Research Article

Optimization of Multiple Roughness Characteristics of Chemically Deposited Ni-P-W Coating Using Weighted Principal Component Analysis

Table 4

Experimental results for roughness parameters.

Sample no. 𝑅 𝑎 ( 𝜇 m) 𝑅 𝑞 ( 𝜇 m) 𝑅 s k 𝑅 k u 𝑅 s m (mm)

10.410.521.055.560.146
20.430.570.656.710.133
30.620.853.977.390.141
40.410.531.16.770.183
50.460.590.657.770.199
60.460.611.955.260.169
70.40.532.595.80.173
80.430.593.047.030.153
90.390.490.434.070.15
100.350.440.593.520.226
110.480.590.43.730.222
120.390.572.175.90.167
130.290.381.617.280.117
140.630.751.125.790.183
150.360.450.916.510.151
160.610.731.076.680.055
170.610.791.437.490.053
180.620.80.95.340.058
190.440.561.086.290.127
200.450.591.226.860.065
210.971.321.549.950.08
220.450.581.087.910.081
230.440.550.85.920.147
240.761.083.076.630.149
250.490.682.923.010.106
260.410.521.089.160.093
270.480.621.036.610.102