Effect of Zn Additions on the Oxidation of Cu-2 at.% Al and Cu-4 at.% Al Alloys in 1 atm O(2) at 800 A degrees C

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	Effect of Zn Additions on the Oxidation of Cu-2 at.% Al and Cu-4 at.% Al Alloys in 1 atm O(2) at 800 A degrees C
	F. Gao; F. Gesmundo; Y. Niu
	2009
发表期刊	Oxidation of Metals
ISSN	0030-770X
卷号	71 期号:1-2 页码:43-61
摘要	Four ternary Cu-Zn-Al alloys containing 5 or 10 at.% Zn and 2 or 4 at.% Al plus an alloy containing 2 at.% Al and 15 at.% Zn have been oxidized at 800 A degrees C in 1 atm O(2), and their behavior has been compared with that of the corresponding binary Cu-Zn and Cu-Al alloys. For the alloy containing 4 at.% Al, which is already able to form external alumina scales, the addition of Zn is only effective in reducing the mass gain during the fast, initial-oxidation stage. Conversely, the addition of 15 at.% Zn to Cu-2Al is able to prevent the formation of external scales containing mixtures of the Cu and Al oxides, resulting in the formation of external alumina scales after an initial stage of faster rate, producing a limited third-element effect. Finally, the addition of Al to both Cu-5Zn and Cu-10Zn is able to prevent the internal oxidation of Zn, producing a kind of reversed third-element effect. Possible mechanisms for these effects are examined on the basis of general treatments concerning the scaling behavior of ternary alloys.
部门归属	[gao, f.; niu, y.] cas, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [gesmundo, f.] univ genoa, dichep, i-16129 genoa, italy.;niu, y (reprint author), cas, inst met res, state key lab corros & protect, wencui rd 62, shenyang 110016, peoples r china;yniu@imr.ac.cn
关键词	Third-element Effect Oxidation Cu-zn-al Alloys Most-reactive Component Intermediate Oxidant Pressures Alpha-solid-solutions External Oxidation Ternary Alloys Internal Oxidation Transition Copper Diffusion Kinetics
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31916
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. Gao,F. Gesmundo,Y. Niu. Effect of Zn Additions on the Oxidation of Cu-2 at.% Al and Cu-4 at.% Al Alloys in 1 atm O(2) at 800 A degrees C[J]. Oxidation of Metals,2009,71(1-2):43-61.
APA	F. Gao,F. Gesmundo,&Y. Niu.(2009).Effect of Zn Additions on the Oxidation of Cu-2 at.% Al and Cu-4 at.% Al Alloys in 1 atm O(2) at 800 A degrees C.Oxidation of Metals,71(1-2),43-61.
MLA	F. Gao,et al."Effect of Zn Additions on the Oxidation of Cu-2 at.% Al and Cu-4 at.% Al Alloys in 1 atm O(2) at 800 A degrees C".Oxidation of Metals 71.1-2(2009):43-61.