Effect of Annealing Treatment on the Mechanical Properties of Cu-Ni-Si/Al-Mg-Si Clad Composite Wires

Abstract:

Copper-clad aluminum (CCA) composite wires have been widely used in cable industry. Especially for the application in aerospace, the light weight character of wires is particularly important. To improve the mechanical properties of wires, Cu-Ni-Si alloy and Al-Mg-Si alloy are employed to replace pure copper and pure aluminum, respectively. The objective of this work is to find the appropriate annealing treatment conditions to produce the Cu-Ni-Si/Al-Mg-Si clad composite wires with optimal combination properties. The wires were fabricated by a drawing process and heat treatment at different temperatures and times. Mechanical and electrical properties dependent on outer Cu-Ni-Si, internal Al-Mg-Si and interface properties, are characterized and analyzed. The fracture behavior of Cu-Ni-Si/Al-Mg-Si clad composite wires was studied together with the stress-strain curves of the composite wires.

• Periodical: Materials Science Forum (Volume 898)
• Pages: 1015-1019
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.898.1015
• Online since: June 2017
• Authors: Zhen Yang, Xun Jun Mi*, Hao Feng Xie, Lijun Peng
• Keywords: Clad Composite Wires, Fracture, Interface, Intermetallic Compound (IMC), Properties

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