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KERD
논문KCI 등재

Influences of coatings and solution corrosivity on cathodic protection of metallic materials

2

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참고문헌

키워드

주제분류금속공학

초록

Painting has protected metallic stack but the paint films may be degraded and corrosion problem can be arisen. To protect the painted metal stack, cathodic protection can be applied. If cathodic protection is applied to bare metal, only small area may be protected. However, if cathodic protection is applied to painted metal surface, large area can be protected and the lifetime of paint films can be extended. High corrosion resistant alloys were corroded at a Flue Gas Desulfurization (FGD) facility of power plant within a short period and thus cathodic protection can be used to protect these metals. On the base of computer simulation, if cathodic protection is applied to bare metal in a FGD environment, it was estimated that applied current could almost be spent to protect area near the anode. However, if cathodic protection is applied to high resistant-coated metal, the much larger area from the anode could be effectively protected.

Abstract

Painting has protected metallic stack but the paint films may be degraded and corrosion problem can be arisen. To protect the painted metal stack, cathodic protection can be applied. If cathodic protection is applied to bare metal, only small area may be protected. However, if cathodic protection is applied to painted metal surface, large area can be protected and the lifetime of paint films can be extended. High corrosion resistant alloys were corroded at a Flue Gas Desulfurization (FGD) facility of power plant within a short period and thus cathodic protection can be used to protect these metals. On the base of computer simulation, if cathodic protection is applied to bare metal in a FGD environment, it was estimated that applied current could almost be spent to protect area near the anode. However, if cathodic protection is applied to high resistant-coated metal, the much larger area from the anode could be effectively protected

참고문헌 (8)

  1. "The role of nitrogen and molybdenum in the corrosion of stainless steels", pp.89~ (1999), The Electrochemical Society, Inc.,
  2. "The influence of W and Mo addition on the passivity of stainless steels", pp.513~ (1999), The Electrochemical Society, Inc.,
  3. "Super stainless steels for nuclear power plants", pp.605~ (2000), The Korean Institute of Metals and Materials
  4. "Localized corrosion resistance of high N and high chromium bearing stainless steels" (2001)
  5. "Effect of protection condition on cathodic protection of external painted stack surface of fossil fired power plants" (2003), Andong National University
  6. "Effect of exposed area on cathodic protection of external painted stack surface of fossil power plants" (2003), Hongik University
  7. "Metals and Materials International" (2006)
  8. "On line monitoring and controlling system of corrosion and corrosion protection using wire and wireless communication networks"

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