Wear Investigation of Aluminum Alloy Surface Layers Fabricated through Friction Stir Welding Method

Table 3

ANOVA wear rate.

Considerations	Dof	SS	MS	F	P value	Contribution level (%)
LD	2	0.000134	0.000067	72.02	0.000	83.75
SE	2	0.000006	0.000003	3.40	0.085	3.75
SS	2	0.000003	0.000002	1.68	0.246	1.85
LDSE	4	0.000004	0.000001	1.08	0.428	2.12
LDSS	4	0.000002	0.000001	0.55	0.704	1.25
SESS	4	0.000003	0.000001	0.79	0.563	1.85
Residual error	8	0.000007	0.000001			5.43
Total	26	0.000160