The Effect of Ti Addition on the Properties of Al-B(4)C Interface: A Microstructural Study

TOPTAN F., Kilicarslan A. , KERTİ I.

5th International Materials Symposium/14th Conference of the Sociedade-Portuguesa-de-Materiais, Lisbon, Portekiz, 5 - 08 Nisan 2009, ss.192-197 identifier identifier


In the present work, Al-B(4)C composites were produced by casting route at 850 degrees C and titanium-containing flux was used to overcome the wetting problem between B(4)C 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.