Abstract
Three types of ceramic/Fe alloy composites were successfully fabricated by a pressureless infiltration. The network ceramic/ferroalloy interface was analyzed by SEM, EDS and the room temperature sliding wear behaviors of the composites were investigated by an optimal SRV testing machine. The results showed that the liquid Fe alloy can infiltrate Ni-doped alumina ceramics and the surface metallization of the ceramics enhances the wettability and promotes the spontaneous infiltration process. The abrasion loss increased with the rising of load and friction frequency and the network ceramic/spheroidal graphite iron had a better wear behavior than those network ceramics reinforced with abrasion-resistant steel and high chromium iron. However, for the three composites, the high-chromium iron matrix composite with higher hardness has a higher abrasive resistance than the others.
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