| 等离子喷涂Al2O3涂层腐蚀失效机制 |
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| 引用本文： | 王引真,孙永兴,宋玉强,何艳玲.等离子喷涂Al2O3涂层腐蚀失效机制[J].腐蚀科学与防护技术,2002,14(4):227-229. |
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| 作者姓名： | 王引真 孙永兴 宋玉强 何艳玲 |
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| 作者单位： | 石油大学机电工程系,东营,257062 |
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| 基金项目： | 中国石油大学校科研和教改项目，国家博士科研项目，ZX9911，Y000305，， |
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| 摘 要： | 采用等离子喷涂方法制备Al2O3陶瓷涂层，研究 了涂层在不同腐蚀介质中的耐蚀性及其失效机制.结果表明，Al2O3涂层在碱性环境中耐 蚀性较强，在酸性环境中的耐蚀性较差，在盐类环境中的耐蚀性一般.陶瓷涂层在腐蚀介质 环境中工作时，因其内部非平衡相、夹杂物、残余应力及孔隙率的存在发生化学腐蚀.
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| 关 键 词： | 等离子喷涂 陶瓷涂层 耐蚀性 Al2O3 |
| 文章编号： | 1002-6495(2002)04-0227-03 |
| 修稿时间： | 2001年5月2日 |
WET CORROSION BEHAVIOR OF PLASMA SPRAY Al2O3 CERAMICS COATING ON STEEL 1Cr18Ni9Ti |
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| WANG Yinzheng,SUN Yongxing,SONG Yuqiang,HE Yanling.WET CORROSION BEHAVIOR OF PLASMA SPRAY Al2O3 CERAMICS COATING ON STEEL 1Cr18Ni9Ti[J].Corrosion Science and Protection Technology,2002,14(4):227-229. |
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| Authors: | WANG Yinzheng SUN Yongxing SONG Yuqiang HE Yanling |
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| Abstract: | Al 2O 3 ceramics coating was prepared by plasma spraying method.The corrosion resistance of Al 2O 3 ceramics coating in different corrosion media was investigated.The results showed that Al 2O 3 ceramics coating has higher corrosion resistance in alkaline solutions,poorer corrosion resistance in acid solutions and certain level of corrosion resistance in salt solutions.The corrosion of the ceramics coating can be attributed to chemical corrosion,which was enhanced by the no-equilibrium phase,inclusion,residual stress and micro porosity within the coating. |
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| Keywords: | plasma spraying ceramics coating corrosion resistance Al 2O 3 |
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