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The Study on the Corrosion Characteristics of Cr Plating in Marine Environment

해양환경 중에서 Cr도금의 부식 특성에 관한 연구

  • 임우조 (부경대학교) ;
  • 곽남인 (부산기능대학) ;
  • 윤병두 (부경대학교 대학원)
  • Published : 2003.08.01

Abstract

Recently, with rapid development in marine and shipbuilding industries such as marine structures, ships and chemical plants for ship, there occurs much interest in the study on corrosion characteristics played an important role in mechanical design. This paper was studies on the corrosion characteristics of chromium plating in the marine environment. Under the various specific resistance, the electrochemical polarization test of chromium plating was carried out. And thus corrosion potential, polarization resistance, corrosion current density, control efficiency of corrosion and polarization control behavior of chromium plating are investigated. The main results are as the followed : 1. The polarization resistance of Cr plating and Ni become higher than that of base metal, also and these material become low with decrease of the specific resistance. 2. As the specific resistance decreases, the corrosion current density of Cr and Ni plating is lower than that of base metal. 3. The corrosion reaction of Cr plating, Ni plating and base metal vs. specific resistance is cathodic control.

Keywords

chromium plating;corrosion potential;corrosion current density;polarization resistance;marine environment

References

  1. Laque, Francis L.(1991) : Marine corrosion causes and prevention, John wiley & Sons, 95-99.
  2. 임우조.신종대(1998 : 가스저장탱크의 부식피로균열특성에 관한 연구, 한국어업기술학회지, 34(1) 30-36.
  3. Fontana & Greene(1986) : Corrosion engineering, 3rd ed, McGraw-Hill, 194-205.
  4. 임우조.이상열.윤병두(2001) : 산성용액 중에서 Ni-Cr합금 용사피복재의 부식과 침식 특성에 관한 연구, 한국부식학회지, 30(1), 11-18.
  5. 鋼材俱樂部(1986) : 鋼製魚가用組材標準仕樣, 14-27.
  6. Smith, W. F.(1981) : "Structure and properties of Engineering Alloys, Mc Graw-Hill", 270-304.
  7. 大谷南海男(1993) : 金屬表面工學, 日本日刊工業新聞社, 113-115.
  8. Thechewey, K. R. and Chamberlain, J.(1995) : Corrosion for Science and Enginering, Longman Scientific & Technical, 2nd edition, 165-168.
  9. 염희택.이주성(2002) : 도금.표면처리, 문운당, 2-3.
  10. 橫井 聰之(1989), 港灣構造物腐食の防食對策, 日本防食技術, Vol. 38, No. 7, 390-395.
  11. 배명일.김홍배(1998) : 크롬도금강의 초정밀 연마 가공특성, 한국공작기계학회지, 7(6), 97-101.
  12. 홍경태.도정만.허성강(1996) : COATech 96, 금속표면코팅 및 고무 라이닝 기술 Workshop 논문집, 136-137.
  13. 伊藤伍郞(1987) : 日本機械工學全書 6(腐食と防食), 日本コロナ社, 300-306.
  14. Jones, Denny A.(1991) : Principles and prevention of corrosion, Macmillan publising company, 370.