| NiCrAlY/NiAl/ZrO2-Y2O3 thermal barrier coatings obtained by detonation spraying | |
| Wu, YN; Ke, PL; Sun, C; Hua, WG; Wang, FH; Wen, LS | |
| Corresponding Author | Wu, YN(ynwu@imr.ac.cn) |
| 2004-05-11 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 40Issue:5Pages:541-545 |
| Abstract | 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. |
| Keyword | thermal barrier coating oxidation resistance detonation spray NiAl diffusion barrier layer |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000221838900020 |
| Publisher | SCIENCE CHINA PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/81377 |
| Corresponding Author | Wu, YN |
| Affiliation | Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China |
| Recommended Citation 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. |
| 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. |
| 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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