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High Temperature Oxidation Behavior of Fe3Al-Based Alloys |
Jianhong Ke; |
温州师范学院 物理系 |
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Abstract Mass gain curves of Fe3Al-based alloys oxidized in static state or under external tensile stress were studied and compared with those of 0Cr25Al5. It was observed that the static oxidation resistance of Fe3Al-based alloys was similar to that of 0Cr25Al5 at olw temperature, but better than 0Cr25Al5 above 900℃;and dynamic oxidation resistance of Fe3Al-based alloys was a little worse than that of 0Cr25Al5. Mass gain of alloys was not only dependent on temperature and oxidization time, but also on external tensile stress. A dynamic oxidation equation, △w=k1t3/2+k2t1/2, was concluded, and was in accordance with the experimental results.
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Received: 21 December 1998
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Corresponding Authors:
Jianhong Ke
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