Paper Title:
Vacuum-Free Stirring Brazing of SiCP/A356 Composites and Aluminum Alloy Using Semisolid Filler Metal with Low Solid Fraction
  Abstract

This paper explores the brazing process of SiCp/A356 composites and aluminum alloy using semisolid metal. The two substrates were heated up to the semisolid temperature range of Zn-Al filler metal in the joint region by a resistance heating plate. In order to mix the filler metal with the base metal of both sides to be a single uniform joint, a stirrer was introduced into the weld seam. After stirring, specimens were sectioned for analysis of macro- and micro-structures along the weld region. The research shows that SiCp/A356 composites and aluminum can be local joined with semi-solid filler metal. It can be found that part of the oxide film on the interface of the base metal was disrupted and removed through the observation by SEM. The metallurgical bonds can be formed between the filler metal and the base materials. Moreover, the oxide film of surface of aluminum alloy disrupted and removed was easier than that of surface of composites with existing of Sic particle. The joint microstructure with globular α-Al grain enclosed by rich-Zn phase can be obtained after stirring brazing.

  Info
Periodical
Advanced Materials Research (Volumes 306-307)
Chapter
Chapter 7: Composite Materials
Edited by
Shiquan Liu and Min Zuo
Pages
738-741
DOI
10.4028/www.scientific.net/AMR.306-307.738
Citation
H. B. Xu, Q. X. Luo, L. Xing, B. F. Zhou, Y. L. Zeng, C. H. Du, "Vacuum-Free Stirring Brazing of SiCP/A356 Composites and Aluminum Alloy Using Semisolid Filler Metal with Low Solid Fraction", Advanced Materials Research, Vols. 306-307, pp. 738-741, 2011
Online since
August 2011
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: Xing Hua Liang, Xiao Hua Jie
Other related topics
Abstract:The microstructure and properties of brazing weld of 3003 Aluminum Alloy has been studied by using the methods of microstructure...
3098
Authors: Yang Zhang, Hai Bo Qi, Hao Zhu
Chapter 7: Common Aspects of Manufacturing
Abstract:Composite materials (55 vol.% SiCp/A356) were brazed by filling with a Zn-based alloy with the assistance of ultrasonic waves. 37...
2370
Authors: Jia Ke Li, Xiu Liu, Jian Er Zhou
Chapter 2: Chemical Composition and Microstructure
Abstract:C/SiC composite and TC4 alloy were successfully brazed using 70Ag28Cu2Ti (wt. %) as filler metal at 820 °C~920 °C for 5 min ~30 min. The...
167