| NiCrAlY/NiAl/ZrO2-Y2O3 thermal barrier coatings obtained by detonation spraying |
| Wu, YN; Ke, PL; Sun, C; Hua, WG; Wang, FH; Wen, LS
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| 通讯作者 | Wu, YN(ynwu@imr.ac.cn)
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| 2004-05-11
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| 发表期刊 | ACTA METALLURGICA SINICA
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| ISSN | 0412-1961
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| 卷号 | 40期号:5页码:541-545 |
| 摘要 | In order to improve the oxidation resistance of thermal barrier coatings (TBCs), Ni25Cr-5AI-0.5Y/Ni-50Al/ZrO2-8Y(2)O(3) (mass fraction, %) system was deposited on the alloy M22 by detonation spray. Detonation sprayed Ni-50Al (NiAl) layer, as a diffusion barrier layer, is composed of delta-Ni2Al3, beta-NiAl and NiAl3- Isothermal oxidation tests were carried at 1050, 1100 and 1150 degreesC, in order to study the effect of NiAl layer on the growth mechanism of oxidation film. The results indicate that the mass gains of the triplex TBCs are obviously less than those of duplex TBCs at the above temperatures. The oxidation kinetics of triplex TBCs obeys the fourth power law at 1050 and 1100 degreesC, and the parabolic law at 1150 degreesC. NiAl layer can hinder the outward diffusion of elements in the bond coat and promote the formation of TGO consisted of Al2O3. |
| 关键词 | thermal barrier coating
oxidation resistance
detonation spray
NiAl diffusion barrier layer
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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:000221838900020
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| 出版者 | SCIENCE CHINA PRESS
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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/321006/80879
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| 专题 | 中国科学院金属研究所
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| 通讯作者 | Wu, YN |
| 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 |
Wu, YN,Ke, PL,Sun, C,et al. NiCrAlY/NiAl/ZrO2-Y2O3 thermal barrier coatings obtained by detonation spraying[J]. ACTA METALLURGICA SINICA,2004,40(5):541-545.
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| APA |
Wu, YN,Ke, PL,Sun, C,Hua, WG,Wang, FH,&Wen, LS.(2004).NiCrAlY/NiAl/ZrO2-Y2O3 thermal barrier coatings obtained by detonation spraying.ACTA METALLURGICA SINICA,40(5),541-545.
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| MLA |
Wu, YN,et al."NiCrAlY/NiAl/ZrO2-Y2O3 thermal barrier coatings obtained by detonation spraying".ACTA METALLURGICA SINICA 40.5(2004):541-545.
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