What is the suitable segmentation crack density for atmospheric plasma sprayed thick thermal barrier coatings with the improved thermal shock resistance?
文献类型：期刊论文
| 作者 | Wang, L.; Zhong, X. H.; Shao, F.; Ni, J. X.; Yang, J. S.; Tao, S. Y.; Wang, Y. |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 431页码:101 |
| 关键词 | Thick thermal barrier coatings Segmentation crack Residual stress Failure Finite element modeling |
| ISSN号 | 0169-4332 |
| DOI | 10.1016/j.apsusc.2017.05.030 |
| 英文摘要 | The optimization and control of the segmentation crack density (D-s) for the thick thermal barrier coatings (TTBCs) with the improved thermal shock resistance has been performed via finite element modeling. The simulation results based on the current property parameters of each layer of the TTBCs fabricated by atmospheric plasma spraying (APS) are well consistent with the experimental results of thermal shock test. The investigation results indicate that too large or too low D-s will be not beneficial to the improvement of the thermal shock resistance of the TTBCs. The D-s must be located at a suitable range, and this paper has revealed the objective law quantitatively. Based on our simulation and experimental results, the appropriate segmentation crack density is in the range of 2.38-4.76 cracks/mm which will be beneficial to improve the thermal shock resistance ability. It has been found that the as-sprayed TTBCs exhibited superior thermal shock resistance when the segmentation crack density is about 4 mm(-1). The stress intensity factor (K-I) and energy release rate (J integration) will increase with the increasing of segmentation crack length. The existence of segmentation crack will improve the strain tolerance of TTBCs. The strain tolerance has been characterized by D-s and segmentation crack length quantitatively. The failure mechanism of APS-TTBCs can be attributed to the propagation of segmentation crack at the top-coat of the TTBCs, formation and propagation of the horizontal crack at the top-coat/TGO (thermally grown oxide) interface. The propagation rate of the main segmentation crack has been calculated and the life prediction model of the TTBCs during thermal cycle has been established. The possible methods which can prolong the service life of the TTBCs have also been proposed. (C) 2017 Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| WOS记录号 | WOS:000416964200016 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | This work was jointly supported by the National natural Science Foundation (NSFC) under the grant No. 51671208, Natural Science Foundation of Shanghai (No. 16ZR1440700), Laboratory foundation of Chinese Academy of Sciences (Grant No. CXJJ-165084) and the National Defense Basic Scientific Research (Grant No. B0920132004). And we also give our thanks to the special Project for Army-Civilian Combination of Shanghai Municipal Commission of Economy and Informatization (Grant No. JMJH2014053). The current work was also supported by the Key Research Program of Chinese Academy of Sciences (No. KGZD-EW-T06) and the research grant (No. 14DZ2261203) from Shanghai government. Dr. Minglong Zhai are specially appreciated for his support on the experimental validation.This work was jointly supported by the National natural Science Foundation (NSFC) under the grant No. 51671208, Natural Science Foundation of Shanghai (No. 16ZR1440700), Laboratory foundation of Chinese Academy of Sciences (Grant No. CXJJ-165084) and the National Defense Basic Scientific Research (Grant No. B0920132004). And we also give our thanks to the special Project for Army-Civilian Combination of Shanghai Municipal Commission of Economy and Informatization (Grant No. JMJH2014053). The current work was also supported by the Key Research Program of Chinese Academy of Sciences (No. KGZD-EW-T06) and the research grant (No. 14DZ2261203) from Shanghai government. Dr. Minglong Zhai are specially appreciated for his support on the experimental validation. ; This work was jointly supported by the National natural Science Foundation (NSFC) under the grant No. 51671208, Natural Science Foundation of Shanghai (No. 16ZR1440700), Laboratory foundation of Chinese Academy of Sciences (Grant No. CXJJ-165084) and the National Defense Basic Scientific Research (Grant No. B0920132004). And we also give our thanks to the special Project for Army-Civilian Combination of Shanghai Municipal Commission of Economy and Informatization (Grant No. JMJH2014053). The current work was also supported by the Key Research Program of Chinese Academy of Sciences (No. KGZD-EW-T06) and the research grant (No. 14DZ2261203) from Shanghai government. Dr. Minglong Zhai are specially appreciated for his support on the experimental validation.This work was jointly supported by the National natural Science Foundation (NSFC) under the grant No. 51671208, Natural Science Foundation of Shanghai (No. 16ZR1440700), Laboratory foundation of Chinese Academy of Sciences (Grant No. CXJJ-165084) and the National Defense Basic Scientific Research (Grant No. B0920132004). And we also give our thanks to the special Project for Army-Civilian Combination of Shanghai Municipal Commission of Economy and Informatization (Grant No. JMJH2014053). The current work was also supported by the Key Research Program of Chinese Academy of Sciences (No. KGZD-EW-T06) and the research grant (No. 14DZ2261203) from Shanghai government. Dr. Minglong Zhai are specially appreciated for his support on the experimental validation. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24486]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.[Wang, L. 2.Zhong, X. H. 3.Shao, F. 4.Ni, J. X. 5.Yang, J. S. 6.Tao, S. Y.] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Coating Mat CAS, Shanghai 201899, Peoples R China 7.[Yang, J. S.] Univ Chinese Acad Sci, Beijing 100039, Peoples R China 8.[Wang, Y.] Harbin Inst Technol, Sch Mat Sci & Engn, Lab Nano Surface Engn, Harbin 150001, Heilongjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, L.,Zhong, X. H.,Shao, F.,et al. What is the suitable segmentation crack density for atmospheric plasma sprayed thick thermal barrier coatings with the improved thermal shock resistance?[J]. APPLIED SURFACE SCIENCE,2018,431:101, 111. |
| APA | Wang, L..,Zhong, X. H..,Shao, F..,Ni, J. X..,Yang, J. S..,...&Wang, Y..(2018).What is the suitable segmentation crack density for atmospheric plasma sprayed thick thermal barrier coatings with the improved thermal shock resistance?.APPLIED SURFACE SCIENCE,431,101. |
| MLA | Wang, L.,et al."What is the suitable segmentation crack density for atmospheric plasma sprayed thick thermal barrier coatings with the improved thermal shock resistance?".APPLIED SURFACE SCIENCE 431(2018):101. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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