| Corrosion-erosion resistance of Zn-Al co-cementation coatings on carbon steels in aqueous media |
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| 作者姓名： | 李德志 何业东 王德仁 张召恩 齐慧滨 高唯 |
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| 作者单位： | [1]BeijingKeyLaboratoryforCorrosion,ErosionandSurfaceTechnology,UniversityofScienceandTechnologyBeijing,Beijing100083,China [2]EngineeringSchool,TheUniversityofAuckland,NewZealand |
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| 摘 要： | A novel Zn-Al co-cementation coating was obtained by a pack cementation method,This coating possesses a two-layered structure,The outer layer is mainly composed of Fe2Al3 and FeAl intermetallics with a small amount of Zn,and the inner layer consists of Zn,Fe and a small amount of Al.The corrosion-erosion resistance of Zn-Al con-cementation coatings on carbon steel was studied by a rotary corrosion method in various NaCl and H2S containing solutions and relevant SiO2 containing media,The experimental results are compared with those of carbon steels and the sherardizing and aluminizing coating ,showing that the Zn-Al co-cementation coating have excellent corrosion-erosion resistance in various aqueous media.
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| 关 键 词： | 碳钢 抗腐蚀 水媒介 锌铝共渗 |
Corrosion-erosion resistance of Zn-Al co-cementation coatings on carbon steels in aqueous media |
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| Abstract: | A novel Zn-Al co-cementation coating was obtained by a pack cementation method. This coating possesses a two-layered structure. The outer layer is mainly composed of Fe2Al5 and FeAl intermetallics with a small amount of Zn, and the inner layer consists of Zn, Fe and a small amount of Al. The corrosion-erosion resistance of Zn-Al co-cementation coatings on carbon steel was studied by a rotary corrosion method in various NaCl and H2S containing solutions and relevant SiO2 containing media. The experimental results are compared with those of carbon steels and the sherardizing and aluminizing coatings, showing that the Zn-Al co-cementation coatings have excellent corrosion-erosion resistance in various aqueous media. |
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| Keywords: | Zn Al co cementation corrosion erosion resistance aqueous media |
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