高铁转向架用钢G390NH在模拟海洋和工业大气环境下的腐蚀行为及产物演化规律

宋嘉良, 江紫雪, 易盼, 陈俊航, 李曌亮, 骆鸿, 董超芳, 肖葵

Corrosion Behavior and Product Evolution of Steel for High-Speed Railway Bogie G390NH in Simulated Marine and Industrial Atmospheric Environment

SONG Jialiang, JIANG Zixue, YI Pan, CHEN Junhang, LI Zhaoliang, LUO Hong, DONG Chaofang, XIAO Kui

表4 0.01 mol/L NaHSO3环境中不同周期腐蚀产物半定量分析结果

Table 4 Semi-quantitative analysis results of corrosion products in different periods in 0.01 mol/L NaHSO3 environment

Sample Product analysis / (mass fraction, %) α / γ α-FeOOH γ-FeOOH Fe2O3 Fe3O4 120 h 80.0 5.6 14.4 - 14.29 240 h inner 79.5 6.7 13.8 - 11.87 240 h outer 79.8 7.7 12.6 - 10.36 360 h inner 78.5 9.2 - 12.3 8.53 360 h outer 77.9 8.8 9.9 3.4 8.85