Effect of substrate characteristics on interdiffusion coefficients of Ni and Al atoms in beta-NiAl phase of aluminide coatings

IMR OpenIR

	Effect of substrate characteristics on interdiffusion coefficients of Ni and Al atoms in beta-NiAl phase of aluminide coatings
	Wei, H; Sun, XF; Zheng, Q; Hou, GC; Guan, HR; Hu, ZQ
通讯作者	Wei, H(hwei@imr.ac.cn)
	2004-03-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	20 期号:2 页码:196-198
摘要	Interdiffusion coefficients at 950degreesC and 1050degreesC are calculated by Wagner analysis method as a function of composition of beta-NiAl phase. The beta-NiAl phase is formed by pack cementation on surface of superalloy. Results of the calculation show that interdiffusion coefficients in beta-NiAl phase strongly depend on the compositions and vary over several orders of magnitude. Compared with the interdiffusion coefficients in the stoichiometric beta-NiAl phase, the interdiffusion coefficients in beta-NiAl phase formed on superalloy is obviously small, probably due to the composition, complicated microstructure and precipitates. However, it could be seen clearly that the shapes of the diffusivity curves are very similar to each other. The similarity of the diffusion curves and the difference between interdiffusion coefficients imply that the compositions, microstructures and precipitates of superalloy have a distinctly adverse effect on the interdiffusion of Ni and Al atoms during aluminization, but do not change the essential characteristics of beta-NiAl phase.
关键词	aluminide coating pack cementation beta-NiAl phase aluminization interdiffusion coefficient
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000220705300019
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：8[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/321006/81518
专题	中国科学院金属研究所
通讯作者	Wei, H
作者单位	Chinese Acad Sci, Met Res Inst, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Wei, H,Sun, XF,Zheng, Q,et al. Effect of substrate characteristics on interdiffusion coefficients of Ni and Al atoms in beta-NiAl phase of aluminide coatings[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2004,20(2):196-198.
APA	Wei, H,Sun, XF,Zheng, Q,Hou, GC,Guan, HR,&Hu, ZQ.(2004).Effect of substrate characteristics on interdiffusion coefficients of Ni and Al atoms in beta-NiAl phase of aluminide coatings.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,20(2),196-198.
MLA	Wei, H,et al."Effect of substrate characteristics on interdiffusion coefficients of Ni and Al atoms in beta-NiAl phase of aluminide coatings".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 20.2(2004):196-198.