Advances in Materials Science and Engineering

Research Article

Multifeature Extraction of Three-Dimensional Topography of Carbon Steel Specimen during Fatigue Process

Table 1

Mean and variance values of each characteristic parameter (0 cycle).
Characteristic parameterMeanVariance
μ0.22941.57 × 10−4
δ3.59361.67 × 10−2
A130132.22 × 105
Sa1.67891.02 × 10−2
Δα0.98396.32 × 10−6