Thermodynamic simulation and an experimental study of the possibility of synthesizing hardened Cu–Zr–O alloys

The conditions of formation of hardened Cu–Zr–O alloys are determined theoretically and experimentally. Thermodynamic analysis of the possibility of formation of zirconium oxide in a liquid metal is performed by constructing the surface of component solubility in a metal melt. Disperse zirconium oxi...

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Bibliographic Details
Published in:Russian metallurgy Metally 2016-09, Vol.2016 (9), p.864-868, Article 864
Main Authors: Samoilova, O. V., Mikhailov, G. G., Trofimov, E. A., Makrovets, L. A.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
COMPOSITES
COPPER ALLOYS (40 TO 99.3 CU)
Copper base alloys
ELECTRICAL CONDUCTIVITY
Formations
Hardening
Hardness
Inclusions
Materials Science
Metallic Materials
Metallurgy
OXIDES
THERMODYNAMIC PROPERTIES
Thermodynamics
ZIRCONIUM COPPERS
ZIRCONIUM OXIDE
Zirconium oxides
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Summary:The conditions of formation of hardened Cu–Zr–O alloys are determined theoretically and experimentally. Thermodynamic analysis of the possibility of formation of zirconium oxide in a liquid metal is performed by constructing the surface of component solubility in a metal melt. Disperse zirconium oxide inclusions in samples are detected by scanning electron microscopy and electron-probe microanalysis. The hardness and the electrical conductivity of experimental samples are measured in the as-cast state and after cold deformation. Hardness HV 133 is reached in cold-deformed samples containing 0.05 wt % Zr without heat treatment. The results obtained can be used to create a process for the formation of bulk composite materials based on copper and copper alloys.
ISSN:0036-0295
1555-6255
1555-6255
1531-8648
DOI:10.1134/S0036029516090135