Journal
METALURGIJA
Volume 62, Issue 3-4, Pages 397-400Publisher
CROATIAN METALLURGICAL SOC
Keywords
copper alloy; rolling; macrostructure; electrical conductivity; mechanical properties
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The article presents the results of rolling magnesium copper castings with microadditives of P, Al, Ti, and Zr. The castings were made in the process of static casting into rods with a diameter of 20 mm. The obtained castings were shaped with a 3% draft into bars of square cross-section and rolled with 20% drafts on average. Mechanical properties and electrical conductivity were examined at different degrees of plastic deformation.
The article presents the results of rolling magnesium copper castings with microadditives of P, Al, Ti, and Zr. The cast-ings were made in the process of static casting into rods with a diameter of 20 mm. The obtained castings were shaped with a 3 % draft into bars of square cross-section and rolled on a shape mill with 20 % drafts on average. Mechanical properties were determined in a static tensile test at selected degrees of plastic deformation (57,2 %, 76,9 % and 91,3 %). At the final stage of cold working of the wire rods with a total draft of 91,3 %, the microstructure and electrical conductivity were examined. The research indicates a strong influence of microadditives on the strengthening of castings in the rolling process and their electrical conductivity.
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