Optimization of Electroless Ni-P-W Coatings for Minimum Friction and Wear Using Grey-Taguchi Method

Table 9

Results of confirmation test.

	Initial parameter combination	Optimum parameter combination
		Prediction	Experimentation
Setting level	A2B2C2	A1B2C1
COF	0.51642		0.39932
Wear depth	11.114		7.258
Grade	0.53665	0.811367	0.953008