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首页> 外文会议>Critical factors in localized corrosion 7 >The Effect of Chloride on Passive Oxide Film Breakdown on Stainless Steels and Aluminum
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The Effect of Chloride on Passive Oxide Film Breakdown on Stainless Steels and Aluminum

机译：氯化物对不锈钢和铝钝化氧化膜击穿的影响

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摘要

The evidence for adsorption or incorporation of chloride ions (Cl~-) in the passive oxide film on stainless steels and Fe-Cr alloys appears to be contradictory, with some investigators reporting Cl~- in the oxide and others reporting its absence. We consider this issue by determining Cl~- adsorption and/or incorporation as a function of potential (below the pitting potential) on 316L stainless steel using X-ray photoelectron spectroscopy and compare our results to the literature on uptake of Cl~- by stainless steels and to studies on uptake of Cl~- on aluminum. The important finding is that no Cl~- is observed in the oxide film on 316L stainless steel whereas in the case of aluminum, Cl~- is incorporated into the oxide film. We present the case for those instances where Cl~- is observed in the oxide films on stainless steels and Fe-Cr alloys, these observations are a result of the experimental procedures employed.
机译：在不锈钢和Fe-Cr合金的被动氧化物膜中吸附或结合氯离子（Cl〜-）的证据似乎是矛盾的，一些研究者报告了氧化物中的Cl〜-，而另一些研究者报告了其缺乏。我们通过使用X射线光电子能谱确定316L不锈钢上的Cl〜-吸附和/或掺入量作为电位（低于点蚀电位）的函数来考虑此问题，并将我们的结果与不锈钢吸收Cl〜-的文献进行比较以及研究铝对Cl〜-的吸收。重要的发现是在316L不锈钢的氧化膜中未观察到Cl〜-，而在铝的情况下，Cl〜-被掺入了氧化膜中。我们介绍了在不锈钢和Fe-Cr合金的氧化膜中观察到Cl〜-的情况，这些观察结果是采用的实验程序的结果。

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  • 会议地点 Boston MA(US)
  • 作者

    P. M. Natishan; W. E. OGrady; F. J. Martin; R. J. Rayne; H. Kahn; A. H. Heuer;

  • 作者单位

    Chemistry Division, Naval Research Laboratory, Washington, DC 2037;

    Chemistry Division, Naval Research Laboratory, Washington, DC 2037;

    Chemistry Division, Naval Research Laboratory, Washington, DC 2037;

    Materials Sci. and Tech. Division, Naval Research Laboratory, Washington, DC 2037;

    Department of Materials Sci.and Engr., Case Western Reserve University, Cleveland, OH 44105;

    Department of Materials Sci.and Engr., Case Western Reserve University, Cleveland, OH 44105;

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