Retarding effect of prior-overloading on stress corrosion cracking of cold rolled 316L SS in simulated PWR water environment

Junjie Chen, Zhanpeng Lu, Qian Xiao, Xiangkun Ru, Jiarong Ma, Tetsuo Shoji

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The effect of prior single tensile overloading on the stress corrosion cracking behavior of cold rolled 316L in a simulated PWR water environment at 310 °C was investigated. SCC growth retardation by overloading was observed in cold rolled 316L specimens in both the T-L and L-T orientations. The stretch zone observed on the fracture surfaces of the overloaded specimens affected SCC propagation. The compressive residual stress induced by overloading process reduced the effective driving force of SCC propagation. The negative dK/da effect ahead of the crack tip likely contributes to the retardation of SCC growth. The duration of overloading is dependent on water chemistry and the local stress conditions.

Original languageEnglish
Pages (from-to)313-324
Number of pages12
JournalJournal of Nuclear Materials
Volume496
DOIs
Publication statusPublished - 2017 Dec 1

Keywords

  • 316L stainless steel
  • Cold rolling
  • Pressurized water reactor
  • Single tensile overloading
  • Stress corrosion cracking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

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