Oxidation behavior of ignition-proof magnesium alloys with rare earth addition
Oxidation behavior of ignition-proof magnesium alloys with rare earth addition
复制标题
添加稀土阻燃镁合金的氧化行为
DOI：
10.1016/j.jallcom.2010.10.168
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发表时间：
2011-02-03
影响因子：
6.2
通讯作者：
Xu, B. S.
中科院分区：
文献类型：
--
作者：
Fan, J. F.;Yang, Ch. L.;Xu, B. S.
在Mg-Y-Ce系中获得了阻燃镁合金，可以在1173K的空气中熔化，不需要任何保护。当Y的浓度大于10wt%时，在熔融的Mg-Y合金表面形成致密致密的氧化膜。随着Ce的加入，Y在镁Y合金中形成保护膜的临界浓度从10wt%显着降低到3wt%。俄歇电子能谱和X射线衍射分析表明，在Mg-3Y-4.5Ce合金表面形成的氧化膜主要由Y(2)O(3)和Ce(0.202)Y(0.798)O(1.601)组成。在理论分析和实验结果的基础上，建立了Mg-Y合金的高温选择氧化模型，并详细讨论了Ce在Mg-Y合金中的第三元素效应。(C)2010爱思唯尔B.V.保留所有权利。
Ignition-proof magnesium alloy is obtained in Mg-Y-Ce system, which can be melted at 1173K in air without any protections. A dense and compact oxide film is obtained on the surface of molten Mg-Y alloys when the concentration of Y is greater than 10 wt%. With the addition of Ce the critical concentration of Y in Mg-Y alloys for forming a protective film is decreased significantly from 10 wt% to 3 wt%. AES and XRD analysis reveal that the oxide film formed on the surface of Mg-3Y-4.5Ce alloy is mainly composed of Y(2)O(3) and Ce(0.202)Y(0.798)O(1.601). Based on the theoretic analysis and experimental results, a selective oxidation model of Mg-Y alloys at high temperatures is developed, and the third-element effects of Ce in Mg-Y alloys are discussed in detail. (C) 2010 Elsevier B.V. All rights reserved.