Microstructure and initial stage oxidation of NiCoCrAlY coatings deposited by arc ion plating technique

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	Microstructure and initial stage oxidation of NiCoCrAlY coatings deposited by arc ion plating technique
	Sun, C ; Wang, QM ; Tang, YJ ; Guan, QF ; Gong, J ; Wen, LS
通讯作者	Sun, C(csun@imr.ac.cn)
	2005-11-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	41 期号:11 页码:1167-1173
摘要	The microstructure of the NiCoCrAlY coatings deposited by arc ion plating (AIP) and its oxidation mechanism at initial stage were investigated by XRD, SEM, TEM and photostimulated luminescence spectroscopy (PSLS). The results showed that as-deposited NiCoCrAlY coatings were composed of nano-grains and possessed apparent layered structure. After vacuum annealing, the layered microstructure disappeared and the coating became much denser. The nano-grains in the coatings became much larger and twinned grains appeared. In addition, a very thin oxide scale mainly of alpha-Al2O3 formed on the coating surface after annealing. In the subsequent initial oxidation stages, transient theta-Al2O3 increased and then turned into stable alpha-Al2O3. The related mechanism was also discussed.
关键词	NiCoCrAlY coating arc ion plating microstructure oxidation mechanism
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000233702000009
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/82541
通讯作者	Sun, C
作者单位	1.Chinese Acad Sci, Inst Met Res, Div Surface Engn Mat, Shenyang 110016, Peoples R China 2.Jilin Univ, Sch Mat, Changchun 130025, Peoples R China
推荐引用方式 GB/T 7714	Sun, C,Wang, QM,Tang, YJ,et al. Microstructure and initial stage oxidation of NiCoCrAlY coatings deposited by arc ion plating technique[J]. ACTA METALLURGICA SINICA,2005,41(11):1167-1173.
APA	Sun, C,Wang, QM,Tang, YJ,Guan, QF,Gong, J,&Wen, LS.(2005).Microstructure and initial stage oxidation of NiCoCrAlY coatings deposited by arc ion plating technique.ACTA METALLURGICA SINICA,41(11),1167-1173.
MLA	Sun, C,et al."Microstructure and initial stage oxidation of NiCoCrAlY coatings deposited by arc ion plating technique".ACTA METALLURGICA SINICA 41.11(2005):1167-1173.