The electrochemical corrosion behavior of an aged Fe-18Cr-15Mn-0.66 N high-nitrogen austenitic stainless steel in 3.5 wt.% NaCl solution was studied using the measurements of polarization curves and electrochemical impedance spectroscopy, and the composition of the passive films formed on the HNSS was investigated using x-ray photoelectron spectroscopy (XPS). XPS analyses results showed that the passive films formed in this solution were composed of Cr oxide/hydroxide (mainly) and iron oxides (partially). The XPS depth profile suggested that near the passive film /HNSS interface, both Cr and Fe contents increased, but the Cr and Fe oxide/hydroxide contents decreased.

使用极化曲线和电化学阻抗谱测量，研究了时效 Fe-18Cr-15Mn-0.66 N 高氮奥氏体不锈钢在 3.5 wt.% NaCl 溶液中的电化学腐蚀行为，以及在其上形成的钝化膜的成分。使用 X 射线光电子能谱 (XPS) 研究了 HNSS。XPS 分析结果表明，在该溶液中形成的钝化膜由 Cr 氧化物/氢氧化物（主要）和铁氧化物（部分）组成。XPS 深度剖面表明，在钝化膜/HNSS 界面附近，Cr 和 Fe 含量均增加，但 Cr 和 Fe 氧化物/氢氧化物含量降低。