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AIR OXIDATION OF Fe-Y ALLOYS AT 800℃ |
FU Guangyan, YANG Ningning, WANG Yanyan |
School of Mechanical Engineering, Shenyang University of Chemical Technology, Shenyang 110142 |
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Abstract The oxidation behavior of Fe-5Y and Fe-10Y alloys was studied at 800℃ in air. The results indicate that the scaling kinetics is not irregular. The oxidation rate of Fe-10Y alloy is higher than Fe-5Y alloy. The scale formed on Fe-10Y alloy is substantially similar to that on Fe-5Y, also with severe internal oxidation. A single Y2O3 layer was not formed on the surface of alloy. These results were examined by taking into account the presence of intermetallic compounds in the alloys and the low ability of diffusion of yttrium in iron.
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Received: 12 October 2009
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Corresponding Authors:
FU Guangyan
E-mail: Fu_guangyan@126.com
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