Characterization of microstructure and local deformation in 316NG weld heat-affected zone and stress corrosion cracking in high temperature water

Zhanpeng Lu, Tetsuo Shoji, Fanjiang Meng, He Xue, Yubing Qiu, Yoichi Takeda, Koji Negishi

研究成果: Article査読

67 被引用数 (Scopus)

抄録

Microstructure and local deformation in 316NG weld heat-affected zones were measured by electron-back scattering diffraction and hardness measurements. With increasing the distance from the fusion line, kernel average misorientation decreases and the fraction of Σ3 boundaries increases. Stress corrosion cracking growth rates in high temperature water were measured at different locations in the heat-affected zones that correspond to different levels of strain-hardening represented by kernel average misorientation and hardness distribution. Intergranular cracking along random boundaries as well as extensive intergranular crack branching is observed in the heat-affected zone near the weld fusion line.

本文言語English
ページ(範囲)1916-1932
ページ数17
ジャーナルCorrosion Science
53
5
DOI
出版ステータスPublished - 2011 5

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 材料科学(全般)

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