The Effect of Ti Addition on the Properties of Al-B₄C Interface: A Microstructural Study

Abstract:

In the present work, Al-B4C composites were produced by casting route at 850°C and titanium-containing flux was used to overcome the wetting problem between B4C and liquid aluminium metal. The microstructure of matrix/reinforcement interface was investigated using SEM studies with or without Ti added composites. The reaction layer was also characterized with EDS analysis and X-ray mapping. It was found from the microstructural observations by high resolution field emission gun SEM (FEG-SEM) that the wetting issue was effectively solved by the formation of very thin (80-180 nm in thickness) Ti-C and Ti-B reaction layers.

• Periodical: Materials Science Forum (Volumes 636-637)
• Pages: 192-197
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.636-637.192
• Online since: January 2010
• Authors: F. Toptan, Ayfer Kilicarslan, Isil Kerti
• Keywords: Aluminum (Al), Boron Carbide, Casting, Composite, Interface, Microstructure, Scanning Electron Microscope (SEM), Titanium (Ti)

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