Effects of water chemistry on stress corrosion cracking of 316NG weld metals in high temperature water

Z. P. Lu, T. Shoji, Y. Takeda

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Effects of dissolved oxygen concentration from 0/2 to 11 ppm on stress corrosion cracking growth rates of 316NG weld metals in pure water at 288°C were investigated. Crack growth rates in the weld metal with a ferrite content of about 6.5 wt-% are higher than those in the weld metal with a ferrite content of about 8.5 wt-% under the same test environments, which increased with increasing dissolved oxygen concentration from 0.2 to 2 ppm. The dependence of crack growth rates on dissolved oxygen concentration in the range from 2 to 11 ppm was affected by the ferrite content in the weld metals.

Original languageEnglish
Pages (from-to)41-48
Number of pages8
JournalCorrosion Engineering Science and Technology
Volume50
Issue number1
DOIs
Publication statusPublished - 2015 Feb 1

Keywords

  • 316NG weld metal
  • Boiling water reactors
  • Crack growth rate
  • Dissolved oxygen concentration
  • Ferrite content
  • High temperature water
  • Stress corrosion cracking

ASJC Scopus subject areas

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

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