| 中温锌-钙系黑色磷化膜的耐蚀性能 |
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| 引用本文： | 仝晓刚,陈琳,罗宏,赵蛟.中温锌-钙系黑色磷化膜的耐蚀性能[J].材料保护,2009,42(3). |
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| 作者姓名： | 仝晓刚 陈琳 罗宏 赵蛟 |
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| 作者单位： | 四川理工学院材料与化学工程系,四川,自贡,643000 |
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| 摘 要： | 黑色磷化膜的耐蚀性、微观结构和组成成分的系统研究相对较少.为了获得耐蚀性能较好的中温锌.钙系黑色磷化膜,从游离酸度(FA)、温度、时间等方面考察了黑色磷化膜的耐蚀性,通过扫描电镜、x射线衍射分析对膜层的性能进行了表征,测试了黑色磷化膜层的电化学极化性能.结果表明:当磷化液的游离酸度为4～10点,温度为60～75℃,时间为10～20 min时,黑色磷化膜层的耐腐蚀性较好;黑色磷化膜的腐蚀电位比Q235钢基体高0.2313 V.
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| 关 键 词： | 黑色磷化 锌-钙系 中温 耐蚀性 |
Corrosion Resistance of Black Phosphating Coating of Zn-Ca System at Medium Temperature |
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| TONG Xiao-gang,CHEN Lin,LUO Hong,ZHAO Jiao.Corrosion Resistance of Black Phosphating Coating of Zn-Ca System at Medium Temperature[J].Journal of Materials Protection,2009,42(3). |
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| Authors: | TONG Xiao-gang CHEN Lin LUO Hong ZHAO Jiao |
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| Affiliation: | TONG Xiao-gang,CHEN Lin,LUO Hong,ZHAO Jiao (Depart-ment of Materials , Chemical Engineering,Sichuan University of Science , Engineering,Zigong 643000,China) |
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| Abstract: | Black phosphating coating with superior corrosion resistance was prepared from a Zn-Ca sys-tem at medium temperature. The factors such as free acidity,temperature and phosphating time on the corrosion resistance of the black phosphating coating were investigated. The microstrue-ture and phase composition of the black phosphating coating were analyzed by means of scanning electron microscopy (SEM) and X -ray diffraction (XRD). And the potential -time curve of the coating was measured as well. Results show th... |
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| Keywords: | black phosphating coating Zn-Ca system medium temperature corrosion resistance |
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