Oxidation behavior of ternary Fe-15Cu-5Al and Fe-85Cu-5Al alloys in pure oxygen at 900 degrees C

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	Oxidation behavior of ternary Fe-15Cu-5Al and Fe-85Cu-5Al alloys in pure oxygen at 900 degrees C
	J. H. Xiang; Y. Niu; X. Z. Duan
	2006
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	16 页码:S2038-S2041
摘要	The oxidation of two two-phase ternary Fe-Cu-Al alloys containing about 5%(mole fraction) aluminium, one Fe-rich and one Cu-rich, has been studied at 900 degrees C in 1 x 10(5) pa pure oxygen. The Fe-rich Fe-15Cu-5Al alloy presents two quasi-parabolic stages, with a large decrease of the parabolic rate constant after about 50 min. The presence of 5% At greatly reduces the oxidation rate of this alloy with respect to a binary Fe-Cu alloy of similar composition by forming an external protective Al2O3 layer, which is present near the scale/alloy interface. Due to the high stress-growth effect, this thin Al2O3 layer cannot completely prevent further oxidation of the alloy underneath. On the contrary, the Cu-rich Fc-85Cu-5Al alloy presents a single parabolic stage and forms a thick and porous external scale, coupled to the internal oxidation of Fe and Al. As a result, the oxidation of Cu-rich alloy at 900 degrees C is much faster than that of the Fe-rich alloy.
部门归属	jiangxi sci & technol normal univ, jiangxi key lab surface engn, nanchang 330013, peoples r china. chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china. xiangtan univ, key lab minist educ low dimens mat & appl technol, xiangtan 411105, peoples r china.;xiang, jh (reprint author), jiangxi sci & technol normal univ, jiangxi key lab surface engn, nanchang 330013, peoples r china;xiangjunhuai@163.com
关键词	Fe-15cu-5al Alloy Fe-85cu-5al Alloy Ternary Alloy Oxidation Behavior At.percent-al-alloys Forming Insoluble Oxides External Oxidation 1 Atm Approximate Analysis Oxidant Pressures Air Oxidation O-2 800-900-degrees-c
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WOS记录号	WOS:000244524400182
引用统计	被引频次：3[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/321006/34588
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. H. Xiang,Y. Niu,X. Z. Duan. Oxidation behavior of ternary Fe-15Cu-5Al and Fe-85Cu-5Al alloys in pure oxygen at 900 degrees C[J]. Transactions of Nonferrous Metals Society of China,2006,16:S2038-S2041.
APA	J. H. Xiang,Y. Niu,&X. Z. Duan.(2006).Oxidation behavior of ternary Fe-15Cu-5Al and Fe-85Cu-5Al alloys in pure oxygen at 900 degrees C.Transactions of Nonferrous Metals Society of China,16,S2038-S2041.
MLA	J. H. Xiang,et al."Oxidation behavior of ternary Fe-15Cu-5Al and Fe-85Cu-5Al alloys in pure oxygen at 900 degrees C".Transactions of Nonferrous Metals Society of China 16(2006):S2038-S2041.