Effect of Physical Parameters on Repassivation Process of Metal for Scratch Electrode Technique
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摘要: 針對擦傷電極技術中長期存在的擦傷過程時間相關性問題,詳細分析了其物理參量(擦傷時間和擦傷速度)對無膜表面最大表觀反應電流的影響,指出:隨著擦傷時間或擦傷速度的變化,無膜表面最大反應電流亦發生變化。這種變化將導致再鈍化動力學衰減參數的失真。因此,以往的擦傷方式不能真實反映與定量研究金屬材料的再鈍化過程。Abstract: Effect of physical parameters(scratching time and scratching velocity) during the scratching process on the maxium reaction current of bare surface has been discussed in detail. Analysis results indicate that the maxium reaction current of bare surface varies as the scratching time or velocity changes.This kind of variation would make the decay parameter of repassivation kinetics distort.So the traditional scratch method is not able to investigate quantitalively the repassivation process of metals.
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Key words:
- scratch electroade /
- repassivation /
- metal
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