Effects of Alloying Elements (Cr, Mn) on Corrosion Properties of the High-Strength Steel in 3.5% NaCl Solution

Table 6

Summary on the integral intensity ratio of Fe L₃ edge peak to Fe L₂ edge peak depending on various positions among rust formed on REF, 18Mn, and 18Mn5Cr for 56 days in 3.5% NaCl solution at 60^oC.

Alloy	Distance from metal/rust interface (μm)	Points in Figures 6–8	I(Fe L3)/I(Fe L2)
REF	0.133	e1 in Figure 6(a)	6.01
	0.333	e2 in Figure 6(a)	5.50
	0.320	e3 in Figure 6(a)	6.26
	0.400	e4 in Figure 6(a)	6.82
	0.827	e5 in Figure 6(a)	5.97
	0.880	e6 in Figure 6(a)	7.06
	1.100	e7 in Figure 6(a)	6.37
18Mn	0.165	e1 in Figure 7(a)	5.65
	0.235	e2 in Figure 7(a)	5.46
	0.424	e3 in Figure 7(a)	5.57
18Mn5Cr	0.036	e1 in Figure 8(a)	4.65
	0.100	e2 in Figure 8(a)	5.46
	0.229	e3 in Figure 8(a)	5.36