复合缓蚀剂对碳钢腐蚀率的影响研究

发布时间：2019-01-08 17:01

【摘要】：目的研究异抗坏血酸钠、六偏磷酸钠、D-葡萄糖酸钠和硫酸锌的复配物在软化水水质中对碳钢腐蚀率的影响。方法通过静态挂片和旋转挂片实验,研究不同浓度、pH值、温度等条件下,复合缓蚀剂对碳钢腐蚀率的影响,对腐蚀机理进行探讨。结果在软化水pH=10,缓蚀剂质量浓度为150 mg/L,温度为50℃的条件下,复合缓蚀剂对碳钢有较好的缓蚀效果,静态挂片实验中碳钢的腐蚀率为0.0303mm/a,缓蚀率为86.31%;旋转挂片实验中碳钢的腐蚀率为0.0350 mm/a,缓蚀率为96.12%。结论在软化水水质中,碳钢的腐蚀率随着复合缓蚀剂投药量、溶液pH值的增大而降低,随着温度的升高而增大。
[Abstract]:Objective to study the effect of sodium isoascorbate, sodium hexametaphosphate, sodium D-gluconate and zinc sulfate on the corrosion rate of carbon steel in soft water. Methods the influence of composite corrosion inhibitor on corrosion rate of carbon steel under different concentration, pH value and temperature was studied by static and rotating hanging sheet experiments, and the corrosion mechanism was discussed. Results when the concentration of pH=10, inhibitor in soft water was 150 mg/L, and the temperature was 50 鈩，

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