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Du W.-J.,Sino Platinum Metal Co Ltd | Du W.-J.,Kunming Institute of Precious Metals | Xie M.,Sino Platinum Metal Co Ltd | Xie M.,Kunming Institute of Precious Metals | And 14 more authors.
Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment | Year: 2013

Influence of heat treatment on interface of Cu/Al bimetal composite was investigated. Diffusion theory was used to analyze copper clad aluminum wire interface. The results show that the sample of copper clad aluminum composite wire prepared by solid-liquid casting method and drawing is difficult to be plastic processed after high-temperature annealing, but the interface is firmly bonded after low-temperature annealing. The optimal annealing temperature is 400°C and annealing time is 1 h. The mechanical properties of the composite wire are influenced by two mechanisms of annealing softening and interfacial diffusion. Source


Du W.,Sino Platinum Metal Co Ltd | Du W.,Kunming Institute of Precious Metals | Xie M.,Sino Platinum Metal Co Ltd | Xie M.,Kunming Institute of Precious Metals | And 16 more authors.
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | Year: 2015

Ag/Cu composite wires were prepared by a solid-liquid casting method and drawing. The influence of annealing temperature on interface and mechanical properties of the Ag/Cu bimetal composite wires was investigated. The Ag/Cu interface was analyzed by scanning electron microscope and optical microscope to investigate the microstructure, elements distribution and bonding level. The effect of annealing temperature on diffusion thickness was also analyzed by EDS and line scan. The results show that the width of the diffusion region along the interface in the both sides increases with higher annealing temperature. Good bonding properties of the interface could be obtained when the optimal annealing temperature is 400℃ ~ 500℃ and the holding time 60 min. Copyright © 2015, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved. Source

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