Oxidation resistance of alloy 800H at elevated temperature

被引：0
|
作者：
Cheng, Xiao-Nong [1 ]
Wang, Rong-Rong [1 ]
Li, Dong-Sheng [1 ]
Dai, Qi-Xun [1 ]
Huang, Yan [1 ]
Liu, Yu [2 ]
Tao, Ya-Ping [2 ]
机构：
[1] School of Materials Science and Technology, Jiangsu University, Zhenjiang 212013, China
[2] Jiangsu Yinhuan Precision Steel Tube Co Ltd, Yixing 214203, China
来源：
Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment | 2012年 / 33卷 / 06期
关键词：
Alloy 800 - Alloy 800H - Elevated temperature - High temperature - Inner layer - Outer layer - Oxidation kinetics - Oxide scale - Thermodynamic calculations - Thermodynamics and kinetics - Three-layer - Tin particles;
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摘要：
Oxidation kinetics, morphology and constitution of oxides formed on alloy 800 H at high temperature were analyzed by means of X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. The results show that the scales formed at 700°C are similar to that formed at 800°C, mainly composed of (Cr, Fe)2O3 and Mn-Cr oxides. The scales formed at 900°C are much thicker with three layers: an inner layer of Cr2O3, an interlayer of Cr-Fe-Mn oxides and an outer layer of Ti-riched oxides. The oxidation of 800H alloy is simulated by thermodynamics and kinetics calculation, and TiN particles are considered to change the scales structure.
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页码：95 / 99
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