Microstructure and Corrosion Behavior of Ni-Alloy/CrN Nanolayered Coatings

Table 1

The 𝐸_corr and 𝐼_corr values of various coating systems.

Materials	𝐸corr (V versus SCE)	𝐼corr (A/cm^2)
420 SS	−0.64	1.42 × 10^-5
NiAl	−0.39	1.20 × 10^-5
NiP	−0.50	1.34 × 10^-6
CrN	−0.45	1.14 × 10^-6
NiAl/CrN	−0.38	1.18 × 10^-5
NiP/CrN	−0.33	7.50 × 10^-6

^∗The test was conducted in a 3.5 M NaCl solution at room temperature.