Cu含量对Q420钢在货油舱内底板环境下腐蚀行为的影响

刘超, 代文贺, 王克俊, 陈增耀, 安雁军, 刘智勇

Effect of Cu Content on Corrosion Behavior of Q420 Steel in an Artificial Solution of Bottom Plate Environment of Cargo Oil Tanks

LIU Chao, DAI Wenhe, WANG Kejun, CHEN Zengyao, AN Yanjun, LIU Zhiyong

表1 不同成分实验钢的化学成分 (mass fraction / %)

Table 1 Chemical compositions of the testing steels containing different contents of Cu

Sample C Si Mn P Al S Cu Ni Cr Nb Ti Ca 0Cu 0.11 0.47 1.42 0.0095 0.031 0.027 - 0.23 0.45 0.063 0.015 ≤0.05 0.5Cu 0.11 0.36 1.32 0.0093 0.031 0.022 0.52 0.22 0.39 0.028 0.015 ≤0.05 1Cu 0.10 0.30 1.49 0.0085 0.032 0.025 1.03 0.2 0.36 0.028 ≤0.01 ≤0.05 1.5Cu 0.096 0.22 1.52 0.0090 0.035 0.026 1.68 0.22 0.38 0.028 0.014 ≤0.05 2Cu 0.096 0.23 1.43 0.0086 0.036 0.026 2.04 0.21 0.36 0.024 0.012 ≤0.05