紫外光照射对2024铝合金表面 钛盐转化膜形成的影响
Effect of UV irradiation on the formation of titanium-salt conversion coating on Al 2024
采用由硫酸氧钛、氟化钠为主盐的转化液，在60℃、pH 5-5.5、紫外光照射条件下处理5min，在2024铝合金表面制备了一种钛盐转化膜，中性盐雾时间超过96小时。EDS、XPS分析结果表明, 转化膜主要由O、Ti、Al、F、Mg、Cu等元素组成，转化膜中的Ti主要以TiO2的形式存在。电化学测试结果表明，紫外光照射条件下转化反应处理的2024铝合金腐蚀电位正移和阳极钝化区的形成，使得2024铝合金惰性、防腐性能显著增强。
titanium-salt conversion coating, which was prepared on Al 2024 with a conversion solution made mainly of TiOSO4, NaF under the condition of 60℃, pH 5-5.5, UV irradiation and 5 minutes, could undergo more than 96h of neutral salt spray test. The energy disperse spectroscopy (EDS) and x-ray photoelectron spectroscopy (XPS) analysis showed that the primary elements of conversion coating were O, Ti, Al, F, Mg, Cu and Ti element existed mainly in the form of TiO2. The result of electrochemical tests demonstrated that the more positive corrosion potential and an anode passivation area of Al 2024 treated by conversion reaction under UV irradiation made the corrosion resistance of Al 2024 improved significantly.
郭瑞光、王娜娜、房新建、张力
有色金属冶炼金属学、热处理
2024铝合金转化膜钛盐紫外光照射
l 2024chemical conversion coatingtitanium-saltUV irradiation
郭瑞光,王娜娜,房新建,张力.紫外光照射对2024铝合金表面 钛盐转化膜形成的影响[EB/OL].(2011-12-13)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201112-321.点此复制
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