亚临界/超临界水条件下镍基合金 (Incoloy800，825，625)的硫化腐蚀特性研究

张洁, 曲积钰, 卢金玲, 刘倩, 罗兴锜

Sulfidation Corrosion Behavior of Nickel-based Alloys (Incoloy800, 825 and 625) in Sub/supercritical Water

ZHANG Jie, QU Jiyu, LU Jinling, LIU Qian, LUO Xingqi

图4 3种镍基合金在25 MPa，520 ℃、S浓度为5000 mg/L的超临界水中暴露80 h后的截面背散射电子图及其主要元素线分布

Fig.4 Cross-sectional back-scattering electron image along with EDS line-scan profiles of the corrosion layer on Incoloy800 alloy (a, d), Incoloy825 alloy (b, e) and Incoloy625 alloy (c, f) exposed to supercritical water with 5000 mg/L sulfide at 25 MPa, 520 ℃ for 80 h