The oxidation of two ternary Ni-Cu-10 at.% Al alloys in 1 atm of pure O-2 at 800-900 degrees C

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	The oxidation of two ternary Ni-Cu-10 at.% Al alloys in 1 atm of pure O-2 at 800-900 degrees C
	J. H. Xiang; F. Gesmundo; Y. Niu
	2004
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	46 期号:8 页码:2025-2039
摘要	The oxidation of the ternary alloys Ni-45Cu-10Al and Ni-30Cu-10Al has been studied at 800-900 degreesC under 1 atm O-2. The presence of 10 at.% Al reduces significantly the oxidation rate of the corresponding Cu-Ni alloys during the initial oxidation stages, even before the establishment of a complete Al2O3 layer. The weight of individual sample of the two ternary NiCu-10Al alloys at 800 degreesC increases more rapidly than at 900 degreesC during the initial oxidation stage. As oxidation proceeds, the weight gain at 800 degreesC slows down to a degree that the total weight gain after 24 h oxidation at 800 degreesC is less than that at 900 degreesC. Due to a faster formation of the Al2O3 layer, which suppresses earlier the further oxidation of Cu and Ni, the external region of the scales grown on Ni-45Cu-10Al contain much less Cu and Ni oxides than those grown on Ni-30Cu-10Al. The transition from the internal oxidation to the selective external oxidation of the most reactive component Al in Ni-Cu-Al alloys is favored by higher values of the Al content, of temperature and of the Cu/Ni ratio. (C) 2003 Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. univ genoa, dipartimento ingn chim, i-16129 genoa, italy.;niu, y (reprint author), chinese acad sci, inst met res, state key lab corros & protect, wencui rd 62, shenyang 110016, peoples r china;yniu@icpm.syb.ac.cn
关键词	Ternary Alloys Nickel-copper Base Oxidation Aluminium Effect Forming Insoluble Oxides Approximate Analysis External Oxidation Oxidant Pressures Aluminum-alloys Scale Nickel Microstructure Growth
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WOS记录号	WOS:000222843300014
引用统计	被引频次：11[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/321006/35647
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. H. Xiang,F. Gesmundo,Y. Niu. The oxidation of two ternary Ni-Cu-10 at.% Al alloys in 1 atm of pure O-2 at 800-900 degrees C[J]. Corrosion Science,2004,46(8):2025-2039.
APA	J. H. Xiang,F. Gesmundo,&Y. Niu.(2004).The oxidation of two ternary Ni-Cu-10 at.% Al alloys in 1 atm of pure O-2 at 800-900 degrees C.Corrosion Science,46(8),2025-2039.
MLA	J. H. Xiang,et al."The oxidation of two ternary Ni-Cu-10 at.% Al alloys in 1 atm of pure O-2 at 800-900 degrees C".Corrosion Science 46.8(2004):2025-2039.