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| 纳米稀土添加剂对WC/12Co涂层盐雾腐蚀性能的影响 |
| The Impact of Rare Earth Addition on the Corrosion Performance of WC/12Co Coating |
| 投稿时间：2016-03-17 修订日期：2016-05-10 |
| DOI： |
| 中文关键词: WC/12Co 涂层 盐雾腐蚀 稀土 微观组织 |
| 英文关键词::WC/12Co Coating Salty fog corrosion Rare-earth Microstructure |
| 基金项目: |
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| 中文摘要: |
| 用超音速火焰喷涂法制备了稀土添加剂含量为0 %、1.5 %、2.0 %的3种WC/12Co涂层,并用盐雾腐蚀方法进行了涂层耐蚀性测试。结果表明,稀土的加入较好地提高了涂层材料的耐蚀性能,且当稀土添加量为1.5 %时耐蚀性最好。腐蚀主要源于WC和Co相的氧化以及基体与涂层之间的电化学作用。 |
| 英文摘要: |
| :In the present paper,WC/12Co cermet coatings with different content of CeO2 additives were made by high velocity oxy fuel (HVOF) spraying on 45# steel.The results of salty fog corrosion indicates the coatings with addition of rare earth have excellent corrosion resistance,and the suitable content of CeO2 is 1.5 wt.%.Combing with the domestic related research,the corrosion was mainly caused by the WC and Co oxidation and electrochemical effects between substrate and coating. |
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