Preparation and oxidation behavior of NiCrAlYSi coating on a cobalt-base superalloy K40S
文献类型：期刊论文
| 作者 | K. Zhang ; Q. M. Wang ; C. Sun ; F. H. Wang |
| 刊名 | Corrosion Science
 |
| 出版日期 | 2008 |
| 卷号 | 50期号:6页码:1707-1715 |
| 关键词 | cobalt-base superalloy K40S NiCrAlYSi coating arc ion plating high temperature oxidation inter-diffusion aluminide coatings cyclic oxidation alloys |
| ISSN号 | 0010-938X |
| 中文摘要 | Arc ion plating had been employed on a cobalt-base superalloy K40S to deposit a NiCrAlYSi coating to improve its oxidation resistance at 1323-1423 K in air. The K40S superalloy had poor oxidation resistance because a non-protective and easy spalling surface oxides scale mixed of Cr2O3 and CoCr2O4 was formed on its surface. After coated with NiCrAlYSi coating, a dense and protective alpha-Al2O3 scale was formed on the coating and excellently improved its oxidation resistance. Inter-diffusion obviously occurred between the coating and the substrate K40S superalloy in oxidation process, which resulted from Co atoms in K40S outwards diffused. A richen Cr and W carbides inter-diffusion layer was formed, which could acted as a diffusion barrier that barred Al atoms in coating inwards diffusion. Though the NiCrAlYSi changed into NiCoCrAlYSi during oxidation process, it still possessed a good oxidation resistance and. had a considerable long-term life. (C) 2008 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33323]  |
| 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 | K. Zhang,Q. M. Wang,C. Sun,et al. Preparation and oxidation behavior of NiCrAlYSi coating on a cobalt-base superalloy K40S[J]. Corrosion Science,2008,50(6):1707-1715. |
| APA | K. Zhang,Q. M. Wang,C. Sun,&F. H. Wang.(2008).Preparation and oxidation behavior of NiCrAlYSi coating on a cobalt-base superalloy K40S.Corrosion Science,50(6),1707-1715. |
| MLA | K. Zhang,et al."Preparation and oxidation behavior of NiCrAlYSi coating on a cobalt-base superalloy K40S".Corrosion Science 50.6(2008):1707-1715. |
入库方式： OAI收割
来源：金属研究所
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