A magnetron sputtered microcrystalline beta-NiAl coating for SC superalloys. Part II. Effects of a NiCrO diffusion barrier on oxidation behavior at 1100 degrees C
文献类型：期刊论文
| 作者 | Yao, Hongrui ; Bao, Zebin ; Shen, Mingli ; Zhu, Shenglong ; Wang, Fuhui |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2017-06-15 |
| 卷号 | 407页码:485-494 |
| 关键词 | beta-NiAl Oxidation Secondary reaction zone Diffusion barrier |
| ISSN号 | 0169-4332 |
| 通讯作者 | Zhu, SL (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China. |
| 中文摘要 | Arc ion plated-NiCrO interlayer was fabricated as an active diffusion barrier for microcrystalline beta-NiAl coating on Ni-base single crystal Rene N5 superalloy. The effects of the NiCrO barrier layer on the cyclic oxidation behavior at 1100 degrees C were investigated. The microstructure of coated specimens was characterized by SEM, XRD, XPS and TEM. The microcrystalline beta-NiAl coating without NiCrO barrier layer exhibited good oxidation resistance by forming exclusive alpha-A1203 scales during cyclic oxidation tests at 1100 degrees C in air. However, the formation of thick interdiffusion zone (IDZ) and secondary reaction zone (SRZ), which accelerated coating degradation, was observed. The NiCrO barrier layer was transformed into alpha-Al2O3/Metal/alpha-Al2O3 sandwich structure during vacuum annealing at 1000 degrees C. The sandwich structure was adherent to the coating and the substrate, prevented the formation of IDZ and SRZ, and retarded the coating degradation effectively during cyclic oxidation tests. The mechanism for the formation of SRZ in NiAI coated single crystal superalloy and the mechanism for the transformation of NiCrO interlayer into alpha-Al2O3/Metal/alpha-Al2O3 sandwich structure were discussed. (C) 2017 Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| 收录类别 | SCI |
| 资助信息 | National Key Basic Research Program of China (973 Program) [2012CB625100]; National Nature Science Foundation of China [51231001] |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78086]  |
| 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 | Yao, Hongrui,Bao, Zebin,Shen, Mingli,et al. A magnetron sputtered microcrystalline beta-NiAl coating for SC superalloys. Part II. Effects of a NiCrO diffusion barrier on oxidation behavior at 1100 degrees C[J]. APPLIED SURFACE SCIENCE,2017,407:485-494. |
| APA | Yao, Hongrui,Bao, Zebin,Shen, Mingli,Zhu, Shenglong,&Wang, Fuhui.(2017).A magnetron sputtered microcrystalline beta-NiAl coating for SC superalloys. Part II. Effects of a NiCrO diffusion barrier on oxidation behavior at 1100 degrees C.APPLIED SURFACE SCIENCE,407,485-494. |
| MLA | Yao, Hongrui,et al."A magnetron sputtered microcrystalline beta-NiAl coating for SC superalloys. Part II. Effects of a NiCrO diffusion barrier on oxidation behavior at 1100 degrees C".APPLIED SURFACE SCIENCE 407(2017):485-494. |
入库方式： OAI收割
来源：金属研究所
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