钨对化学镀Ni-W-P镀层耐蚀性能的影响
Effect of Tungsten on Corrosion Resistance of Electroless Ni-W-P Coating
摘 要
采用电化学阻抗谱和X射线衍射法研究了Ni-W-P镀层中钨的含量对镀层在镀态和700 ℃热处理后耐蚀性能的影响。结果表明, 镀态Ni-W-P镀层的耐蚀性能主要取决于镀层的非晶化程度; 热处理后由于镀层表面产生钨的氧化膜, 耐蚀性能大幅度提高, 其耐蚀性能与镀层表面钨氧化膜的致密性有关。
热处理
耐蚀性
electroless plating
heat-treatment
corrosion resistance
Abstract
The effect of tungsten content on the corrosion resistance of as-plated and 700 ℃ heat-treated Ni-W-P deposits were investigated by electrochemical impendence spectroscopy(EIS), energy dispersive spectroscopy(EDS) and X-ray diffraction(XRD). The results showed that the corrosion resistance of as-plated coatings was determined by the amorphous degree. The corrosion resistance of heat-treated coatings was sharply improved and affected by the compactness of tungsten oxidation formed during the heat-treatment.
中图分类号 TG174.44
所属栏目 试验研究
基金项目 上海市重点学科建设项目(B503)
收稿日期 2010/7/12
修改稿日期 2010/9/22
网络出版日期
作者单位点击查看
备注姚志燕, 硕士研究生,
引用该论文: YAO Zhi-yan,XU Hong,HOU Feng,ZENG Bin. Effect of Tungsten on Corrosion Resistance of Electroless Ni-W-P Coating[J]. Corrosion & Protection, 2011, 32(5): 349
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参考文献
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