In Situ Measurement of the Toughness of the Interface Between a Thermal Barrier Coating and a Ni Alloy

doi:10.1111/j.1551-2916.2011.04588.x

IMECH-IR > 非线性力学国家重点实验室

	In Situ Measurement of the Toughness of the Interface Between a Thermal Barrier Coating and a Ni Alloy
	Eberl C; Wang X; Gianola DS; Nguyen TD; He MY; Evans AG; Hemker KJ; Eberl, C (reprint author), Johns Hopkins Univ, Dept Mech Engn, Baltimore, MD 21218 USA
发表期刊	Journal of The American Ceramic Society
	2011
卷号	94 页码:S120-S127
ISSN	0002-7820
摘要	A flexural test for the in situ measurement of the delamination toughness of the interface between a thermally grown oxide and a bond coat in the presence of a thermal barrier coating (TBC) has been implemented. To accomplish the testing, a section of the substrate was removed by microelectro-discharge machining and a precrack introduced through the TBC by center point loading. This was followed by application of an asymmetric single-point load to extend a delamination along the interface. A displacement and strain mapping method was used to locate the delamination and to ascertain its extension. To relate the energy release rate and mode mixity to the crack extension and the loads, a finite-element method was implemented. The ensuing fracture resistance was found to vary along the interface with values in the range of 25-95 J/m(2).
关键词	Bimaterial Interfaces Mechanical-properties Systems Delamination Adhesion Behavior Cracks
学科领域	Materials Science
DOI	10.1111/j.1551-2916.2011.04588.x
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000292209200013
关键词[WOS]	BIMATERIAL INTERFACES ; MECHANICAL-PROPERTIES ; SYSTEMS ; DELAMINATION ; ADHESION ; BEHAVIOR ; CRACKS
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
项目资助者	This work was supported by AFOSR under the MEANS-2 Program (Grant No. FA9550-05-1-0173) and by ONR (Grant No. N00014-08-1-0454).The authors would like to thank J. Hutchinson for creative and enlightening discussions that allowed this technique to come to fruition. We also thank M. Maloney and D. Litton of Pratt and Whitney (USA) for providing the specimens, S. Faulhaber for preparing the disk specimens, J. Mraz (Smaltec) for fabricating the microbeam specimens, and W. Sharpe, Jr. and J. Sharon for technical support. C. E. would like to acknowledge financial support from the German Science Foundation (SFB499/3-2007 N01).
课题组名称	非线性力学国家重点实验室
论文分区	一类
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/44926
专题	非线性力学国家重点实验室
通讯作者	Eberl, C (reprint author), Johns Hopkins Univ, Dept Mech Engn, Baltimore, MD 21218 USA
推荐引用方式 GB/T 7714	Eberl C,Wang X,Gianola DS,et al. In Situ Measurement of the Toughness of the Interface Between a Thermal Barrier Coating and a Ni Alloy[J]. Journal of The American Ceramic Society,2011,94:S120-S127.
APA	Eberl C.,Wang X.,Gianola DS.,Nguyen TD.,He MY.,...&Eberl, C .(2011).In Situ Measurement of the Toughness of the Interface Between a Thermal Barrier Coating and a Ni Alloy.Journal of The American Ceramic Society,94,S120-S127.
MLA	Eberl C,et al."In Situ Measurement of the Toughness of the Interface Between a Thermal Barrier Coating and a Ni Alloy".Journal of The American Ceramic Society 94(2011):S120-S127.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
SCI-J2011051.pdf（2316KB）			开放获取	--	浏览请求全文