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Investigation On High-Temperature Corrosion Behavior Of Inconel 600 Under So2-Bearing Gas At 650°C

Author

Listed:
  • KWANG-HU JUNG

    (Division of Marine Engineering, Mokpo Maritime University, 91 Haeyangdaehak–ro, Mokpo 58628, South Korea)

  • SEONG-JONG KIM

    (Division of Marine Engineering, Mokpo Maritime University, 91 Haeyangdaehak–ro, Mokpo 58628, South Korea)

Abstract

The corrosion characteristics of Inconel 600 were investigated at 650∘C in air and 76%N2+6%O2+16%CO2+2%SO2 gas environment up to 500h. Specimens exposed to each condition were characterized by weight gain, scanning electron microscope, energy dispersive X-ray spectroscopy and X-ray diffraction. The oxide structure consisting of the thin Cr2O3 layer and Cr2O3 nodules was observed, which increased the weight gain of specimens. In the SO2-bearing gas, it showed a bigger weight gain due to the coarsening of Cr2O3 nodules. Therefore, it was suggested that the sulfur-accelerated coarsening of Cr2O3 nodules at the high temperature.

Suggested Citation

  • Kwang-Hu Jung & Seong-Jong Kim, 2020. "Investigation On High-Temperature Corrosion Behavior Of Inconel 600 Under So2-Bearing Gas At 650°C," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 27(06), pages 1-8, June.
    • Handle: RePEc:wsi:srlxxx:v:27:y:2020:i:06:n:s0218625x19501555
    DOI: 10.1142/S0218625X19501555
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