Knowledge Management System of Institue of Mechanics, CAS
| On The Thermally Induced Interfacial Delamination Of A Segmented Coating | |
Chen XJ(陈学军) ; Chen GN(陈光南); Zhang K(张坤); Luo GX(罗耕星); Xiao JH(肖京华); Chen, XJ (reprint author), Univ Sci & Technol Beijing, Sch Appl Sci, 30 Xueyuan Rd, Beijing 100083, Peoples R China.
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| Source Publication | Surface & Coatings Technology
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| 2008 | |
| Pages | 2878-2884 |
| ISSN | 0257-8972 |
| Abstract | The thermally induced interfacial delamination problem of a segmented coating is investigated using finite element method (FEM). The coating-substrate system, modeled as a coated semi-infinite medium with periodic segmentation cracks within coating, is assumed to be exposed to convective cooling from surface. The failure criterion based on the interfacial fracture toughness is adopted, in which the energy release rate for an interface crack is considered to be the driving force for interfacial delamination extension. The results confirm that a segmented coating has higher delamination resistance than an intact one under the same thermal transients, as the segmentation crack spacing is smaller than a critical value. Based on dimensional analysis, sensitivity analyses of the crack driving force are also obtained as a function of various dimensionless parameters such as time, convection severity and material constants. These results may provide some helpful references for the integrity of coating-substrate systems under thermal loading. (C) 2007 Elsevier B.V. All rights reserved. |
| Keyword | Interfacial Delamination Thermal Loading Segmentation Crack Dimensional Analysis Finite Element Method Barrier Coatings Cracks Fracture System Films |
| DOI | 10.1016/j.surfcoat.2007.10.031 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000254763600009 |
| WOS Keyword | BARRIER COATINGS ; CRACKS ; FRACTURE ; SYSTEM ; FILMS |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/26080 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Chen, XJ (reprint author), Univ Sci & Technol Beijing, Sch Appl Sci, 30 Xueyuan Rd, Beijing 100083, Peoples R China. |
| Recommended Citation GB/T 7714 | Chen XJ,Chen GN,Zhang K,et al. On The Thermally Induced Interfacial Delamination Of A Segmented Coating[J]. Surface & Coatings Technology,2008:2878-2884. |
| APA | 陈学军,陈光南,张坤,罗耕星,肖京华,&Chen, XJ .(2008).On The Thermally Induced Interfacial Delamination Of A Segmented Coating.Surface & Coatings Technology,2878-2884. |
| MLA | 陈学军,et al."On The Thermally Induced Interfacial Delamination Of A Segmented Coating".Surface & Coatings Technology (2008):2878-2884. |
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