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研究了双相钢在流动含砂的 ３．５％ ＮａＣｌ溶液中的磨损腐蚀规律，测定、分析了流动体系中的电化学阻抗谱，揭示了双相钢磨损腐蚀过程中电化学的作用及其机制．结果表明，腐蚀电化学因素在磨损腐蚀过程中起主要作用，流体力学因素只是加速了腐蚀电化学过程．阻抗谱在低频区出现一直线段和低频收缩现象，分别是双相钢在磨损腐蚀过程中电极处于自钝化状态，并受离子在钝化膜中的扩散、迁移过程控制和电极表面局部遭受破坏的特征．对于流动体系中电化学阻抗谱的分析，曹氏阻抗理论同样适用．
The wear and corrosion of dual phase steel in flowing sand-containing 3.5% NaCl solution was studied. The electrochemical impedance spectroscopy in flow system was measured and analyzed. The electrochemical action of mechanism. The results show that the corrosion electrochemical factors play a major role in the process of wear and tear corrosion, hydrodynamic factors only accelerate the electrochemical corrosion process. Impedance spectrum appeared in a straight line at low frequency and low-frequency shrinkage, respectively, the wear-corrosion process of dual-phase electrode in a self-passivation electrode, and ion diffusion in the passivation film, the migration process control and local damage to the electrode surface Characteristics. For the analysis of electrochemical impedance spectroscopy in flow systems, the theory of Caosho impedance is equally applicable.