Results 31 to 40 of about 232 (146)
RESEARCH OF THE TRIBOLOGICAL PROPERTIES OF CAST SILUMIN АК15М3
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
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Effect of Al5TiB Master Alloy with P on Microstructure and Mechanical Properties of AlSi7Mg Alloy
Aluminum-silicon alloys are popular casting alloys. In its raw state, the microstructure of the hypoeutectic silumin consists of a large eutectic β phase against the background of dendritic eutectic α.
Tomasz Lipiński
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Technological problems of modifying of structure of silumin castings. Solutions
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
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Some peculiarities of chips oxidation, containing magnesium
The process of oxidation of aluminium and silumin shavings has been investigated. It has been stated that presence of magnesium in silumin intencifies oxidation independently on furnace atmosphere composition. The technology of silumin shavings remelting
V. D. Belov +2 more
doaj
Scientific problem of modifying of primary crystals a β -phase of silumin castings. Solutions
It is shown that the phosphorum which is contained in a silumin melt in number of 0,01–0,04% exists in the dissolved form. For a solution of the problem of modifying of primary crystals of a β -phase in silumin castings it is necessary to accept a ...
E. I. Marukovich, V. Yu. Stetsenko
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The microstructure and microhardness of aluminum and silumin аК12 with iron content of 0 to 12 mas.% produced by sand casting and mol casting have been investigated.
V. I. Gorbachiova +3 more
doaj
VERTICAL CENTRIFUGAL CASTING OF A HYPEREUTECTIC SILUMIN WITH COOLING OF THE MOLD AND CASTING
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
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INFUENCE OF MODIFIERS ON THE CHANGE OF MECHANICAL PROPERTIES OF SILUMINS
An increase in the sum of alloying elements in industrial silumins causes the formation of excess intermetallic phases in their structure. When introducing modifiers in such alloys above a certain amount, structural components are coarsened because of overmodification, which can cause a decrease in the mechanical properties of cast alloys.
K. V. Nikitin +2 more
openaire +2 more sources
MATHEMATICAL MODELING OF FORMING OF THE EUTECTIC SILUMIN
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
STRUCTURAL-PHASE STATE OF THE SURFACE LAYER OF AI-SI ALLOY AFTER ELECTRON-ION-PLASMA TREATMENT
The results of silumin surface modification by combined method including irradiation by plasma produced in the electric explosion of conductive material followed by a pulsed electron beam treatment are presented.
A.A. Klopotov +5 more
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