| Micro-Crystalline Coatings of Co-Cr Dispersed with Y2O3 Deposited by Series Electro-Pulse Discharge |
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| 引用本文： | 徐强,何业东,齐慧滨,王德仁,李正伟,高唯. Micro-Crystalline Coatings of Co-Cr Dispersed with Y2O3 Deposited by Series Electro-Pulse Discharge[J]. 中国稀土学报(英文版), 2003, 21(1): 64-68 |
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| 作者姓名： | 徐强 何业东 齐慧滨 王德仁 李正伟 高唯 |
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| 作者单位： | [1]BeijingKeyLaboratoryofCorrosion,ErosionandSu~aceTechnology,UniversityofScienceandTechnologyBeijing,Beijing100083,China [2]DepartmentofChemicalandMaterialEngineering,TheUniversityofAuckland,NewZealand |
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| 基金项目： | projectsupportedbytheNationalNaturalScienceFoundationofChina ( 5 980 10 0 2 |
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| 摘 要： | A new technique-series electro-pulse discharge (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 alloy as an induction electrode. Micro-crystalline Co-Cr and Co-Cr dispersed with Y2O3 coatings were deposited on Fe-18Cr-SNi stainless steel surface by using Co30Cr alloy as the depositing electrodes. Oxidation at 950℃ in ambient air shows that these coatings greatly improve the oxidation resistance of the steel. The addition of dispersed Y2O3 nano-particles into the alloy coatings was found to further reduce the scaling rate and enhance the adhesion of oxide scales.
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| 关 键 词： | 微结晶涂层 钴-铬分散 氧化钇沉淀 电脉冲放电 稀土 高温氧化 |
Micro-Crystalline Coatings of Co-Cr Dispersed with Y2O3 Deposited by Series Electro-Pulse Discharge |
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| Xu Qiang ,He Yedong ,Qi Huibin,Wang Deren,Li Zhengwei,Gao Wei. Micro-Crystalline Coatings of Co-Cr Dispersed with Y2O3 Deposited by Series Electro-Pulse Discharge[J]. Journal of Rare Earths, 2003, 21(1): 64-68 |
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| Authors: | Xu Qiang He Yedong Qi Huibin Wang Deren Li Zhengwei Gao Wei |
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| Affiliation: | Xu Qiang 1,He Yedong 1*,Qi Huibin1,Wang Deren1,Li Zhengwei2,Gao Wei2 |
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| Abstract: | A new technique-series electro-pulse discharge (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 alloy as an induction electrode. Micro-crystalline Co-Cr and Co-Cr dispersed with Y2O3 coatings were deposited on Fe-18Cr-8Ni stainless steel surface by using Co30Cr alloy as the depositing electrodes. Oxidation at 950 ℃ in ambient air shows that these coatings greatly improve the oxidation resistance of the steel. The addition of dispersed Y2O3 nano-particles into the alloy coatings was found to further reduce the scaling rate and enhance the adhesion of oxide scales. |
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| Keywords: | metal meterials series electro-pulse d ischarge micro-crystalline coatings dispersed by rare earth oxide high-temp erature oxidation rare earths |
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