Abstract
Abstract ZrO2-toughened Al2O3 (ZTA, 40%) ceramic particles reinforced by high chromium cast iron (HCCI) matrix composites were fabricated by casting infiltration. The interaction between the ZTA ceramic particles and the matrix by the interface transition layer (ITL) was investigated. From the perspective of interfacial bonding, the ceramic particles and HCCI experienced metallurgical bonding by the ITL. Electron probe microanalysis results demonstrated that Cr, Fe, and Mn diffused from the matrix to the ITL. Transmission electron microscopy revealed that the main phases in the transition layer were glassy. The wear resistance of the composites with the transition layer was better than those without, as indicated by the three-body abrasive wear tester.
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