Preliminary Research on Brazability of SiC Particulate Reinforced Aluminium-Based Composites

Dong Xia Xu; Long Chen; Bin Xu; Fei Han

doi:10.4028/www.scientific.net/AMR.683.518

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 683Preliminary Research on Brazability of SiC...

Preliminary Research on Brazability of SiC Particulate Reinforced Aluminium-Based Composites

Abstract:

SiCp/A356 composites containing 20% (volume fraction) SiC and three kinds of different filler metals were investigated by vacuum brazing process. Brazability of SiCp/A356 composites was analyzed after nickel plating on the surface of composites and without nickel plating process. The effects of holding time on microstructure of the brazed joints of SiCp/A356 composite were studied by metallographic microscope, SEM and Energy spectrum analysis. The results showed that nickel plating on the surface of composite contributed to improve brazability of SiCp/A356 composites prominently, while inferior brazability displayed without nickel plating on the surface of composites. Hardness of joints brazed at holding time of 6 min, 8 min and 10 min were studied, consequently the hardness of the weld seam region is the highest when the holding time was 8 min.

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Periodical:

Advanced Materials Research (Volume 683)

Pages:

518-521

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.683.518

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Online since:

April 2013

Authors:

Dong Xia Xu, Long Chen, Bin Xu, Fei Han

Keywords:

Composite, Holding Time, Nickel Plating, Silicon Carbide (SiC), Vacuum Brazing

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