Optimization and Prediction of Tribological Behaviour of Al-Fe-Si Alloy-Based Nanograin-Refined Composites Using Taguchi with Response Surface Methodology

Table 4

Means table for SWR.

Level	A	B	C	D
1	3.521	3.980	2.665	2.630
2	2.820	2.364	2.815	2.699
3	2.004	1.999	2.864	3.015
Delta	1.517	1.981	0.199	0.386
Rank	2	1	4	3