Oxidation of two ternary Fe-Cu-5 at.% al alloys in 1 atm of pure O-2 at 800 degrees C

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	Oxidation of two ternary Fe-Cu-5 at.% al alloys in 1 atm of pure O-2 at 800 degrees C
	Xiang, JH ; Niu, Y ; Gesmundo, F
通讯作者	Niu, Y()
	2004-06-01
发表期刊	OXIDATION OF METALS
ISSN	0030-770X
卷号	61 期号:5-6 页码:403-421
摘要	The oxidation of two two-phase ternary Fe - Cu - Al alloys containing about 5 at.% aluminium, one Fe-rich and one Cu-rich, has been studied at 800degreesC under 1 atm O-2. The Fe- rich alloy (Fe - 15Cu - 5Al) shows two parabolic stages, with a large decrease of the parabolic rate constant after about 2 hr. The presence of 5 at.% Al reduces significantly the oxidation rate of this alloy with respect to a binary Fe- Cu alloy of similar composition by forming an external alumina scale. Moreover, the addition of 15 at.% Cu is able to reduce the critical aluminium content needed to form alumina scales with respect to binary Fe - Al alloys. On the contrary, the Cu-rich Fe - 85Cu-5Al alloy presents a single parabolic stage and forms a thick and porous external scale composed of an outermost layer of copper oxides and an inner region containing a mixture of copper and Fe - Al oxides, coupled to the internal oxidation of iron and aluminium. As a result, the oxidation of the Cu-rich ternary alloy at 800degreesC is much faster than that of the Fe- rich ternary alloy.
关键词	ternary alloys iron-copper base oxidation aluminium effect
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:000222171800004
出版者	KLUWER ACADEMIC/PLENUM PUBL
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/81451
通讯作者	Niu, Y
作者单位	1.Chinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Genoa, DICheP, I-16129 Genoa, Italy
推荐引用方式 GB/T 7714	Xiang, JH,Niu, Y,Gesmundo, F. Oxidation of two ternary Fe-Cu-5 at.% al alloys in 1 atm of pure O-2 at 800 degrees C[J]. OXIDATION OF METALS,2004,61(5-6):403-421.
APA	Xiang, JH,Niu, Y,&Gesmundo, F.(2004).Oxidation of two ternary Fe-Cu-5 at.% al alloys in 1 atm of pure O-2 at 800 degrees C.OXIDATION OF METALS,61(5-6),403-421.
MLA	Xiang, JH,et al."Oxidation of two ternary Fe-Cu-5 at.% al alloys in 1 atm of pure O-2 at 800 degrees C".OXIDATION OF METALS 61.5-6(2004):403-421.