Effect of Weld Heat Input and Pipe Wall Thickness on the Intergranular Stress Corrosion Behavior of 304 Stainless Steel Pipe Welds in Simulated Boiling Water Reactor Environment

  • Akashi Masatsune
    Research Institute, Ishikawajima-Harima Heauy Industries Co., Ltd.
  • Yoshida Kazuo
    Nuclear Power Division, Ishikawajima-Harima Heavy Industries Co., Ltd.
  • Tanaka Shinji
    Nuclear Power Division, Ishikawajima-Harima Heavy Industries Co., Ltd.
  • Kawamoto Teruaki
    Research Institute, Ishikawajima-Harima Heauy Industries Co., Ltd.

Bibliographic Information

Other Title
  • 沸騰水型原子炉模擬環境中における304ステンレス鋼管溶接継手の粒界応力腐食割れ挙動に及ぼす溶接入熱および管肉厚の影響

Description

The effects of the weld heat input and the pipe wall thickness on the intergranular stress corrosion cracking (IGSCC) behavior of 304 stainless steel pipe welds were studied by means of the CBB test in simulated boiling water reactor environment. Results are summarized as follows. (1) As the weld heat input becomes higher, the IGSCC susceptible region in the weld heat affected zone (HAZ) becomes more distant from the weld fusion line. However, the IGSCC susceptibility itself is not uniformly related to the weld heat input in such a manner that the IGSCC susceptibility at a weld heat input of 1, 000J/mm is rather higher than that at 2, 000J/mm. (2) As the pipe size (pipe wall thickness) becomes larger, the IGSCC susceptible region in HAZ becomes closer to the weld fusion line, and also the IGSCC susceptibility itself becomes higher. (3) These behavior are described from the viewpoints of the chromium depletion theory based on analytical results of the weld heat cycle.

Journal

  • CORROSION ENGINEERING

    CORROSION ENGINEERING 31 (7), 467-472, 1982

    Japan Society of Corrosion Engineering

Details 詳細情報について

  • CRID
    1572824502801483392
  • NII Article ID
    130006746134
  • Data Source
    • CiNii Articles

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