Published in Russian Metallurgy (Metally)
AbstractA technology of metal modification with carbon nanotubes (CNTs) is developed using electric arc surfacing. It involves the use of extruded metal rods containing CNTs as a deposited material. This technology is used to modify an AMg5 alloy. A comparison of the macro- and microstructures of the metal modified by the developed technology by ad...
Published in Russian Metallurgy (Metally)
AbstractThe changes in the inside diameter of liners during honing without active control means and with their use are studied. The inner surface of the liner is shown to wear out to a greater extent in its upper part. The causes of wear are indicated. The most common method for restoring a liner is mechanical treatment of the inner surface to an i...
Published in Russian Metallurgy (Metally)
AbstractVarious versions of deoxidation and optimization of melting a chromium–nickel Kh65NVFT alloy containing refractory metals under the conditions of AO Kompozit are analyzed. Thermodynamic calculations show that low oxygen concentrations in the Cr–32Ni–2W melts can be achieved by deoxidizing the metal with magnesium, hafnium, and zirconium in ...
Published in Russian Metallurgy (Metally)
AbstractThe elemental composition, the phase composition, and the particle size of the powder fabricated by electroerosion dispersion of the wastes of a VNZh tungsten pseudoalloy in distilled water are investigated.
Published in Russian Metallurgy (Metally)
AbstractPolymer composite materials (PCMs) with a hybrid matrix, which increases the deformation properties of structures in specified local zones, are described. The technology of manufacturing PCMs based on basalt and carbon-filled plastic with various modifiers of a hybrid matrix is described. The structure of PCMs with various hybrid matrix m...
Published in Russian Metallurgy (Metally)
AbstractThe problems of computer simulation of the continuous tube rolling on FQM (fine quality mill) are formulated and solved to study the influence of technological factors on the shape change and the danger of metal fracture. The solution of the problems makes it possible to estimate the effect of the deviation of the rolling axes of the contin...
Published in Russian Metallurgy (Metally)
AbstractA method is proposed to improve the service properties of the zinc coatings on steels formed by cold galvanizing in order to increase their reliability and durability. As a result of annealing a zinc coating in an ammonia medium, the formation of a hardened modified layer due to diffusion processes in both a steel substrate and a zinc coati...
Published in Russian Metallurgy (Metally)
AbstractThe wear of cutting tool wear is considered for various types of cutting fluid, the dependence of the tool wear on the cutting path using various technological media is determined, the experimental results are analyzed, and recommendations on choosing a cutting fluid for cutting are given.
Published in Russian Metallurgy (Metally)
AbstractQuality management was born along with the development of the production of various products. The appearance in the twentieth century of serial and mass production in mechanical engineering, metallurgy and other industries required the development of specialized tools based on statistical methods—control charts, charts, histograms, etc. Spe...
Published in Russian Metallurgy (Metally)
AbstractThe quality of low-rigidity cylindrical parts after straightening by transverse rolling with smooth plates is considered. To simulate the straightening process, the ANSYS Workbench software package is used. The calculation results demonstrate that the quality of cylindrical parts after straightening depends mainly on the relative reduction....
