Electrochemical Estimation of the Corrosion Rate of Magnesium/Aluminium Alloys

Table 2

Comparison between direct mass losses and the corresponding electrochemical estimates.

Material	Time	Directly measured mass losses (mg/cm^2)	Electrochemical estimates (mg/cm^2)	Ratio
	1 h	13.04	1.37	9.52
Mg	3 h	39.09	5.14	7.61
	6 h	78.18	16.00	4.89
	1 d	5.52	3.36	1.64
AZ31	7 d	38.6	23.91	1.61
	10 d	55.4	34.84	1.59
	1 d	0.074	0.19	0.39
AZ80	7 d	0.52	1.30	0.40
	10 d	0.74	1.85	0.40
	1 d	0.088	1.11	0.079
AZ91D	7 d	0.62	7.64	0.081
	10 d	0.89	10.82	0.082