Application of laser cladding technology to improve the interface of thermal barrier coatings

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	Application of laser cladding technology to improve the interface of thermal barrier coatings
	Ma Y(马岳); Duan ZP(段祝平); Yang ZX(杨治星); Wu CK(吴承康)
刊名	Surface and Interface Analysis
	2000
卷号	29 期号:5 页码:310-313
ISSN号	0142-2421
通讯作者	Yue, M (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
中文摘要	The present study is focused on improvement of the adhesion properties of the interface between plasma-sprayed coatings and substrates by laser cladding technology (LCT), Within the laser-clad layer there is a gradient distribution in chemical composition and mechanical properties that has been confirmed by SEM observation and microhardness measurement. The residual stress due to mismatches in thermal and mechanical properties between coatings and substrates can be markedly reduced and smoothed out. To examine the changes of microstructure and crack propagation in the coating and interface during loading, the three-point bending test has been carried out in SEM with a loading device. Analysis of the distribution of shear stress near the interface under loading has been made using the FEM code ANSYS, The experimental results show clearly that the interface adhesion can be improved with LCT pretreatment, and the capability of the interface to withstand the shear stress as well as to resist microcracking has been enhanced.
学科主题	力学
类目[WOS]	Chemistry, Physical
研究领域[WOS]	Chemistry
关键词[WOS]	PLASMA ; POWDERS
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000087201600002
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/16186]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Ma Y,Duan ZP,Yang ZX,et al. Application of laser cladding technology to improve the interface of thermal barrier coatings[J]. Surface and Interface Analysis,2000,29(5):310-313.
APA	马岳,段祝平,杨治星,&吴承康.(2000).Application of laser cladding technology to improve the interface of thermal barrier coatings.Surface and Interface Analysis,29(5),310-313.
MLA	马岳,et al."Application of laser cladding technology to improve the interface of thermal barrier coatings".Surface and Interface Analysis 29.5(2000):310-313.