Oxidation of ferritic and ferritic-martensitic steels in flowing and static supercritical water
Oxidation of ferritic and ferritic-martensitic steels in flowing and static supercritical water
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DOI：
10.1016/j.corsci.2015.10.017
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发表时间：
2016-02
影响因子：
8.3
通讯作者：
Naiqiang Zhang;Zhongliang Zhu;Hong Xu;X. Mao;Ju Li
中科院分区：
文献类型：
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作者：
Naiqiang Zhang;Zhongliang Zhu;Hong Xu;X. Mao;Ju Li
研究了铁素体钢和铁素体-马氏体钢在550 ~ 600℃的流动和静态超临界水中的氧化反应。在流动和静态SCW下，样品的氧化动力学曲线分别遵循抛物线和近立方速率方程。物相分析结果表明，流动水样中存在赤铁矿、磁铁矿和尖晶石相，而静态水样中只存在磁铁矿和尖晶石相。讨论了赤铁矿的形成机理以及水化水的流动状态对氧化动力学时间指数的影响。
The oxidation of ferritic steel and ferritic–martensitic steel was investigated by exposure to flowing and static supercritical water (SCW) at 550–600 °C. The oxidation kinetic curves follow parabolic and near-cubic rate equations for the samples exposed to flowing and static SCW, respectively. The phase analysis shows the presence of hematite, magnetite and spinel in flowing SCW while only the magnetite and spinel phases are identified in static SCW. The mechanism of the formation of hematite and the effect of the flow state of SCW on the time exponent of oxidation kinetics are discussed.