Study on the Stress Corrosion Cracking Behaviour of Piping for Industrial Water

공업용수배관의 응역부식균열 거동에 관한 연구

  • Published : 1997.09.01

Abstract

Recently with the rapid development in the industries such as an iron mill and chemical plants, these are enlarged by the use of the piping. This piping was encountered the stress corrosion cracking(SCC) because of stress by water pressure and residual stress of welding etc. under industrial water. In this paper, the behaviour of stress corrosion cracking on the weld zone of steel pipe piping water(SPPW) were investigated according to pre-heat before welding in natural seawater(specific resistance : 25$\Omega$-cm). The main results obtained are as follows :1) The stress corrosion cracking for SPPW and SB 41 is most ready to propagate in heat affected zone of weldment. 2) The SCC sensitivity of SPPW on weldment is more susceptible than that of SB 41. 3) The stress corrosion cracking growth of heat affected zone is delayed by the preheat and dry of base metal and electrode before welding.

Keywords

References

  1. 한국박용기관학회지 v.10 no.1 金屬構造物의 應力과 腐蝕 林祐助
  2. 防食記術 v.34 埋設管の腐食と防食 澤田德秋
  3. 埋設配管腐食對策のツステム的考ぇ方 v.33 中島博志
  4. 韓國腐蝕學會志 v.11 no.4 水道管用 金屬材料의 腐蝕擧動硏究 朴鏞秀;洪淳力
  5. 防食技術 v.30 プロブを用いて地下埋設管の陰極防食レルを評價すゐ方法 笠原晃明
  6. 防食技術 v.32 鑄鐵管の黑鉛化腐食と强度劣化の關係 山本一雄;溝口 茂
  7. Cathodic Protection - How it Work-s Control of Pipe - Line Corrosion
  8. 防食技術 v.35 土壤の食性を考慮レに埋設覆裝管鋼の陰極防食クライテリォソ 笠原晃明;足立時彦
  9. 破壤力學實驗法 國尾 式;岡村弘之
  10. 最新熔接工學 金永植