Zirconia-toughened alumina ceramic particle (ZTA_P)-reinforced high Cr cast Fe matrix composites (ZTA_P/Fe composites) are promising advanced wear-resistant materials. However, due to wear and tear, the ceramic particles may shed from the Fe matrix because of their low interfacial bonding properties. In the present work, we investigated interfacial characteristics and abrasive wear behaviours of ZTA_P/Fe composites. Results showed that sintering played a significant role in the formation of sintering necks and consequently affected both compressive strengths and porosities of ZTA ceramic preforms. Optimum compressive strength (44.3 MPa) and porosity (25.2%) were obtained when sintering was performed at 1350 °C for 1 h. Subsequently, ZTA_P/Fe composites without evident defects were fabricated by infiltration casting. Scanning electron microscopy, electron probe microanalysis and transmission electron microscopy were also used to analyse the microstructures and phase constituents of the interfacial layers of composites. Effects of applied wear loads on the wear behaviour evolutions and wear mechanisms of composites were examined. Wear resistances of ZTA_P/Fe composites were found to be 1.64–2.21 times as compared to the Cr15 specimen.

氧化锆增韧氧化铝陶瓷颗粒（ZTA _P）增强的高铬铸造铁基复合材料（ZTA _P / Fe 复合材料）是有前途的先进耐磨材料。然而，由于磨损和撕裂，陶瓷颗粒可能会从 Fe 基体上脱落，因为它们的界面结合性能低。在目前的工作中，我们研究了 ZTA _P / Fe 复合材料的界面特性和磨料磨损行为。结果表明，烧结在烧结颈的形成中起重要作用，因此影响 ZTA 陶瓷预制件的抗压强度和孔隙率。当在 1350 °C 下烧结 1 小时时，获得了最佳的抗压强度 (44.3 MPa) 和孔隙率 (25.2%)。随后，ZTA _P无明显缺陷的 /Fe 复合材料采用渗透铸造法制备。扫描电子显微镜、电子探针显微分析和透射电子显微镜也被用来分析复合材料界面层的微观结构和相成分。研究了施加的磨损载荷对复合材料的磨损行为演变和磨损机制的影响。发现ZTA _P /Fe 复合材料的耐磨性是 Cr15 试样的 1.64-2.21 倍。