ABSTRACT
A probability distribution work for cross-sectional area of 15 high performance steel (HPS) specimens subjected to neutral salt spray accelerated corrosion were investigated experimentally. A 3D scanning technology was employed to quantify the geometric features. The probabilistic distribution of the cross-sectional area of specimens, and the width and depth of pits were studied. Results show that the shape of pits under salt spray accelerated corrosion is part of a full semi-ellipsoid for the big pits, and cone for the small pits. The cross-sectional distribution of the specimens exhibits obvious uniform characteristics. Corrosion has a slight effect on the width distribution but a significant effect on the depth and area. Both of the width and depth of pits and cross-sectional area of specimen fit well with the normal distribution.
