Results 11 to 20 of about 674 (131)

Hypoeutectic Silumin to Pressure Die Casting with Vanadium and Tungsten [PDF]

open access: yesArchives of Metallurgy and Materials, 2016
The basic aim of this study is to investigate the effect of vanadium and tungsten on the crystallization process, microstructure and mechanical properties of silumin grade EN-AC 46000.
Szymczak T., Gumienny G., Pacyniak T.
doaj   +2 more sources

Selected Aspects of Nitrogen Refinement of Silumin 226 [PDF]

open access: yesArchives of Foundry Engineering, 2014
The work presents the results of the investigations of the effect of the nitrogen (N2) refining time „τraf” and the gas output on the course of the crystallization process, the microstructure and the gassing degree of silumin 226 used for pressure ...
Szymczak T., Gumienny G., Pacyniak T.
doaj   +4 more sources

RESEARCH OF THE TRIBOLOGICAL PROPERTIES OF CAST SILUMIN АК15М3 [PDF]

open access: yesЛитьë и металлургия, 2018
A comparative study of the tribological properties of antifriction silumin casting АК15М3 and typical bronzes БрОЦС, БрОФ and БрАЖ at the friction in the lubricant-20A in a wide range of sliding velocities and pressures of the tests.
E. I. Marukovich   +4 more
doaj   +2 more sources

Changes of Material Properties of Silumin During Age-Hardening

open access: yesCommunications, 2012
Simple phenomenological description of age-hardening kinetics of supersaturated solid solution is presented using the sum of exponential functions with negative arguments containing rate constants whose temperature dependence is described by the ...
Jan Kohout
doaj   +2 more sources

PROPERTIES AND APPLICATIONS OF ANTIFRICTION SILUMIN [PDF]

open access: yesЛитьë и металлургия, 2011
Antifrictional silumin which excels traditional bronzes in mechanical and tribotechnical properties is developed. ecologically safe casting technology of billets of 30–300 mm in diameter of antifrictional silumin is created. their cost is 2–3 times lower
E. I. Marukovich, V. J. Stetsenko
doaj   +2 more sources

Technological problems of modifying of structure of silumin castings. Solutions [PDF]

open access: yesЛитьë и металлургия, 2019
It is shown that the main technological problems of modifying of structure of silumin castings are: absence of the universal modifiers, limitation of their action in time; saturation of a melt by hydrogen and oxide of silicon.
E. I. Marukovich, V. . Yu. Stetsenko
doaj   +2 more sources

MATHEMATICAL MODELING OF FORMING OF THE EUTECTIC SILUMIN

open access: yesЛитьë и металлургия, 2006
The numerical model of hardening of continuouslycasted eutectic silumin is worked out. The average speed of enthalpy decreasing in different geometrical zones of casting is calculated on its basis.
E. I. Marukovich   +2 more
doaj   +1 more source

NANOSTRUCTURAL PROCESSES OF MELTING AND MOULDING OF THE EUTECTIC SILUMIN [PDF]

open access: yesЛитьë и металлургия, 2016
It is shown that melting and molding of the eutectic silumin are difficult physical and chemical nanostructural processes. In them the major role is played by the centers of crystallization of the eutectic dendrites of aluminum, aluminum nanocrystals ...
V. Yu. Stetsenko
doaj   +1 more source

VERTICAL CENTRIFUGAL CASTING OF A HYPEREUTECTIC SILUMIN WITH COOLING OF THE MOLD AND CASTING [PDF]

open access: yesЛитьë и металлургия, 2017
It is shown that cooling of casting molds by water with water flow of 0,42 m3/h and internal surfaces of castings with thickness of a wall 12–14 mm with water quantity 2,5×10–4–5×10–4 m3 allows to receive procurements with completely modified ...
E. I. Marukovich   +2 more
doaj   +2 more sources

IMPROVEMENT OF STRUCTURE HEREDITY OF PISTONS OF HYPOEUTECTIC SILUMIN A K 5M [PDF]

open access: yesЛитьë и металлургия, 2005
The technology of improvement of structure heredity in pistons of hypoeutectic silumin is worked out.
V. Ju. Stezenko, S. L. Radjko
doaj   +1 more source

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