Corrosion Behaviour of Heat-Treated Aluminum-Magnesium Alloy in Chloride and EXCO Environments

Table 5

Gravimetric corrosion rate (mm/yr) for the 1.51% Mg specimen.

Days	NaCl solution		FeCl3		EXCO solution
	As-cast	RRA	As-cast	RRA	As-cast	RRA
0	0.000	0.000	0.000	0.000	0.000	0.000
7	0.000	0.000	1.156	1.156	0.771	0.000
14	0.000	0.000	0.964	0.578	0.578	0.385
21	0.000	0.000	0.899	0.385	0.642	0.514
28	0.000	0.000	0.771	0.385	0.578	0.482
35	0.077	0.000	0.694	0.385	0.54	0.463
42	0.064	0.000	0.579	0.386	0.579	0.515