Properties and Fabrication of Alumina Dispersion Strengthened Copper Alloy with High Softening Temperature

Abstract:

Cu-Al₂O₃ alloy combine both high electronic conductivity and high softening temperature. Cu-Al₂O₃ alloy was fabricated by internal oxidation and hot extrusion methods in the present investigation. Microstructure and properties of Cu-Al₂O₃ alloy was studied. The influence of preparation parameters, hot extrusion parameters and heat treatment on the properties of the alloy was investigated. The results indicated that the grain of the alloy was very small with a size between 2-10μm. Softening temperature of the Cu-0.6% Al₂O₃ alloy and Cu-1.0% Al₂O₃ alloy was 900. Cu-0.6%Al₂O₃ alloy and Cu-1.0% Al₂O₃ alloy meeting the requirements for electrode in resistance welding is the ideal substitution of the traditional electrode materials for resistance welding.

• Periodical: Materials Science Forum (Volume 749)
• Pages: 425-431
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.749.425
• Online since: March 2013
• Authors: Sheng Li Han, Xiao Dong Qin, Yi Xiang Cai, Kai Luo, Huan Wen Xie, Da Ren Li
• Keywords: Cu-Al₂O₃ Alloy, Internal Oxidation, Softening Temperature

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