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Title:
Effect of diffusion on coating microstructure and oxidation resistance of aluminizing steel
Author: Xia Y(夏原); Yu SX(于升学); Yao M(姚枚); Li TF
Source: Transactions of Nonferrous Metals Society of China
Issued Date: 2001
Volume: 11, Issue:6, Pages:817-821
Abstract: The effect of diffuse treatment on coating microstructure and oxidation resistance at high-temperature of hot-dip aluminum were studied by means of TEM, SEM and XRD. The results show that, the diffusion temperature has significant effect on structure of coatings and its oxidation resistance. After diffusion at 750 degreesC, the coating consists of thick outer surface layer (Fe2Al5+ FeAl2), thin internal layer (FeAl + stripe FeAl2), and its oxidation resistance is poor. After diffusion at 950 degreesC, the outer surface layer is composed of single FeAl2 phase, the internal layer is composed of FeAl phase, and its oxidation resistance declines due to the occurrence of early stage internal oxidation cracks in the coating. After diffusion at 850 degreesC, the outer surface layer becomes thinner and consists of FeAl2 Fe2Al5(small amount), the internal layer becomes thicker and consists of FeAl+spherical FeAl2, and the spheroidized FeAl2 phase in the internal layer and its existing in FeAl phase steadily improve the oxidation resistance of the coating.
Language: 英语
Indexed Type: SCI
DOC Type: Article
WOS Subject: Metallurgy & Metallurgical Engineering
WOS Subject Extended: Metallurgy & Metallurgical Engineering
WOS ID: WOS:000172554300002
ISSN: 1003-6326
Subject: 力学
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/17279
Appears in Collections:力学所知识产出(1956-2008)_期刊论文

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Recommended Citation:
Xia Y,Yu SX,Yao M,et al. Effect of diffusion on coating microstructure and oxidation resistance of aluminizing steel[J]. Transactions of Nonferrous Metals Society of China,2001-01-01,11(6):817-821.
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