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

Autor: Bin Xu, Dong Xia Xu, Fei Han, Long Chen
Rok vydání: 2013
Předmět:
Zdroj: Advanced Materials Research. 683:518-521
ISSN: 1662-8985
DOI: 10.4028/www.scientific.net/amr.683.518
Popis: 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.
Databáze: OpenAIRE