Experimental Study on the Influence of Sulfate Reducing Bacteria on the Metallic Corrosion Behavior under Disbonded Coating

Table 4

The electrochemical parameters.

Simulated solution	Experiment; time	Stripping depths/mm	Disbonded thickness; (mm)	The corrosion current density/A/cm^2	The self-corrosion potential/mV	The ratio of anode Tafel slope and cathode Tafel slope
Soil simulated solution	1 d	0	0.5	23.1029	−702	1.7328
			1.0	35.1429	−719	1.6204
		80	0.5	19.2514	−722	1.6538
			1.0	35.3486	−724	1.7384
		160	0.5	11.5943	−718	1.5963
			1.0	34.3171	−718	1.5686
	7 d	0	0.5	43.7829	−708	1.5726
			1.0	38.2800	−719	1.4733
		80	0.5	30.3086	−722	1.5250
			1.0	38.1543	−717	1.3973
		160	0.5	26.0457	−725	1.4844
			1.0	36.8343	−716	1.3790
	14 d	0	0.5	45.2457	−701	1.4111
			1.0	45.8971	−718	1.4050
		80	0.5	32.3429	−717	1.4049
			1.0	48.0971	−720	1.3542
		160	0.5	27.7543	−723	1.4831
			1.0	46.9549	−713	1.3135
Soil simulated solution + SRB	1 d	0	0.5	25.8171	−688	1.8134
			1.0	35.6800	−707	1.8220
		80	0.5	20.2457	−696	1.6897
			1.0	31.9029	−710	1.6832
		160	0.5	19.5143	−700	1.6727
			1.0	31.7543	−705	1.6649
	7 d	0	0.5	30.9143	−688	1.7509
			1.0	66.9429	−692	1.7047
		80	0.5	28.4971	−692	1.7250
			1.0	67.3714	−706	1.6529
		160	0.5	21.7143	−695	1.6395
			1.0	65.6229	−701	1.5372
	14 d	0	0.5	78.5143	−675	1.7515
			1.0	100.4343	−692	1.5221
		80	0.5	87.6457	−680	1.2216
			1.0	96.6857	−710	1.4924
		160	0.5	95.4914	−676	1.0870
			1.0	98.8457	−701	1.4101
Soil simulated solution + SRB + fungicide	1 d	0	0.5	16.3886	−694	1.9859
			1.0	33.6514	−708	1.9256
		80	0.5	19.0400	−692	1.4779
			1.0	34.5714	−719	1.5530
		160	0.5	21.2457	−696	1.3274
			1.0	32.9943	−713	1.6431
	7 d	0	0.5	33.4433	−698	1.6243
			1.0	54.1429	−695	1.7249
		80	0.5	43.1143	−732	1.4063
			1.0	51.7086	−703	1.7372
		160	0.5	47.4286	−691	1.4588
			1.0	50.7714	−696	1.5878
	14 d	0	0.5	48.6114	−684	1.4157
			1.0	79.0457	−690	1.6985
		80	0.5	63.8800	−689	1.4475
			1.0	77.1771	−712	1.4383
		160	0.5	75.1714	−684	1.4206
			1.0	78.0971	−700	1.4900