Preparation of Fe-50Cu nanocrystalline coating and its oxidation performance

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	Preparation of Fe-50Cu nanocrystalline coating and its oxidation performance
	Y. S. Li; Y. Niu; W. T. Wu
	2000
发表期刊	Acta Physico-Chimica Sinica
ISSN	1000-6818
卷号	16 期号:10 页码:920-925
摘要	A super-saturated solution of Fe-50Cu nanocrystalline coating was prepared using magnetron sputtering, and thermogravimetric analysis was performed at 800 degreesC in air both for the coating and as-cast Fe-50Cu alloy, in order to study the effect of grain size changes on the oxidation behavior of the two-phase alloys.; The results showed that a complex external scale containing the oxides of iron and copper and their double oxides had been formed in the as-cast alloy, combined with an internal oxidation of iron. However, an exclusive external oxidation of iron took place for the coating after a short time, while an internal oxidation of iron was present again in the matrix once the coating degraded completely. The transition mechanism of the above oxidation modes was attributed to an enlarged solubility of iron in copper provided by the grain size reduction in the coating, and also to the presence of high density of grain boundaries both in the coating and in the oxide layer,which could act as short-circuit diffusion paths and therefore resulted in the changes of the microstructure of the initial oxide scale.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110015, peoples r china.;li, ys (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110015, peoples r china
关键词	Fe-cu Nanocrystallization Oxidation Mode Fe-y Alloys 600-800-degrees-c Pressures System Oxygen
URL	查看原文
WOS记录号	WOS:000168532200010
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37097
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. S. Li,Y. Niu,W. T. Wu. Preparation of Fe-50Cu nanocrystalline coating and its oxidation performance[J]. Acta Physico-Chimica Sinica,2000,16(10):920-925.
APA	Y. S. Li,Y. Niu,&W. T. Wu.(2000).Preparation of Fe-50Cu nanocrystalline coating and its oxidation performance.Acta Physico-Chimica Sinica,16(10),920-925.
MLA	Y. S. Li,et al."Preparation of Fe-50Cu nanocrystalline coating and its oxidation performance".Acta Physico-Chimica Sinica 16.10(2000):920-925.