Corrosion Inhibition of Cu-Ni (90/10) Alloy in Seawater and Sulphide-Polluted Seawater Environments by 1,2,3-Benzotriazole

Table 16

Elemental composition of Cu-Ni (90/10) alloy obtained by SEM-EDX in seawater and sulphide-polluted seawater in the absence and presence of BTAH after 30-day immersion period.

Seawater		Seawater + 10 ppm sulphide		Seawater + 3.33 mM BTAH		Seawater + 10 ppm sulphide + 3.33 mM BTAH
Element	Atom (%)	Element	Atom (%)	Element	Atom (%)	Element	Atom (%)
O	54.5	O	39.37	C K	30.47	C K	28.58
S	0.6	S	17.34	N K	4.14	N K	3.25
Cl	1.29	Cl	2.02	O K	2.64	O K	6.51
Fe	0.97	Fe	0.56	Fe K	0.85	Fe K	0.87
Ni	6.17	Ni	4.59	Ni K	7.1	Ni K	7.81
Cu	36.47	Cu	36.12	Cu K	54.8	Cu K	52.98