Analysis of pore formation at oxide-alloy interfaces - I: Experimental results on FeAl

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	Analysis of pore formation at oxide-alloy interfaces - I: Experimental results on FeAl
	P. Y. Hou; Y. Niu; C. Van Lienden
	2003
发表期刊	Oxidation of Metals
ISSN	0030-770X
卷号	59 期号:1-2 页码:41-61
摘要	Pores, or voids, at oxide-alloy interfaces are commonly observed after high temperature oxidation when the alloy does not contain a reactive element. In order to under stand the pore-nucleation and growth processes, the density, size and depth of interfacial pores on Fe-40 at. %Al as a function of oxidation time at 1000degreesC were examined. Scanning-electron microscopy (SEM) and atomic force microscopy (AFM) were used to characterize the pores after removal of the surface Al2O3 scale. The nucleation of pores was most rapid during the initial stage of oxidation where cation-transported-alumina growth dominates. Pore growth involves widening as well as deepening, where the deepening rate is slower for larger pores. Growth is accomplished by aluminum evaporation after similar to20 min or by surface diffusion before that time. Pore shape within an alloy grain stays constant and is dictated by the balance of surface and interface energies.
部门归属	univ calif berkeley, lawrence berkeley lab, div mat sci, berkeley, ca 94720 usa. acad sinica, inst met res, state key lab corros & protect, shenyang 110015, peoples r china.;hou, py (reprint author), univ calif berkeley, lawrence berkeley lab, div mat sci, berkeley, ca 94720 usa
关键词	Al2o3 Fcal Oxide-metal Interface Void High-temperature Oxidation Oxidation Behavior Alpha-al2o3 Scales Cavity Formation beta-nial+zr Al Alloys Growth Spectrometry
URL	查看原文
WOS记录号	WOS:000182131200003
引用统计	被引频次：45[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/321006/35851
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. Y. Hou,Y. Niu,C. Van Lienden. Analysis of pore formation at oxide-alloy interfaces - I: Experimental results on FeAl[J]. Oxidation of Metals,2003,59(1-2):41-61.
APA	P. Y. Hou,Y. Niu,&C. Van Lienden.(2003).Analysis of pore formation at oxide-alloy interfaces - I: Experimental results on FeAl.Oxidation of Metals,59(1-2),41-61.
MLA	P. Y. Hou,et al."Analysis of pore formation at oxide-alloy interfaces - I: Experimental results on FeAl".Oxidation of Metals 59.1-2(2003):41-61.