| Fe-Mn-Si合金在H_2SO_4溶液中的耐蚀性 |
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| 引用本文： | 田如锦. Fe-Mn-Si合金在H_2SO_4溶液中的耐蚀性[J]. 大连铁道学院学报, 2011, 0(1): 61-64 |
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| 作者姓名： | 田如锦 |
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| 作者单位： | 大连交通大学材料科学与工程学院; |
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| 摘 要： | 通过电化学测量方法研究Fe-Mn-Si合金在H2SO4水溶液中的腐蚀行为.结果表明,Fe-Mn-Si合金在打磨过程中发生了应变诱发ε-马氏体转变,其表层结构为奥氏体和ε-马氏体.Fe-Mn合金的自腐蚀电流密度比Fe-Mn-Si合金低1个数量级.Fe-Mn-Si合金在0.1M H2SO4溶液中的腐蚀速度较快,这是因为ε-马氏体和奥氏体相间的电极电位不同,表面发生全面腐蚀.
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| 关 键 词： | Fe-Mn-Si合金 腐蚀 极化 应变诱发ε-马氏体 |
Corrosion Resistance of Fe-Mn-Si Alloys in H_2SO_4 Solution |
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| TIAN Ru-jin. Corrosion Resistance of Fe-Mn-Si Alloys in H_2SO_4 Solution[J]. Journal of Dalian Railway Institute, 2011, 0(1): 61-64 |
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| Authors: | TIAN Ru-jin |
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| Affiliation: | TIAN Ru-jin(School of Materials Science and Engineering,Dalian Jiaotong University,Dalian116028,China) |
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| Abstract: | Electrochemical properties of Fe-Mn-Si alloys are investigated in 0.1 M H2SO4 solution by electrochemical characterization technique.Experiment results show that strain-induced γ→ε-martensite transformation occurs during surface grounding.The surface microstructure of the Fe-Mn-Si alloys is composed of austenite and ε-martensite.Corrosion rate Icorr of the Fe-Mn alloy is one mangnitude lower than those of the Fe-Mn-Si alloys,which results from the electrode potential difference between austenite and ε-martensite in the Fe-Mn-Si alloys and the general corrosion on the alloy surface. |
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| Keywords: | Fe-Mn-Si alloy corrosion polarization strain-induced ε-martensite |
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