Friction Performance Optimization of Chemically Deposited Ni-P-W Coating Using Taguchi Method

Table 5

Response table for S/N ratio.

Level	A	B	C	D
1	5.468	5.288	5.326	5.483
2	5.338	4.809	4.726	4.678
3	4.117	4.827	4.871	4.762
Delta	1.351	0.479	0.600	0.805
Rank	1	4	3	2
Total mean S/N ratio = 4.974417