Abstract
In this study, the effect of Al2O3–TiB2/Fe complex ceramic–metal reinforcement (CCMR) on wear and mechanical properties of Al-(Al2O3–TiB2/Fe) composites were investigated. For this purpose, Al2O3–TiB2/Fe CCMR was synthesized by mechanochemical process. The produced reinforcement powders were added to Al matrix, milled for 10 h and then hot extruded. The results showed that the metallic component (Fe rich phase) in this reinforcement acted as a pin, sticking the ceramic parts (Al2O3–TiB2) to Al matrix. The best volume percentage of CCMR in Al matrix was recognized to be about 2.5 %. This composite showed a combination of wear resistance (0.005 mg/m), strength (500 MPa) and ductility (of about 6 %).
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