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利用紫外光电子能谱(UPS)对比表征了纳米和普通晶粒的304不锈钢、工业纯铝以及工业纯铁室温时的价电子结构。利用X射线光电子能谱(XPS)表征了上述材料在不同浓度盐酸溶液中浸泡不同时间后,表面氧化膜的电子结构;以及纳米和普通晶粒的304不锈钢在空气中高温氧化(室温至900℃升温阶段,900℃下恒温24 h)后,氧化膜的电子结构。根据这些实验结果建立了金属材料腐蚀性能与材料的价电子结构和氧化膜电子结构之间的关系,提出了金属材料腐蚀性能本征参量概念。
The valence electron structures of 304 stainless steel, industrial pure aluminum and industrial pure iron at room temperature were characterized by ultraviolet photoelectron spectroscopy (UPS). The electronic structure of the surface oxide film was characterized by X-ray photoelectron spectroscopy (XPS) after the above materials were soaked in different concentrations of hydrochloric acid for different time. The nanosized and ordinary grains of 304 stainless steel were oxidized in air at high temperature (room temperature to 900 ℃ The temperature rise stage, 900 ℃ constant temperature 24 h), the electronic structure of the oxide film. Based on these experimental results, the relationship between the corrosion resistance of metallic materials and the valence electron structure and electronic structure of the oxide films was established, and the concept of intrinsic parameters of the corrosion properties of metallic materials was proposed.