Abstract: The surface of the ZTA (ZrO2 toughened Al2O3) ceramic particles cover with B4C powder. The ceramic particles were prepared into a ceramic preform with honeycomb structure. The composites of ceramic particles reinforced high chromium cast iron matrix was fabricated by the molten HCCI casting infiltrate the preform. The interface between the ZTA ceramic particles and the high chromium cast iron were studied and the wear resistances of the composites were also studied. The results show that the interface transition zone was formed at the interface between the ZTA particles and the high chromium cast iron. The existence of the interface transition layer can improve the combination of the ceramic particles and metal matrix that improve the overall stability of the composites. At the same time, the three-body abrasive wear test shows that the wear resistance of the composites is higher than the high chromium cast iron about 3.5 times.
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2018, Vol. 32 
