| Oxidation of a novel chromium coating with CeO2 dispersions |
| Zhu, L; Peng, X; Yan, J; Wang, F
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| 通讯作者 | Peng, X(xpeng@imr.ac.cn)
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| 2004-12-01
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| 发表期刊 | OXIDATION OF METALS
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| ISSN | 0030-770X
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| 卷号 | 62期号:5-6页码:411-426 |
| 摘要 | Chromium coatings have been in widespread use to enhance the high-temperature oxidation resistance of low-alloy steely since the 1950s [Samuel and Lockington, Metal Treatment and Drop forgeing 18, 354 (1951); Sully and Brandes, Chromium, 2nd edn. Butterworths, London 1967]. In this work, a novel CeO2-dispersed chromium coating with a fine-grain structure was manufactured on a mild-carbon steel by Prior composite electrodeposition of Ni with CeO2 particles, followed by chromizing using a conventional halide activate, pack-cementation method. For comparison, chromizing was also performed on the carbon steel and on the one with Ni-plating pretreatment. Cyclic oxidation at 840degreesC for 120 h showed that among the three various samples chromized, the CeO2-dispersed chromium coating exhibited the best oxidation resistance, while the worst for the coating on the carbon steel The samples after oxidation were investigated using X-ray diffraction (XRD), scanning-electron microscopy equipped with energy dispersive X-ray analysis (SEMI/EDAX) and electron-probe microanalysis (EPMA). The results indicated that although all three coatings grew chromia scales during oxidation, the one formed on the CeO2-modified coating Was thinner, denser and had a fine-grain structured Moreover, the formation of "Kirkendall" voids and new precipitates, which occurred during oxidation below the scale in the chromium coating on the Ni-plated sample, was prevented in the presence of CeO2 particles in the coating The CeO2 effects on the coating formation and the coating oxidation behavior are discussed in detail. |
| 关键词 | electrodepostion
chromizing
CeO2-dispersed chromizing coating
mild-carbon steel
high-temperature oxidation
reactive-element effect
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| 收录类别 | SCI
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| 语种 | 英语
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| WOS研究方向 | Metallurgy & Metallurgical Engineering
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| WOS类目 | Metallurgy & Metallurgical Engineering
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| WOS记录号 | WOS:000226001700007
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| 出版者 | KLUWER ACADEMIC/PLENUM PUBL
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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/321006/81978
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| 通讯作者 | Peng, X |
| 作者单位 | Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
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推荐引用方式
GB/T 7714 |
Zhu, L,Peng, X,Yan, J,et al. Oxidation of a novel chromium coating with CeO2 dispersions[J]. OXIDATION OF METALS,2004,62(5-6):411-426.
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| APA |
Zhu, L,Peng, X,Yan, J,&Wang, F.(2004).Oxidation of a novel chromium coating with CeO2 dispersions.OXIDATION OF METALS,62(5-6),411-426.
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| MLA |
Zhu, L,et al."Oxidation of a novel chromium coating with CeO2 dispersions".OXIDATION OF METALS 62.5-6(2004):411-426.
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