Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system

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	Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system
	W. Z. Li; D. Q. Yi; Y. Q. Li; H. Q. Liu; C. Sun
	2012
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	518 页码:86-95
摘要	The duplex coating system of a NiCrAlY overlayer with a CrON diffusion barrier with different phase contents was deposited by AIP method. The duplex coatings were characterized regarding their microstructure, and the ability of the diffusion barrier was evaluated. The oxidation resistance and the interfacial strength of the duplex coatings were investigated. The results indicated that the duplex coating system with a diffusion barrier with an O/N ratio similar to 66 and a lower Cr2O3 phase content exhibited more excellent oxidation resistance and lesser interdiffusion than with a diffusion barrier with O/N similar to 30.1. The exposed coating samples possessed an improved interfacial strength compared with the annealed samples in the two duplex coating systems. The stronger interfacial strength in the coating system with a diffusion barrier with a low Cr2O3 phase content was related to the fewer defects and lower residual stress in the diffusion barrier. (C) 2012 Elsevier B. V. All rights reserved.
部门归属	[li, w. z.; yi, d. q.; liu, h. q.] cent s univ, sch mat sci & engn, changsha 410083, hunan, peoples r china. [li, w. z.; li, y. q.] guangxi univ, sch mat sci & engn, nanning 530004, peoples r china. [li, w. z.; sun, c.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [li, w. z.] univ coimbra, dept mech engn, seg, cemuc, p-3030788 coimbra, portugal.;li, wz (reprint author), cent s univ, sch mat sci & engn, changsha 410083, hunan, peoples r china.;wz-li@hotmail.com
关键词	Duplex Coatings Diffusion Barrier Oxidation Resistance Interfacial Strength Interdiffusion Cyclic Oxidation Superalloy Behavior
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60075
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Z. Li,D. Q. Yi,Y. Q. Li,et al. Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system[J]. Journal of Alloys and Compounds,2012,518:86-95.
APA	W. Z. Li,D. Q. Yi,Y. Q. Li,H. Q. Liu,&C. Sun.(2012).Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system.Journal of Alloys and Compounds,518,86-95.
MLA	W. Z. Li,et al."Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system".Journal of Alloys and Compounds 518(2012):86-95.