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| Study on Properties of Zn-Fe-SiO2 Composite Coatings |
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| 昆明 650093）昆明理工大学 昆明 650093）昆明理工大学 |
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Abstract High-iron(Fe mass%>1%)and low-iron(Fe mass%<1%)Zn-Fe-SiO2 composite coatings have been obtained from sulfate bath and chloride bath with optimum technics.Corrosion resistance,adhesion,porosity and hydrogen embrittlement of Zn-Fe-SiO2 composite coatings with different thickness have been tested systematically,and these data have been compared with the properties of Zn and Zn-Fe alloy.The results show that corrosion resistance and all other properties of Zn-Fe-SiO2 composite coatings are better than that of Zn and Zn-Fe alloy.Therefore,the Zn-Fe-SiO2 composite electrodepositing technique is superior to Zn and Zn-Fe alloy electroplating,with a great prospect in application.
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Received: 13 May 2005
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