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Roughness parameters of experimental samples and counterparts.
| Material | Mean Roughness Sa [nm] | RMS Roughness Sq [nm] | Skewness Ssk [-] |
Kurtosis Sku [-] |
|---|---|---|---|---|
| ZrO2 (ball) | 7.8 | 10.7 | −0.7878 | 12.9287 |
| X46Cr13 (ball) | 37.6 | 58.4 | −1.8851 | 14.2136 |
| X153CrMoV12 | 342.7 | 440.2 | −0.3915 | 0.4039 |
| X37CrMoV5-1 | 501.6 | 619.6 | −0.0659 | −0.6195 |
| X45NiCrMo4 | 300.8 | 441.1 | −0.4789 | −0.7263 |
