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Preparation of a Duplex Nanocrystalline Coating by Magnetron Sputtering and Its Oxidation Performance
Zhou, Meiqi; Wang, Jiantao; Chen, Minghui; Yang, Lanlan; Wu, Changjun; Zheng, Chengyue; Xie, Dongbai; Zhu, Shenglong; Wang, Fuhui
2019-01-01
Source PublicationJOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
ISSN1533-4880
Volume19Issue:1Pages:181-187
AbstractA duplex nanocrystalline coating was prepared in this study by magnetron sputtering on N5 single-crystal super alloy (Ni: Bal, Co: 7.5, Cr: 7.0, Al: 6.2, Ta: 6.5, Re: 3.0, Mo: 1.5 and W: 5.0, wt%). The novel nanocrystalline coating consists of two layers, the inner layer having the same composition with the alloy substrate for avoiding elements inter diffusion while the outer layer has 7.6 wt% higher Al to quickly ensure the formation of a protective Al2O3 layer. Both two layers were deposited within one magnetron sputtering apparatus that contained two targets. The main target was having the same alloy substrate in composition and secondary target with pure Al. The difference in Al content between the two layers was achieved by controlling the secondary target during sputtering. This study revealed a way for preparing a series of similar coatings with varying compositions and improving performance. After oxidation at 1050 degrees C, a protective Al2O3 layer was quickly formed on the duplex nanocrystalline coating and no TCP phases were detected in the alloy substrate.
KeywordHigh-Temperature Oxidation Single-Crystal Superalloys Nanocrystalline Coating Interdiffusion
Indexed BySCI
Language英语
WOS IDWOS:000447641700024
PublisherAMER SCIENTIFIC PUBLISHERS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81530
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhou, Meiqi,Wang, Jiantao,Chen, Minghui,et al. Preparation of a Duplex Nanocrystalline Coating by Magnetron Sputtering and Its Oxidation Performance[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2019,19(1):181-187.
APA Zhou, Meiqi.,Wang, Jiantao.,Chen, Minghui.,Yang, Lanlan.,Wu, Changjun.,...&Wang, Fuhui.(2019).Preparation of a Duplex Nanocrystalline Coating by Magnetron Sputtering and Its Oxidation Performance.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,19(1),181-187.
MLA Zhou, Meiqi,et al."Preparation of a Duplex Nanocrystalline Coating by Magnetron Sputtering and Its Oxidation Performance".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 19.1(2019):181-187.
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