| Oxidation of a novel CeO2-dispersion-strengthened chromium coating in simulated coal-combustion gases |
| J. Yan; X. Peng; F. Wang
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| 2006
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| 发表期刊 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
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| ISSN | 0921-5093
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| 卷号 | 426期号:1-2页码:266-273 |
| 摘要 | A novel CeO2-dispersion-strengthened chromium coating was developed by chromizing a Ni-CeO2 composite film, which was prior deposited on a mild steel by co-electrodeposition of Ni with CeO2 particles from a nickel sulfate bath. For comparison two CeO2-free chromium coatings were also prepared by chromizing on the mild steel with and without prior Ni-plating. The oxidation performances of these coatings were investigated at -850 degrees C in simulated coal-combustion gases, which were N-2 + 5 vol.% O-2 base gas and the gas containing 1000 vppm SO2 or/and 20 vol.% H2O. There were several observations: (1) the mass gain of all chromium coatings was mainly from the contribution of oxidation induced by oxygen in these gases, (2) SO2 accelerated the oxidation of the CeO2-free chromium coatings, but did not have a significant effect on the oxidation of the CeO2-dispersed chromium coating, and (3) water vapor greatly increased the oxidation of the CeO2-free chromium coatings by causing the evaporation of Cr from the growing chromia scale, however, its effect on the oxidation of the CeO2-dispersed chromium coating was not significant. (c) 2006 Elsevier B.V. All rights reserved. |
| 部门归属 | chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china.;peng, x (reprint author), chinese acad sci, met res inst, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china;xpeng@imr.ac.cn
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| 关键词 | Ceo2-dispersion-strengthened Chromium Coating
So2
H2o
High
Temperature Oxidation
Reactive Element Effect
High-temperature Corrosion
Incineration Environment
Oxide Scales
Carbon-steel
Growth
Dispersions
Segregation
Atmospheres
Evaporation
Mechanisms
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| URL | 查看原文
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| WOS记录号 | WOS:000241152000036
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/34634
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
J. Yan,X. Peng,F. Wang. Oxidation of a novel CeO2-dispersion-strengthened chromium coating in simulated coal-combustion gases[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2006,426(1-2):266-273.
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| APA |
J. Yan,X. Peng,&F. Wang.(2006).Oxidation of a novel CeO2-dispersion-strengthened chromium coating in simulated coal-combustion gases.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,426(1-2),266-273.
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| MLA |
J. Yan,et al."Oxidation of a novel CeO2-dispersion-strengthened chromium coating in simulated coal-combustion gases".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 426.1-2(2006):266-273.
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