<strong>B30</strong>铜镍合金原始膜对其腐蚀的影响

B30铜镍合金原始膜对其腐蚀的影响

王立芳, 商孟超, 高希钰, 刘贵昌, 孙文

Effect of Inherent Films Resulted from Manufacturing Process on Corrosion of B30 Cu-Ni Alloy

WANG Lifang, SHANG Mengchao, GAO Xiyu, LIU Guichang, SUN Wen

表3 A试样在海水中浸泡60 d后EIS拟合结果

Table 3 Fitting parameters of EIS of A sample immersed in seawater for 60 d

Time d	R_s kΩ·cm²	R_ct kΩ·cm²	CPE₁ 10^-5 F·cm^-2	n₁	R_fout kΩ·cm²	CPE₂ 10^-5 F·cm^-2	n₂	R_fin kΩ·cm²	CPE₃ 10^-5 F·cm^-2	n₃
0	0.012	17.73	1.27	0.89	-	-	-	119.30	9.37	0.75
1	0.013	1.01	6.74	0.89	-	-	-	6.67	9.06	0.81
3	0.017	8.82	9.48	0.81	-	-	-	11.34	5.61	0.81
5	0.016	15.12	3.61	0.89	-	-	-	18.79	16.32	0.87
7	0.016	16.19	5.03	0.80	-	-	-	25.29	23.95	0.83
10	0.014	17.81	17.71	0.83	-	-	-	52.20	2.10	0.86
15	0.015	18.50	8.422	0.90	0.019	1.35	0.63	118.00	2.51	0.73
20	0.017	18.42	11.45	0.90	0.050	2.46	0.61	148.60	0.93	0.77
25	0.018	19.83	11.01	0.87	0.036	1.81	0.66	153.30	1.15	0.98
30	0.014	15.93	7.39	0.81	0.138	3.58	0.56	174.10	5.64	0.84
40	0.012	19.20	15.68	0.90	0.143	0.94	0.67	183.20	1.01	0.75
50	0.010	21.91	22.76	0.87	0.026	1.80	0.66	212.10	0.86	0.97
60	0.016	22.24	17.45	0.74	0.090	0.77	0.69	214.50	3.06	0.82