Investigation of Magnesium and Chromium Fillers FSW Dissimilar Joint of AA6063 and AA 5154

Table 10

ANOVA test results for corrosion rate.

Sources	Sum of squares	Degree of freedom	Mean square	F-value	P value	Significance
Model	68.4	20	3.42	62.3	<0.0001	Significant
R^∗	2.41	1	2.41	43.84	<0.0001
W^∗	2.08	1	2.08	37.8	<0.0001
P^∗	0.5183	1	0.5183	9.44	0.0106
C^∗	0.7852	1	0.7852	14.3	0.003
M^∗	1.62	1	1.62	29.57	0.0002
RW^∗	0.663	1	0.663	12.08	0.0052
RP^∗	1.49	1	1.49	27.19	0.0003
RC	0.0046	1	0.0046	0.0836	0.7778
RM^∗	0.7784	1	0.7784	14.18	0.0031
WP	0.0738	1	0.0738	1.35	0.2706
WC	0.1151	1	0.1151	2.1	0.1755
WM^∗	0.3724	1	0.3724	6.78	0.0245
PC^∗	0.7784	1	0.7784	14.18	0.0031
PM	0.2259	1	0.2259	4.11	0.0674
CM^∗	0.46	1	0.46	8.38	0.0146
R^2^∗	23.07	1	23.07	420.25	<0.0001
W^2^∗	23.07	1	23.07	420.25	<0.0001
P^2^∗	3.82	1	3.82	69.65	<0.0001
C^2^∗	8.26	1	8.26	150.49	<0.0001
M^2^∗	13.69	1	13.69	249.5	<0.0001
Residual	0.6038	11	0.0549
Lack of fit	0.3354	6	0.0559	1.04	0.4926	Not significant
Pure error	0.2684	5	0.0537
Cor total	69	32
Std. deviation	0.234	R^2	0.9912
Mean	3.64	Adjusted R^2	0.9753
CV (%)	6.43	Predicted R^2	0.8684
PRESS	9.08	Adeq. precision	23.5417