桂艳.热浸Zn-Ti合金镀层的耐腐蚀性能[J].表面技术,2008,37(5):33-35.
GUI Yan.Corrosion Resistance of Hot Dip Zn-Ti Coating[J].Surface Technology,2008,37(5):33-35 |
| 热浸Zn-Ti合金镀层的耐腐蚀性能 |
| Corrosion Resistance of Hot Dip Zn-Ti Coating |
| 投稿时间：2008-07-02 修订日期：2008-10-10 |
| DOI： |
| 中文关键词: 热浸镀锌 Zn-Ti镀层 耐蚀性能 |
| 英文关键词:Hot dip galvanizing Zn-Ti coating Corrosion resistance |
| 基金项目: |
| 作者 | 单位 |
| 桂艳 | 广州番禺职业技术学院，广东广州511483 |
|
| Author | Institution |
| GUI Yan | Guangzhou Panyu Polytechnic, Guangzhou 511483 , China |
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| 中文摘要: |
| 为了抑制热镀锌过程中因含硅活性钢引起的镀层超厚生长，采用在纯锌浴中加Ti的方法，研究了热浸Zn-Ti合金镀层的耐蚀性能。采用浸泡腐蚀、电化学极化、交流阻抗以及X射线光电子能谱等方法，研究了热浸Zn-Ti合金镀层的耐蚀性能。结果表明：Zn-Ti合金镀层在5% NaCl溶液中的自发腐蚀倾向小于Zn镀层，其极化电阻和交流阻抗增大，腐蚀电流密度减小，耐蚀性能提高。Zn-Ti镀层表面形成的氧化膜由Zn0和Tio2组成。Zn-Ti合金镀层的耐腐蚀性能优于纯锌镀层是由于在镀层表面形成了更加稳定的Ti02膜。 |
| 英文摘要: |
| Zn-Ti galvanizing coatings were prepared on low carbon steel by hot dip galvanizing in Zn-Ti baths in order to restrain the growth of alloy layer. The corrosion resistance of the coatings was studied by immersion test, electrochemical polarization, electrochemical impedance spectroscopy ( EIS) and X-ray photoelectron spectrum ( XPS) analysis. The corrosion rate of Zn-0.05% Ti coating is less than that of pure zinc coating in 50/o NaCl solution. Zn-0. 050/o Ti coating shows lower corrosion current, increased polarization resistance and electrochemical impedance, presents the better corrosion resistance than pure zinc coating. The oxide film of Zn-Ti coating is composed of Zno and Ti02. The excellent corrosion resistance of Zn-Ti coating results from the reason that the present of more steady Ti02 film. |
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