The effect of normal force on fretting corrosion behavior of Inconel 690 in 3.5% sodium chloride

The effect of normal force on fretting corrosion behaviors of Inconel 690 in 3.5% sodium chloride was investigated. The results indicated that fretting corrosion behaviors strongly depended on fretting regime and normal force. In gross slip regime, the wear volume increased but coefficient of friction (COF) decreased with increasing normal force. The damage mechanism was nanostructures and delamination cracks, and the tribologically transformed...