Micro-Crystalline Coatings of Co-Cr Dispersed with Y2O3 Deposited by Series Electro-Pulse Discharge

被引：0
|
作者：
徐强
何业东
齐慧滨
王德仁
李正伟
高唯
机构：
[1] Department of Chemical and Material Engineering The University of Auckland Beijing 100083
[2] Beijing Key Laboratory of Corrosion Erosion and Surface Technology
[3] New Zealand
[4] China
[5] Department of Chemical and Material Engineering The University of Auckland
[6] Univer sity of Science and Technology Beijing
来源：
JournalofRareEarths | 2003年 / 01期
关键词：
metal meterials; series electro-pulse d ischarge; micro-crystalline coatings dispersed by rare earth oxide; high-temp erature oxidation; rare earths;
D O I：
暂无
中图分类号：
TQ153 [电镀工业];
学科分类号：
0817 ;
摘要：
A new technique-series electro-pulse discharg e (SEPD)-was developed as a kind of surface coating process. In this technique, both positive and negative poles of a pulse power were used as the depositing electrodes with the substrate allo y as an induction electrode. Micro-crystalline Co-Cr and Co-Cr dispersed wit h Y 2O 3 coatings were deposited on Fe-18Cr-8Ni stainless steel surface by using Co30Cr alloy as the depositing electrodes. Oxidation at 950 ℃ in ambie nt air shows that these coatings greatly improve the oxidation resistance of the steel. The addition of dispersed Y 2O 3 nano-particles into the alloy coati ngs was found to further reduce the scaling rate and enhance the adhesion of oxi de scales.
引用
收藏
页码：64 / 68
页数：5
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