Dry reciprocal sliding wear behavior of nanocrystalline Fe ₈₈Si₁₂ alloy

Dry sliding wear behavior of nanocrystalline Fe₈₈Si₁₂ alloy has been investigated compared with coarse grained counterpart. The friction coefficient of the Fe₈₈Si₁₂ alloy changes slightly with grain size. But the wear resistance of the Fe₈₈Si ₁₂ alloy improves as the grain size decreases to 40 nm, and then weakens when the grain size decreases from 40 nm to 10 nm. The grain size has significantly effect on the tribological behavior of Fe₈₈Si ₁₂ alloy by modifying the hardness and the tribo-chemical interaction on the sliding zone during the wear process.