Effect of Zr Addition on Microstructure and Properties of Cu–Ag–Ti Alloys

Effects of small addition of Zr on the microstructures and properties of as-cast Cu 50 Ag 46−x Zr x Ti 4 alloys were investigated by differential scanning calorimeter (DSC), x-ray diffraction, microscope, and property testings. The results show that the melting point of the Cu 50 Ag 46 Ti 4 alloys d...

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Bibliographic Details
Published in:Journal of materials engineering and performance 2014-05, Vol.23 (5), p.1854-1860
Main Authors: Xiao, D. H., Li, X. X., Zhang, F. Q., Zhang, Y. S.
Format: Article
Language:English
Subjects:
Applied sciences
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion
Corrosion and Coatings
Corrosion prevention
Engineering Design
Exact sciences and technology
Hardness
Materials Science
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Quality Control
Reliability
Safety and Risk
Tribology
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Summary:Effects of small addition of Zr on the microstructures and properties of as-cast Cu 50 Ag 46−x Zr x Ti 4 alloys were investigated by differential scanning calorimeter (DSC), x-ray diffraction, microscope, and property testings. The results show that the melting point of the Cu 50 Ag 46 Ti 4 alloys does not change obviously with the addition of Zr at the melting points of about 779 °C. Adding Zr reduces the volume fraction and size of the board strips of Cu 3 Ti phase, promotes the uniform distribution of the new phase Cu 4 AgZr, and improves the Vickers hardness and shear strength of the based alloys. Moreover, increasing the Zr content can improve the high-temperature oxidation resistance of alloys.
ISSN:1059-9495
1544-1024
DOI:10.1007/s11665-014-0926-7