Age hardening characteristics of Cu-Ag-Zr alloy

Age hardening characteristics of Cu-Ag-Zr alloy

Cu-Ag-Zr alloy is a newly developed copper alloy material which has an excellent combination of high mechanical strength and high electrical conductivity. By means of vacuum induction melting, Cu-Ag-Zr alloy was produced. The effects of aging processes on the microhardness and electrical conductivit...

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Veröffentlicht in:Metals and materials international 2009, 15(4), , pp.555-558
Hauptverfasser: Jia, S. G., Ning, X. M., Liu, P., Zheng, M. S., Zhou, G. S.
Format: Artikel
Sprache:eng
Schlagworte:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Engineering Thermodynamics
Heat and Mass Transfer
Machines
Magnetic Materials
Magnetism
Manufacturing
Materials Science
Metallic Materials
Processes
Solid Mechanics
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Zusammenfassung:Cu-Ag-Zr alloy is a newly developed copper alloy material which has an excellent combination of high mechanical strength and high electrical conductivity. By means of vacuum induction melting, Cu-Ag-Zr alloy was produced. The effects of aging processes on the microhardness and electrical conductivity characteristics of Cu-Ag-Zr alloy were studied. After aging at 450 °C for 4h, the alloy showed an excellent combination of microhardness and electrical conductivity: the microhardness and electrical conductivity reach 126 HV and 84%IACS, respectively. The precipitates responsible for the age-hardening effect are the fine and dispersed Cu 5 Zr, which has a face center cubic structure. Cu 5 Zr precipitates are fully coherent with the Cu matrix and give the Cu-Ag-Zr alloy higher microhardness and higher electrical conductivity.
ISSN:1598-9623
2005-4149
DOI:10.1007/s12540-009-0555-0