Oxidation of a novel chromium coating with CeO2 dispersions
文献类型：期刊论文
| 作者 | L. Zhu ; X. Peng ; J. Yan ; F. Wang |
| 刊名 | Oxidation of Metals
 |
| 出版日期 | 2004 |
| 卷号 | 62期号:5-6页码:411-426 |
| 关键词 | electrodepostion chromizing CeO2-dispersed chromizing coating mild-carbon steel high-temperature oxidation reactive-element effect high-temperature oxidation ion-implanted yttrium reactive-element selective oxidation stainless-steels nickel segregation growth scales cr2o3 |
| ISSN号 | 0030-770X |
| 中文摘要 | 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. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35779]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | L. Zhu,X. Peng,J. Yan,et al. Oxidation of a novel chromium coating with CeO2 dispersions[J]. Oxidation of Metals,2004,62(5-6):411-426. |
| APA | L. Zhu,X. Peng,J. Yan,&F. Wang.(2004).Oxidation of a novel chromium coating with CeO2 dispersions.Oxidation of Metals,62(5-6),411-426. |
| MLA | L. Zhu,et al."Oxidation of a novel chromium coating with CeO2 dispersions".Oxidation of Metals 62.5-6(2004):411-426. |
入库方式： OAI收割
来源：金属研究所
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