| Effect of temperature on oxidation behavior of ternary Fe-15Cu-5Al alloy in pure oxygen |
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| 作者姓名： | 向军淮 赵琼 张文华 |
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| 作者单位： | [1]Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China [2]School of Materials Science and Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China |
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| 基金项目： | Project （[2005]224） supported by Science and Technology Research Item of Jiangxi Provincial Department of Science and Technology |
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| 摘 要： | The effect of temperature on oxidation behavior of ternary Fe-15Cu-5Al （mole fraction, %） alloy in pure oxygen was studied. Fe-15Cu-5Al alloy presents an irregular high-temperature oxidation behavior between 700-1 000 ℃, though the kinetic curve at each temperature can be approximately considered as being composed of two quasi-parabolic stages. At 700 ℃ the alloy forms bulky stratified scales. On the contrary, at 800℃ the alloy forms an external protective Al2O3 layer. The trend of decrease of oxidation rate does not continue at elevated temperatures. Due to the high stress-growth effect at 900℃, the thin Al2O3 layer cannot completely prevent further oxidation of the alloy underneath. When the temperature rises to 1 000℃, the high stress-growth effect is more obvious and the alloy forms overgrown large nodules. Compared with the Fe-10Al binary alloy, the presence of 15 % Cu tends to greatly increase the flaw of the formed Al2O3 layer at elevated temperatures, resulting in a peculiar oxidation pattern of Fe- 15Cu-5Al alloy.
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| 关 键 词： | 铁 铜 铝 合金 氧化行为 压力 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
Effect of temperature on oxidation behavior of ternary Fe-15Cu-5Al alloy in pure oxygen |
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| XIANG Jun-huai, ZHA Qiong, ZHANG Wen-hua.Effect of temperature on oxidation behavior of ternary Fe-15Cu-5Al alloy in pure oxygen[J].Transactions of Nonferrous Metals Society of China,2007,17(A01):180-183. |
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| Authors: | XIANG Jun-huai ZHA Qiong ZHANG Wen-hua |
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| Affiliation: | XIANG Jun-huai, ZHA0 Qiong, ZHANG Wen-hua |
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| Abstract: | |
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| Keywords: | Fe-15Cu-5Al oxidation behavior stress-growth |
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