Table 4.

Mean values, SD, and 95% confidence interval (CI) for the corrosion potential (E_corr), corrosion current density (I_corr), and pitting potential (E_pit) for all components*

Sample number	Ecorr (V versus SCE)			Icorr (mA/cm2)			Epit (V versus SCE)			Alloy category
	Mean	SD	95% CI	Mean	SD	95% CI	Mean	SD	95% CI
SA-1	−0.751	0.005	−0.759 to −0.742	7.46 × 10−4	1.37 × 10−4	5.28 × 10−4 to 9.64 × 10−4	0.505	0.035	0.450–0.561	Cast
SA-2	−0.755	0.004	−0.762 to −0.748	3.56 × 10−4	2.73 × 10−4	0−7.90 × 10−4	0.469	0.027	0.425–0.512	Cast
SA-3	−0.755	0.005	−0.763 to −0.748	6.24 × 10−4	4.69 × 10−4	0−1.37 × 10−3	0.486	0.080	0.359–0.613	Cast
SA-4	−0.761	0.001	−0.770 to −0.753	1.57 × 10−4	3.39 × 10−5	1.33 × 10−4 to 4.62 × 10−4	0.636	0.000	0.632–0.640	Wrought
HA-1	−0.755	0.006	−0.765 to −0.745	9.72 × 10−5	3.14 × 10−5	4.72 × 10−5 to 1.47 × 10−4	0.615	0.046	0.543–0.688	Wrought
HA-2	−0.757	0.003	−0.762 to −0.753	1.06 × 10−4	2.95 × 10−5	5.89 × 10−5 to 1.53 × 10−4	0.681	0.032	0.629–0.732	Wrought
HA-3	−0.756	0.008	−0.766 to −0.747	1.04 × 10−4	3.07 × 10−5	6.59 × 10−5 to 1.42 × 10−4	0.480	0.024	0.450–0.510	Wrought

* E_corr and E_pit are relative to the reference electrode (saturated calomel electrode [SCE]).