Graph theory and the passivity of iron-chromium binary alloys

被引：0
|
作者：
McCafferty, E [1 ]
机构：
[1] USN, Res Lab, Washington, DC 20375 USA
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2000年 / 3卷 / 01期
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D O I：
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中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Using graph theory, it is shown that the introduction of 70 atom % of Fe+3 into a -Cr-O-Cr- oxide network serves to disjoin the network, or conversely, introduction of 30% atomic concentration of Cr+3 serves to provide a connected -Cr-O-Cr- network. The results of surface analysis show that this concentration of 30 atom % Cr+3 in the oxide film corresponds to 13 atom % chromium in the Fe-Cr alloy, i.e., the critical concentration of Cr required for passivity in Fe-Cr binary alloys. (C) 1999 The Electrochemical Society. S1099-0062(99)09-009-4. All rights reserved.
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页码：28 / 30
页数：3
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