Paper Title:
Development of Al/Cu Dissimilar Brazing Joint Controlled Form of Intermetallic Compound
  Abstract

Brazing of Al to Cu using Al-Si-Mg-Bi brazing alloy has been carried out in a vacuum furnace. In the brazed interlayer, there were two kinds of intermetallic compounds. One of these intermetallic compounds was θ phase and the other was δ(Cu3Al2). Tensile strength of the joint was only about 15MPa. Deformation behavior of Al/Cu brazing joint was brittle without deformation of the base metal. The specimen was fractured in the intermetallic compound which was mainly θ phase. In order to improve the tensile strength of Al/Cu dissimilar joint, Cu cladding Ag (thickness: 0.1mm) substituted for Cu. As the result, tensile strength of the joint was about 70MPa and the specimen was fractured in an Al base metal. In this joint, plate-like intermetallic compound, δ (Ag2Al) was formed in the brazed interlayer. The shape of δ(Ag2Al) was quite different from θ phase found in Al/Cu joint. It was considered that the shape of reaction layer remarkably affected to the strength of the Al/Ag-Cu clad dissimilar joint.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
4075-4080
DOI
10.4028/www.scientific.net/MSF.539-543.4075
Citation
K. Shinozaki, K. Koyama, "Development of Al/Cu Dissimilar Brazing Joint Controlled Form of Intermetallic Compound", Materials Science Forum, Vols. 539-543, pp. 4075-4080, 2007
Online since
March 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Young Sup Lee, Cheol Ho Lim, C.H. Lee, K.W. Seo, Seung Y. Shin, Chang Hee Lee
Abstract:In this study, a diffusion bonding of aluminium alloy A6061 was preformed using an Ag-28Cu filler metal in order to conduct eutectic...
2772
Authors: Young Sup Lee, Kyoung Won Seo, C.H. Lee, Cheol Ho Lim, C.H. Lee
Abstract:In this study, we examined brazeability of Al5052 alloys using a Ag-28Cu insert metal in vacuum condition. A high frequency induction-heating...
390
Authors: Yong Won Lee, Jong Hoon Kim, Young Sik Song, Chang Sung Seok
Abstract:The formation of intermetallic compounds in brazed joints between SUS304 and nickel-based filler metal is a major concern, since they...
1673
Authors: Seung Wook Baek, Won Bae Lee, Ja Myeong Koo, Chang Yong Lee, Seung Boo Jung
Abstract:Microstructure and mechanical properties of friction welded and vacuum brazed Ti/AISI 321 stainless steel have been evaluated with various...
423
Authors: Zi Xuan Wang, Yun Zhu Ma, Wen Sheng Liu, Shu Hua Liu, Qing Shan Cai
Symposium S: Materials for Mechanical Engineering and Processing Technology
Abstract:Due to its excellent thermal physical properties, tungsten is used as structural material in divertor components of fusion reactors. With the...
27