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

表1 3种镍基合金的元素组成

Table 1 Elemental compositions of three alloys (mass fraction / %)

Sample C Si Mn P S Cr Fe Al Mo Nb Ni Incoloy800 ≤0.1 ≤1.0 ≤1.5 ≤0.03 ≤0.02 21.0 43.45 0.4 --- --- Bal. Incoloy825 ≤0.03 ≤0.5 ≤1.0 --- --- 21.5 27.57 ≤0.2 3.0 --- Bal. Inconel625 0.03 0.1 0.3 0.007 0.002 21.8 4.0 0.2 8.7 3.4 Bal.