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09CuPCrNi-A耐大气腐蚀钢电化学阻抗研究

, PP. 437-439

Keywords: 耐大气腐蚀钢,电化学阻抗谱,耐蚀性

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Abstract:

利用开路电位和电化学阻抗谱研究09CuPCrNi-A耐大气腐蚀钢和F500L-Z普钢在3.5%NaCl溶液中的腐蚀行为.结果表明,随着浸泡时间的延长,试样的阻抗值先增大后减少,1272h后趋于稳定;Bode图中曲线向低频方向移动,相位角曲线逐渐下降;09CuPCrNi-A耐大气腐蚀钢的耐腐蚀性优于普钢,表面锈层的生成和溶解是动态过程.

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