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测定了Fe-W非晶镀层在酸溶液中的腐蚀速率,并与SUS304不锈钢进行比较。采用AES和XPS对Fe-W非晶镀层及其在1 mol/LHCl溶液中形成的钝化膜进行了分析。通过测定膜层成份和化学价态,并进行深度剖析,确定钝化膜厚度约700～900nm,钝化膜的化学结构式为WO_3·WO_2OH·nH_2O。
The corrosion rate of Fe-W amorphous coating in acid solution was measured and compared with SUS304 stainless steel. Fe-W amorphous coatings and their passivation films formed in 1 mol / LHCl solution were analyzed by AES and XPS. The chemical composition of the passivation film is WO_3 · WO_2OH · nH_2O by determining the composition and valence of the film and conducting in-depth analysis. The passivation film thickness is about 700-900 nm.