Oxidation behavior of ODS Fe-Cr alloys

被引：17

作者：

Pint, BA ^{[1
]}

Wright, IG ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Met & Ceram Div, Oak Ridge, TN 37831 USA

来源：

OXIDATION OF METALS | 2005年 / 63卷 / 3-4期

关键词：

oxide dispersion strengthened; ferritic steel; oxidation; water vapor; reactive element effect;

D O I：

10.1007/s11085-004-3200-9

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Four experimental oxide dispersion strengthened (ODS) Fe-(13-14 at.%) Cr ferritic alloys were exposed for up to 10,000 hr at 700-1100 degrees C in air and in air with 10 vol.% water vapor. Their performance has been compared to other commercial ODS and stainless steel alloys. At 700-800. C, the reaction rates in air were very low for all of the ODS Fe - Cr alloys compared to stainless steels. At 900 degrees C, a Y2O3 dispersion showed a distinct benefit in improving oxidation resistance compared to an Al2O3 dispersion or no addition in the stainless steels. However, for the Fe-13% Cr alloy, breakaway oxidation occurred after 7,000 hr at 900 degrees C in air. Exposures in 10% water vapor at 800 and 900 degrees C and in air at 1000 and 1100 degrees C showed increased attack for this class of alloys. Because of the relatively low Cr reservoirs in these alloys, their maximum operating temperature in air will be below 900 degrees C.

引用

页码：193 / 213

页数：21

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