Experimental studies and modeling of the oxidation of multiphase niobium-base alloys
Experimental studies and modeling of the oxidation of multiphase niobium-base alloys
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DOI：
10.1016/j.corsci.2009.06.053
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发表时间：
2009-11
影响因子：
8.3
通讯作者：
Dengzun Yao;Chungen Zhou;Junying Yang;Haifeng Chen
中科院分区：
文献类型：
--
作者：
Dengzun Yao;Chungen Zhou;Junying Yang;Haifeng Chen
建立了一个三相氧化模型，用于研究多相合金的氧化行为。该模型已被用来识别三相铌基合金的氧化行为，并成功地预测了临界值的CrNbO4的独家形成。结果表明，NbCr2相体积分数的增加和NbCr2相颗粒尺寸的减小可以实现CrNbO4在Nb基合金上的排他性形成。此外，本文还推导了Nb_5Si_3相对Cr在Nb基合金中扩散的阻挡作用。
A three-phase oxidation model has been developed for study the oxidation behavior of multiphase alloys. This model has been utilized to identify the oxidation behavior of three-phase Nb-base alloys and successfully predicted the critical value for the exclusive formation of CrNbO4. It has shown that the exclusive formation of CrNbO4on the Nb-base alloys can be achieved by the volume fraction increasing and the particle size decreasing for NbCr2phase. Moreover, the barrier effect of Nb5Si3phase on the diffusion of Cr in Nb-base alloys has also been deduced in this work.