High-temperature oxidation resistance of austenitic stainless steels

被引:4
|
作者
Li Dong-sheng [1 ]
Li Dan [1 ]
Dou Hong [2 ]
Gao Pei [2 ]
Liu Yu [2 ]
Chen, Xiaojun [3 ]
Jiang, Xinchun [3 ]
Pei Jing-juan [4 ]
机构
[1] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
[2] Jiangsu Yinhuan Precis Steel Tube Co Ltd, Yixing 214203, Peoples R China
[3] Wuxi Jiangnan Cable Co Ltd, Yixing 214251, Peoples R China
[4] Yixing Econ & Informat Technol Commiss, Yixing 214203, Peoples R China
来源
关键词
austenitic stainless steel; high temperature oxidation; oxide scale;
D O I
10.4028/www.scientific.net/KEM.575-576.414
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The oxidation kinetic curves of four kinds of austenitic stainless steel at 700 degrees C was measured by weighting method. It is showed that the oxidation curves of those austenitic stainless steels follow the parabolic law. The mass gain of 800Al steel. is the least of all. The surfacemorphology and structure of the oxide scale were studied by scanning electron microscopy and X-ray diffraction methods. It is found that adense oxide scale formed at 700 degrees C in all four austenitic stainless steels. In austenitic stainless steel with high Mn content, scales are mainly composed of Mn2O3 and the spinel MnFe2O4. Scales of austenitic stainless steel with high Cr content but without element Al are composed by Cr2O3 and the small amount of spinel FeCr2O4. Scales of austenitic stainless steel with element Al and Cr are composed of(Fe0.6Cr0.4)2O3 and Al oxide, showing the excellent oxidation resistance property.
引用
收藏
页码:414 / +
页数:2
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