Journal of Surface Science and Engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
권호 표지
DOI QR코드

DOI QR Code

Corrosion Damage Characteristics of Inconel 600 with Reduction Conditions in Chemical Decontamination Process

화학제염공정에서 환원공정조건에 따른 Inconel 600의 부식손상 특성

  • Han, Min-Su (Division of Marine Engineering, Mokpo National Maritime University) ;
  • Jung, Kwang-Hu (Division of Marine Engineering, Mokpo National Maritime University) ;
  • Yang, Ye-Jin (Division of Marine Engineering, Mokpo National Maritime University) ;
  • Park, IL-Cho (Division of Marine Engineering, Mokpo National Maritime University) ;
  • Lee, Jung-Hyung (Division of Marine Engineering, Mokpo National Maritime University) ;
  • Kim, Seong-Jong (Division of Marine Engineering, Mokpo National Maritime University)
  • 한민수 (목포해양대학교 기관시스템공학부) ;
  • 정광후 (목포해양대학교 기관시스템공학부) ;
  • 양예진 (목포해양대학교 기관시스템공학부) ;
  • 박일초 (목포해양대학교 기관시스템공학부) ;
  • 이정형 (목포해양대학교 기관시스템공학부) ;
  • 김성종 (목포해양대학교 기관시스템공학부)
  • Received : 2017.10.11
  • Accepted : 2017.10.30
  • Published : 2017.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, we evaluated tendency and degree of corrosion damages of Inconel 600 after chemical decontamination treatments under three different conditions. In the decontamination processes, the oxidation and reduction were performed as one cycle. Each process was continued up to 5 cycles. Characteristics of corrosion under decontamination processes were evaluated by Tafel analysis and weight loss. Characteristics of surface damage were observed by scanning electron microscope(SEM) and three-dimensional(3D) microscope. As the cycle proceeded, weight loss and corrosion current density increased. Intergranular corrosion damage occurred on the surface of the materials. The result revealed that the surface of Inconel 600 was attacked by the strong acid solution under all chemical decontamination processes, but the degree of the corrosion damage was different depending on the processes.

Keywords

References

  1. J. S. Song, M. Y. Jung and S. H. Lee, A Study on the Applicability for Primary System Decontamination through Analysis on NPP Decommission Technology and International Experience. J. Nucl. Fuel Cycle Waste Technol. 14 (2016) 45-55. https://doi.org/10.7733/jnfcwt.2016.14.1.45
  2. J. Y. Jung, S. Y. Park, H. J. Won, S. B. Kim, W. K. Choi, J. K., Moon and S. J. Park, Corrosion properties of Inconel-600 and 304 stainless steel in new oxidative and reductive decontamination reagent. Met. Mater. Int., 21 (2015) 678-685. https://doi.org/10.1007/s12540-015-4572-x
  3. H. J Lee, D. W. Kang and Y. J Lee, An electrochemical study of stainless steels and a nickel alloy in a decontamination agent using the potentiodynamic method. Korea J. Chem. Eng., 21 (2004) 895-900. https://doi.org/10.1007/BF02705536
  4. R. A. Speranzini, Decontamination effectiveness of mixtures of citric acid, oxalic acid and EDTA (No. AECL--10109), Atomic Energy of Canada Ltd. (1990)
  5. S. J. Kim, S. K. Jang, and K. J. Kim, Evaluation of Safety Characteristic in Chemical Decontamination at Extremely Severe Condition of Stainless Steels for Coolant Pump. J. Korean Soc. Mar. Environ. & Saf., 12 (2006) 253-259.
  6. S. J. Kim, M. S. Han, J. I. Kim and K, J, Kim, Development of Chemical Decontamination Process of Stainless Steel for Reactor Coolant Pump. J. Korean inst. surf. eng., 40 (2007) 234-240. https://doi.org/10.5695/JKISE.2007.40.5.234
  7. S. J. Kim, M. S. Han, K. J. Kim and S. K. Jang, Evaluation on Safety of Stainless Steels in Chemical Decontamination Process with Immersion Type of Reactor Coolant Pump for Nuclear Reactor. Corr. Sci. Techno. 10 (2011) 167-174.
  8. E. B. Borghi, S. P Ali, P. J Morando and M. A. Blesa, Cleaning of stainless steel surfaces and oxide dissolution by malonic and oxalic acids. J. nucl. mater., 229 (1996) 115-123. https://doi.org/10.1016/0022-3115(95)00201-4
  9. J. Y. Jung, S. Y. Park, H. J. Won, W. K. Choi, J. K. Moon and S. J. Park, Crevice Corrosion Properties of PWR Structure Materials Under Reductive Decontamination Conditions. J. Korean Radioactive Waste Soc., 12 (2014) 199-209. https://doi.org/10.7733/jnfcwt.2014.12.3.199
  10. N. M. Martyak, P. McAndrew, J. E. McCaskie and J. Dijon, Electrochemical polymerization of aniline from an oxalic acid medium. Prog. Org. Coat., 45 (2002) 23-32. https://doi.org/10.1016/S0300-9440(02)00070-X
  11. M. Faiz, Specialty Polymers: Materials and Applications, I.K. International Publishing House Pvt. Ltd. (2007) 175.