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Start Over Author "SIEJA-SMAGA, E." Topic cu-ag alloys
3 results on '"SIEJA-SMAGA, E."'

1. Manufacturing and properties of cast Cu-Ag alloys designed for electrotechnical applications

Author

Kawecki, A., Sieja-Smaga, E., Mamala, A., Kwasniewski, P., Smyrak, B., and Sciezor, W.

Subjects
Cu-Ag alloys, chemical composition, DSC, mechanical properties, electrical properties
Abstract

The results of the current paper present the research concerning the obtaining of Cu-Ag alloys with wt. % of silver ranging between 5 and 20 % using continuous casting process. The process parameters have been introduced. Selected results regarding physical and mechanical properties of the casts have been discussed. Strength coefficients describing the plastic deformation range of the Cu-Ag alloys have been calculated using Hollomon’s equation. Additionally, in order to determine the influence of the temperature with Differential Scanning Calorimeter (DSC) on the electrical resistance, the values of temperature coefficients of resistance have been determined for all of the tested alloys.

Published
2023

2. THE INFLUENCE OF HEAT TREATMENT AND PLASTIC DEFORMATION ON THE ELECTRICAL AND MECHANICAL PROPERTIES OF CuAg ALLOYS FOR THE CONSTRUCTION OF HIGH-FIELD BITTER TYPE ELECTROMAGNETS.

Author

KAWECKI, A., SIEJA-SMAGA, E., and KWAŚNIEWSKI, P.

Subjects
*HEAT treatment, *MATERIAL plasticity, *DEFORMATIONS (Mechanics), *ELECTROMAGNETS, *ALLOYS, *SCANNING electron microscopy
Abstract

Cu-Ag alloys may be used in the form of sheets for the construction of bitter type magnets. The paper presents results of laboratory studies on obtaining of ingots from Cu-(1÷7wt.%)Ag alloys, solution treatment and aging and rolling process. Has been shown influence of different heat treatment and plastic deformation on the mechanical and electrical properties. The microstructural analysis of castings and sheets with the use of scanning electron microscopy (SEM) is also presented. [ABSTRACT FROM AUTHOR]

Published
2022

3. INFLUENCE OF PLASTIC DEFORMATION ON THE CHANGE OF ELECTRICAL AND MECHANICAL PROPERTIES OXYGEN-FREE (OF) COPPER AND COPPER ALLOY WIRES.

Author

KNYCH, T., MAMALA, A., KAWECKI, A., SMYRAK, B., KORZEŃ, K., and SIEJA-SMAGA, E.

Subjects
*MATERIAL plasticity, *COPPER wire, *ELECTRIC conductivity, *COPPER, *COPPER alloys, *WIRE
Abstract

This article is devoted to the comparison of changes in mechanical and electrical properties due to the applied deformation of copper and copper alloy rods. Bars from four different production technologies were deformed in the drawing process, including oxygen-free (OF) copper, electrolytic copper ETP, copper from cable granulate and silver copper with a high silver content up to 15 wt. % obtained in laboratory technology. The article presents the chemical purity, physical and electrical properties of rods before deformation. The summary of the research on the selected materials are changes in mechanical properties and electrical conductivity as a function of deformation up to 3,5 on a logarithmic scale and the coefficient of electromechanical efficiency WEM. [ABSTRACT FROM AUTHOR]

Published
2022

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