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Ramazan Kayikci,Ömer Savaş 국제구조공학회 2015 Steel and Composite Structures, An International J Vol.19 No.3
Production and properties of metal matrix composites reinforced with an in-situ high aspect ratio AlB2 flake have been investigated. Boron 2.2wt.% was dissolved in pure Al and Al-Cu alloy at 1300℃ by adding directly boron oxide which resulted in 4 vol.% reinforcing phase. The in-situ AlB2 flake concentration was increased up to 30 vol.% in order to increase the tensile strength of the composites. Hardness, compressive strength and tensile strength of the composite were measured and compared with their matrix. Results showed that 30 vol.% A1B2/Al composite show a 193% increase in the compressive strength and a 322% increase in compressive yield strength. Results also showed that ductility of composites decreases with adding AlB2 reinforcements.