Effect of hydrogen in Inconel Alloy 600 on corrosion in high temperature oxygenated water

J. Hou, Q. J. Peng, K. Sakaguchi, Y. Takeda, J. Kuniya, T. Shoji

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Corrosion test on hydrogen charged and uncharged coupons of Inconel Alloy 600 in high temperature oxygenated water showed more weight loss of charged coupon. Observation of the oxide film by transmission electron microscopy (TEM) showed a defective, thicker oxide layer on charged coupon. Analyses of the oxide film by TEM-energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy indicated enrichment of Ni but depletion of Cr in the oxide film on charged coupon. The changes in corrosion behavior and microstructure of the oxide film were most likely due to the hydrogen enhanced preferential dissolution of Cr cations in the water.

Original languageEnglish
Pages (from-to)1098-1101
Number of pages4
JournalCorrosion Science
Volume52
Issue number3
DOIs
Publication statusPublished - 2010 Mar

Keywords

  • A. Inconel Alloy 600
  • B. TEM
  • B. XPS
  • C. Corrosion in high temperature water
  • C. Hydrogen enhanced corrosion
  • C. Oxide film

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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