The time-dependent experiment was performed to investigate the corrosion behavior of low-temperature liquid nitrocarburized (LNC) 304 austenitic stainless steel in wet H₂S environments. Characteristics of H₂S corrosion products, as well as localized corrosion behavior, were investigated using X-ray diffraction (XRD), scanning electron microscopy, X-ray photoelectron spectroscopy (XPS), and optical profilometry. The results revealed that the untreated steels, of which the H₂S corrosion product layer on the untreated surface thickened but displayed a layered defect structure as the corrosion proceeded, had a higher weight loss than the LNC. Energy-dispersive spectroscopy (EDS) served to reveal the relationship between corrosion behavior and the content of sulfur, chromium, and other elements, and the valences of these elements were illustrated by XPS. The surface morphology after removing corrosion products showed that the presence of nitrocarburized S phase could prevent general corrosion and inhibit pit propagation.

进行了随时间变化的实验，以研究低温液态氮碳共渗（LNC）304奥氏体不锈钢在潮湿H ₂ S环境中的腐蚀行为。使用X射线衍射（XRD），扫描电子显微镜，X射线光电子能谱（XPS）和光学轮廓分析法研究了H ₂ S腐蚀产物的特性以及局部腐蚀行为。结果表明，未经处理的钢中，H ₂未处理表面上的S腐蚀产物层变厚，但随着腐蚀的进行而显示出分层的缺陷结构，其重量损失高于LNC。能量色散光谱法（EDS）揭示了腐蚀行为与硫，铬和其他元素的含量之间的关系，并通过XPS说明了这些元素的化合价。去除腐蚀产物后的表面形态表明，氮碳共渗S相的存在可以防止全面腐蚀并抑制凹坑扩展。