• Title/Summary/Keyword: 환경동태

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Effects of Alloying Elements(Cr, Mo, N) on Repassivation Characteristics of Stainless Steels Studied by the Abrading Electrode Technique and A.C Impedance Spectroscopy (마멸 전극 기법과 교류 임피던스법으로 연구한 스테인리스강의 합금원소(Cr, Mo, N)가 재부동태 특성에 미치는 영향)

  • Ham Dong-Ho;Kim Suk-Won;Lee Jae-Bong
    • Journal of the Korean Electrochemical Society
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    • v.3 no.4
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    • pp.211-218
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    • 2000

  • The effects of alloying elements, Cr, Mo, and N on repassivation characteristics of stainless steels were investigated by using the abrading electrode technique and a.c impedance spectroscopy. The role of alloying elements on the stability of passive film and their repassivation characteristics were examined using alloy steels such as Fe-Cr, Fe-Cr-Mo, 304, 304LN, 316, and 316LN. The electrochemical characteristics of the passive film were investigated by in-situ d.c. and a.c. electrochemical methods. Localized corrosion resistance is believed to have much to do with the stability and repassivation characteristics of the passive film. The effects of alloying elements on the current transients and repassivation kinetics were systematically examined by using the abrading electrode technique and a.c. impedance spectroscopy. The experimental results were analyzed in order to elucidate the relationship between passive film stability, repassivation characteristics, and alloying elements.

  • https://doi.org/10.5229/JKES.2000.3.4.211 인용 PDF