Rare-earth elements have been widely used in materials manufacturing to improve hardness and toughness. In this work, conventional, nanostructured, and CeO₂-modified WC-12Co powders were sprayed using high-velocity oxygen flame spraying. The erosion–corrosion behavior and interaction of erosion and corrosion of the coatings in 3.5 wt.% NaCl solution were investigated. In situ observation was employed to analyze the failure mechanism. The results showed that the CeO₂-modified WC-12Co coating possessed the best erosion–corrosion resistance, while the lowest corrosion resistance was exhibited by the conventional WC-12Co coating. The results also suggested that the erosion–corrosion mechanism in the three coatings was dominated by corrosion-accelerated erosion. However, the extent of acceleration of erosion by corrosion differed.

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hardness highvelocity oxygen flame interaction wc12co failure erosioncorrosion resistance materials manufacturing erosion corrosionaccelerated

Xiaomin Wang,Shengbo Ceng,Hui Chen,Xiangyang Wu,Zongqiu Hang,Mingjing Tu,Yan Liu,Guoqing Gou,.Erosion–Corrosion Property of CeO 2 -Modified HVOF WC-Co Coating. (),815-822.

Xiaomin Wang, et al."Erosion–Corrosion Property of CeO 2 -Modified HVOF WC-Co Coating"

Xiaomin Wang,Shengbo Ceng,Hui Chen,Xiangyang Wu,Zongqiu Hang,Mingjing Tu,Yan Liu,Guoqing Gou,"Erosion–Corrosion Property of CeO 2 -Modified HVOF WC-Co Coating"