The internal oxidation of ternary alloys. V: The transition from internal to external oxidation of the most-reactive component under low oxidant pressures

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	The internal oxidation of ternary alloys. V: The transition from internal to external oxidation of the most-reactive component under low oxidant pressures
	F. Gesmundo; Y. Niu
	2004
发表期刊	Oxidation of Metals
ISSN	0030-770X
卷号	62 期号:5-6 页码:375-390
摘要	This paper examines the conditions for the transition from internal to external oxidation of the most-reactive component C of ternary A-B C alloys by a single oxidant under gas-phase oxidant activities below the stability of the oxide of the two most-reactive components using Wagner's criterion. Tor this, approximate relations between the solubility and diffusivity of oxygen and the composition of the binary A-B alloy matrix in the zone of internal oxidation, already developed previously, are used. The critical C content needed for the transition in ternary alloys is calculated as a junction of the many parameters involved. At variance with the behavior of binary alloys, for ternary alloys this critical C content depends also on the ratio between the concentrations of A and B in the bulk alloy. The results calculated for ternary alloys are compared with those obtained for binary A-C and B-C alloys under the same values of all the relevant parameters. Finally, complete oxidation maps for ternary alloys under low oxidant pressures, including the condition for the stability of external scales of the C oxide, are also presented.
部门归属	cas, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. univ genoa, dipartimento ingn chim & proc, 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	Ternary Alloys Low Oxidant Pressures Transition From Internal Oxidation
URL	查看原文
WOS记录号	WOS:000226001700005
引用统计	被引频次：11[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/321006/35362
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. Gesmundo,Y. Niu. The internal oxidation of ternary alloys. V: The transition from internal to external oxidation of the most-reactive component under low oxidant pressures[J]. Oxidation of Metals,2004,62(5-6):375-390.
APA	F. Gesmundo,&Y. Niu.(2004).The internal oxidation of ternary alloys. V: The transition from internal to external oxidation of the most-reactive component under low oxidant pressures.Oxidation of Metals,62(5-6),375-390.
MLA	F. Gesmundo,et al."The internal oxidation of ternary alloys. V: The transition from internal to external oxidation of the most-reactive component under low oxidant pressures".Oxidation of Metals 62.5-6(2004):375-390.