy for generating functionally gradient coatings of nickel-chromium on a carbon steel substrate using pulse electrodeposition has been presented. The gradual changes of the duty cycle and pulse frequency were used to generate the functionally gra...