THERMOPHYSICAL PROPERTIES OF CAST IRON USED IN THE MANUFACTURE OF BRAKE DISCS

This paper presents the results of measurements of thermophysical properties of automotive brake discs made from gray cast iron. The samples were tested before and after operation in the braking system. Thermal con...

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KINETICS OF THE DECOMPOSITION OF AUSFERRITIC STRUCTURE IN COPPER-NICKEL ADI

To determine the kinetics of ausferrite decomposition in copper-nickel ADI, a kinetic model of Johnson-Mehl-Avrami (JMA), designed for the investigations under non-isothermal conditions, was used. Applying the Netz...

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DETERMINATION OF THERMAL CONDUCTIVITY OF SELECTED TYPES OF DUCTILE IRON (SPHEROIDAL GRAPHITE/CAST IRON) BY MEANS OF THERMAL DIFFUSIVITY MEASUREMENTS WITH LASER-FLASH METHOD

This paper presents the results of measurements of thermal conductivity coefficient as a function of temperature for two species of spheroidal cast iron by using one of the most modern experimental sets LFA 427 (La...

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SELECTED THERMO-PHYSICAL PROPERTIES OF ZIRCONIA POWDERS BASED ON RARE EARTH ELEMENTS SUCH AS RE2Zr2O7 (RE - Gd, La, Sm, Nd) FOR THERMAL SPRAY COATING OF BARRIER LAYERS

Paper presents results of investigations of selected thermophysical properties of ceramics powders RE2Zr2O7 (RE - Gd, La, Nd, Sm) type, used for thermal spray coatings. In compariso...

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THE EFFECT OF Ca ADDITION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AZ91 ALLOY

This paper presents the results of research work related with the effect of calcium on the microstructure and mechanical properties of AZ91 alloy. Samples of appropriately prepared alloy grades containing the addition of calcium in different conce...

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Thermophysical properties of Ag-C composites doped with carbon nanotubes

The paper presents results of preliminary studies on Ag-C materials obtained using the powder metallurgy (PM) method with carbon nanotube doping. Based on structural tests performed using scanning electron microscopy a...

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The optimisation of heat treatment parameters for selected cast AlZnMgCu(Mn) alloys

The publication presents the results of optimisation of parameters of complex heat treatment of as-cast AlZnMgCu(Mn) alloys consisting in retrogression and reaging (RRA, Retrogression and Re-aging). For comparison...

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Casting of wrought alloys under external pressure

The paper presents results of wrought alloys casting trials under external pressure. Three alloys were used in the experiment - namely: 2024, 6061 and 7075. The examinations were conducted on squeeze cast parts that solidified under high pressure ...

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Application of squeeze casting technology to obtain aluminum alloy castings

The article presents the results of investigations into castings made of four aluminum alloys produced with the use of squeeze casting technology.The investigations used the following alloys: EN AW 7022 (AlZn5Mg3Cu) and its modification with...

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Thermophysical properties of 30MCDB64-M and 30NSCDV86-M cast steel in cast condition

This paper presents the results of complex investigations into the thermophysical properties of 30MCDB64-M and 30NSCDV86-M cast steel, including temperature conductivity, thermal conductivity, specific heat, thermal expansion and the change of den...

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