Interfacial bonding and abrasive wear behaviours of the iron matrix composites

Ceramic particles reinforced iron matrix composites attract considerable interest in the industrial engineering field due to the ceramic’s excellent fatigue and wear resistance. ZTA ceramic particle has been regarded as an ideal reinforcement phase. In this study, three-body abrasive wear behaviours and the mechanism of the ZTA/Fe composites and high chromium white cast iron Cr15 standard samples were investigated. The wear resistance of the ZTA/Fe composite was superior to the Cr15 standard sample under SiO2 abrasives. The extruded ZTA could protect the matrix surrounding ZTA ceramic particles. However, ZTA ceramic particles were cut together with the Cr15 matrix under SiC abrasives. The wear mechanism of the composites was a combination of the cutting and fatigue for SiC abrasives. This work was funded by the National Key Research and Development Programof China [grant number 2021YFB370 1204], National Natural Science Foundation of China [grant number 52175184], the Fundamental Research Funds for the Central Universities of China [grant number xzy012019010], the Key-Area Research andDevelopment Program of Guangdong Province [grant number 2019B010942001], the Natural Science Basic Research Program of Shaanxi [grant number 2021JM-011], Open Fund of National Joint Engineering Research Center for abrasion control and moulding of metal materials [grant number HKDNM201901], the China Postdoctoral Science Foundation [grant number 2021M702558], the Guangxi Innovation Driven Development Project [grant number GUIKEA A18242001]. Cong Li would like to acknowledge the support of the China Scholarship Council.