摘要
通过对热浸镀铝锌合金层在不同介质中的腐蚀产物的表面电阻测量、交流阻抗法测R_p及C_d、X—射线衍射等试验,从宏观到微观得出相互一致的结论,即55Al—Zn层在各种介质的腐蚀产物为一层致密的、不易导电的异相薄膜,它主要由含结晶水的硫酸铝锌的非晶体物质组成。它的生成有助于提高55Al—Zn层的耐蚀性。
Based on the determination of surface resistance, alternative impedence, X-ray diffraction analysis and etc., we have proved that the corrosion product is a protective film composed of aluminum compound with densitive structure and low electrical conductivity, which may act as barrier to further attack.
出处
《材料工程》
EI
CAS
CSCD
北大核心
1991年第6期30-33,共4页
Journal of Materials Engineering
关键词
铝锌合金
镀层
耐蚀性
Hot dip coating, Protective film, Alternative Impedence.
