| High-Temperature Oxidation Behavior of 5Cr21Mn9Ni4N Steel Micro-Alloyed by Rare Earth |
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| 引用本文： | Yu Shichang Wu Shenqing Gong Youjun Gong Yuansheng Lian Mingsheng Ye Gang Cheng Yijun. High-Temperature Oxidation Behavior of 5Cr21Mn9Ni4N Steel Micro-Alloyed by Rare Earth[J]. 中国稀土学报(英文版), 2006, 24(3): 267-267 |
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| 作者姓名： | Yu Shichang Wu Shenqing Gong Youjun Gong Yuansheng Lian Mingsheng Ye Gang Cheng Yijun |
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| 作者单位： | [1]Department of Material Science and Engineering, Southeast University, Nanjing210096, China [2]Jiangsu Shenyuan Special Steel Company, Ltd., Xinghua 225722, China |
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| 摘 要： | The oxidation resistance of 5Cr21Mn9Ni4N steel micro-alloying by RE at 700 - 900 ℃ was investigated. The results indicate that oxidation exponent n and oxidation activation energy are increased, and oxidation velocity constant kp is decreased when 0.2% RE is added in 5Cr21Mn9Ni4N steel. The addition of RE elements does not alter phase constitution of oxidation scale, however it improves the configuration of oxidation scale, and increases thermal stability and adhesivity of oxidation scale, which results in the raise of oxidation resistance of 5Cr21Mn9Ni4N steel at high temperature. The oxidation scale constitutes of refractory steel transfer from manganic oxide mostly to ferric oxide mostly with the increase of temperature, which leads to descend of compactness and desquamation resistance of oxidation scale. The mass increase of ferric oxide in the oxidation scale and the looseness of oxidation scale are the main reason to descend the oxidation resistance of refractory steel.
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| 关 键 词： | 高温氧化 5Cr21Mn9Ni4N 稀土 微合金化 氧化抗力 |
High-Temperature Oxidation Behavior of 5Cr21Mn9Ni4N Steel Micro-Alloyed by Rare Earth |
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| Yu;Shichang;Wu;Shenqing;Gong;Youjun;Gong;Yuansheng;Lian;Mingsheng;Ye;Gang;Cheng;Yijun. High-Temperature Oxidation Behavior of 5Cr21Mn9Ni4N Steel Micro-Alloyed by Rare Earth[J]. Journal of Rare Earths, 2006, 24(3): 267-267 |
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| Authors: | Yu Shichang Wu Shenqing Gong Youjun Gong Yuansheng Lian Mingsheng Ye Gang Cheng Yijun |
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| Abstract: | |
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| Keywords: | 5Cr21Mn9Ni4N steel oxidation kinetics oxidation scale oxidation resistance rare earths |
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