| 摘要: |
| 为研究耐蚀性更高但生产成本与传统热镀锌成本相当的新镀层, 制备了添加微量钛元素的热浸镀锌层, 分别从表观质量、镀层厚度、电化学测试、盐雾腐蚀试验和全浸实验考察了添加微量钛元素对热浸镀锌层性能的影响, 扫描电镜观察盐雾试验后镀层表面形貌。结果表明, 添加微量钛以后镀层表观质量有所提高,镀层厚度明显减薄, 镀层在海水中耐蚀性能提高。微量钛添加量为0. 03%～0. 04%时耐蚀效果最佳。 |
| 关键词: 锌钛合金 热浸镀 电化学测试 耐蚀性能 |
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| Effect of Ti addition on hot-dip zinc coating |
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| Abstract: |
| For acquiring new alloy coating with good corrosion resistance and production cost equivalence with hot-dip zinc coating, the hot-dip Zn-Ti alloy coating of containing 0. 01%～0. 08% Ti on the surface of Q235 steel have been prepared. The surface quality and the coating thickness has been analyzed. Electrochemical test and neutral salt spray test and immersed experiment have been done for Zn-Ti alloy coating of various contents. After salt spray test, surface morphology was observed by using scanning electron microscope (SEM). The results showed that compared with hot-dip zinc coating, the corrosion resistance of hot-dipped Zn-Ti alloy coating is improved obviously and the optimum addition of Ti is 0. 03%～0. 04%, the coating has excellent corrosion resistance and surface quality. |
| Key words: Zn-Ti alloy hot-dip electrochemistry test corrosion resistance |
