ONE-STEP DEPOSITION AND INTERFACIAL ADHESIVE STRENGTH OF THE MULTILAYER SYSTEM WITH A DIFFUSION BARRIER

doi:10.3724/SP.J.1037.2009.00472

IMR OpenIR

	ONE-STEP DEPOSITION AND INTERFACIAL ADHESIVE STRENGTH OF THE MULTILAYER SYSTEM WITH A DIFFUSION BARRIER
	Li Weizhou 1,2; Wang Qimin 1; Gong Jun 1; Sun Chao 1; Jiang Xin 3
通讯作者	Sun Chao(csun@imr.ac.cn)
	2010-05-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	46 期号:5 页码:561-568
摘要	M-Cr-Al-Y (M=Ni and/or Co) coatings with the good comprehensive property among anti-oxidation, anti-corrosion and mechanical properties have been widely used for the protection for the gas turbine components. However, after a long-term thermal exposure to high temperature atmosphere in service, the coatings are rapidly degraded. The main cause is ascribed to the intensive element interdiffusion between the coating and the substrate. To suppress the interdiffusion, addition of a diffusion barrier (DB) is required at the interface of the overlayer and the substrate. However, M-Cr-Al-Y coating system with a ceramic diffusion barrier prepared by a conventional two-step arc ion plating (AIP) on the superalloy substrate would reduce the interfacial adhesive strength. In this paper, the multilayer system of Ni-Cr-Al-Y-Si overlayer with a DB and a bond coat (BC) was deposited on the DSM11 substrate by one-step AIP. The anti-oxidation property, the anti-diffusion ability of the barrier and the interfacial adhesive strength of the multilayer system were investigated. The results indicate that the multilayer can provide more effective protection for the DSM11 substrate than the single coating at high temperature. After 100 h thermal exposure at 1050 degrees C. the surface Al(2)O(3) scales are continuous, dense, and only very little amounts of alloy elements diffused from the substrate is detected in the overlayer. After 100 cyc cycles between 1050 degrees C and room temperature (RT), the barrier layer has still well adhesive to the overlayer and the substrate. The tensile adhesion test shows that the interfacial adhesive strength is 63.6 MPa for the annealed multilayer system, which is about 20 MPa higher than that of the coating system with a DB on the DSM11 substrate deposited by the two-step AIP. The one-step AIP method can increase the interfacial adhesive strength and improve the anti-oxidation performance of the multilayer with DB.
关键词	diffusion barrier (DB) coating anti-oxidation interfacial adhesive strength one-step deposition
资助者	National Natural Science Foundation of China ; Guangxi Science Foundation
DOI	10.3724/SP.J.1037.2009.00472
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[50571101] ; Guangxi Science Foundation[0731013]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000278475200007
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/99916
专题	中国科学院金属研究所
通讯作者	Sun Chao
作者单位	1.Chinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China 2.Guangxi Univ, Key Lab New Proc Technol Nonferrous Met & Mat, Minist Educ, Nanning 530004, Peoples R China 3.Univ Siegen, Inst Mat Engn, D-57076 Siegen, Germany
推荐引用方式 GB/T 7714	Li Weizhou,Wang Qimin,Gong Jun,et al. ONE-STEP DEPOSITION AND INTERFACIAL ADHESIVE STRENGTH OF THE MULTILAYER SYSTEM WITH A DIFFUSION BARRIER[J]. ACTA METALLURGICA SINICA,2010,46(5):561-568.
APA	Li Weizhou,Wang Qimin,Gong Jun,Sun Chao,&Jiang Xin.(2010).ONE-STEP DEPOSITION AND INTERFACIAL ADHESIVE STRENGTH OF THE MULTILAYER SYSTEM WITH A DIFFUSION BARRIER.ACTA METALLURGICA SINICA,46(5),561-568.
MLA	Li Weizhou,et al."ONE-STEP DEPOSITION AND INTERFACIAL ADHESIVE STRENGTH OF THE MULTILAYER SYSTEM WITH A DIFFUSION BARRIER".ACTA METALLURGICA SINICA 46.5(2010):561-568.