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在3.5%NaCl溶液中添加不同去极化剂对低合金钢进行了15 d的加速腐蚀试验,采用电化学测量、激光拉曼光谱分析和电位、pH值检测等手段,分别从加速腐蚀试验的模拟性、加速性和重现性三方面评价加速腐蚀试验方法的可靠性.结果发现:含H2O2体系与天然海水体系中低合金钢腐蚀形貌相似、锈层组成相同,其腐蚀机理也相似,这表明H2O2适合作为加速低合金钢腐蚀的去极化剂.
In the 3.5% NaCl solution, different depolarizers were added to accelerate the corrosion test of low alloy steels for 15 days. Electrochemical measurements, laser Raman spectroscopy and potentiometric and pH measurements were used to measure the corrosion resistance of low alloyed steels. Simulation, acceleration and reproducibility.The results show that the corrosion behavior of low alloy steel containing H2O2 system is similar to that of natural seawater system, the composition of rust layer is the same and the corrosion mechanism is similar, This indicates that H2O2 is suitable as a depolarizer for accelerating the corrosion of low-alloy steels.