Surface correlation of running-in (dataset).xlsx

Based on the three-dimensional (3D) surface morphology parameter evaluation method, in this study, experiments were designed to analyze the effect of the initial surface morphology on that after running-in, and investigated the correlation of 3D surface morphology parameters before and after running-in. The results demonstrated that the morphology characterization parameters, i.e., Sa, Sq, Sv, Sdc, Str, Sdq, and Sdr under different working conditions maintained a strong autocorrelation ( the correlation coefficient of the same parameter). Moreover, the cross-correlation (the correlation coefficient between different parameters) among height parameters (Sq), hybrid parameters (Sdq, Sdr), and functional parameters (Sdc, Sk) was strong.