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首页> 外文期刊>Corrosion science >High temperature oxidation of Fe-Al and Fe-Cr-Al alloys: The role of Cr as a chemically active element
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High temperature oxidation of Fe-Al and Fe-Cr-Al alloys: The role of Cr as a chemically active element

机译：Fe-Al和Fe-Cr-Al合金的高温氧化：Cr作为化学活性元素的作用

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摘要

Good high-temperature corrosion resistance of Fe-Al alloys in oxidizing environments is due to the a-Al2O3 film which is formed on the surface provided temperature is above 900 ℃ and the Al-content of the alloy exceeds the critical value. Ab initio calculations combined with experiments on Fe-13AI, Fe-18A1, Fe-23A1 and Fe-lOCr-lOAl alloys show that the beneficial effect of Cr on the oxidation resistance is significantly related to bulk effects. The comparison of experimental and calculated results indicates a clear correlation between the Fe-Cr chemical potential difference and the formation of the protective oxide scales.
机译：Fe-Al合金在氧化环境中具有良好的耐高温腐蚀性能，是由于在温度高于900℃且合金中Al含量超过临界值时，在表面上形成了a-Al2O3膜。从头算与结合Fe-13Al，Fe-18A1，Fe-23A1和Fe-10OCr-10Al合金的实验表明，Cr对抗氧化性的有利影响与体积效应显着相关。实验结果与计算结果的比较表明，Fe-Cr化学势差与保护性氧化皮的形成之间存在明显的相关性。

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  • 来源
    《Corrosion science》 |2010年第10期|P.3394-3404|共11页
  • 作者

    E. Airiskallio; E. Nurmi; M.H. Heinonen; I.J. Vaeyrynen; K. Kokko; M. Ropo; M.P.J. Punkkinen; H. Pitkaenen; M. Alatalo; J. Kollar; B. Johansson; L. Vitos;

  • 作者单位

    Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland Turku University Centre for Materials and Surfaces (MatSurf), Turku, Finland;

    rnDepartment of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland Turku University Centre for Materials and Surfaces (MatSurf), Turku, Finland Graduate School of Materials Research, Turku, Finland;

    rnDepartment of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland Turku University Centre for Materials and Surfaces (MatSurf), Turku, Finland;

    rnDepartment of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland Turku University Centre for Materials and Surfaces (MatSurf), Turku, Finland;

    rnDepartment of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland Turku University Centre for Materials and Surfaces (MatSurf), Turku, Finland;

    rnDepartment of Information Technology, Abo Akademi, Fl-20500 Turku, Finland Fritz-Haber-Institut der Max-Planck-Gesellschaft, D-14195 Berlin, Germany;

    rnDepartment of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland Turku University Centre for Materials and Surfaces (MatSurf), Turku, Finland Applied Materials Physics, Department of Materials Science and Engineering, Royal Institute of Technology, SE-10044 Stockholm, Sweden;

    rnDepartment of Mathematics and Physics, Lappeenranta University of Technology, P.O. Box 20, FI-53851 Lappeenranta, Finland;

    rnDepartment of Mathematics and Physics, Lappeenranta University of Technology, P.O. Box 20, FI-53851 Lappeenranta, Finland;

    rnResearch Institute for Solid State Physics and Optics, P.O. Box 49, Budapest H-1525, Hungary;

    rnApplied Materials Physics, Department of Materials Science and Engineering, Royal Institute of Technology, SE-10044 Stockholm, Sweden Department of Physics and Materials Science, Uppsala University, SE-75121 Uppsala, Sweden;

    rnApplied Materials Physics, Department of Materials Science and Engineering, Royal Institute of Technology, SE-10044 Stockholm, Sweden Research Institute for Solid State Physics and Optics, P.O. Box 49, Budapest H-1525, Hungary Department of Physics and Materials Science, Uppsala University, SE-75121 Uppsala, Sweden;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A. Alloy; A. Steel; B. AES; C. Oxidation; C. Passive films;

    机译：A.合金A.钢;B.AES;C.氧化;C.被动片;
  • 入库时间 2022-08-18 01:25:23

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