利用Fourier变换红外(FTIR)光谱、XRD和SEM技术以及恒电流测试技术,研究了表面沉积NaCl和NaHSO3的低合金钢和碳钢在干湿交替条件下的腐蚀行为.结果表明,低合金钢和碳钢的腐蚀速率都随着实验周期的延长而减小,且其失重量基本相同,低合金钢并未表现出比碳钢优越的耐蚀性.主要腐蚀产物为α-FeOOH,Fe3O4,γ-FeOOH和硫酸盐,此外还存在大量的δ-FeOOH,导致腐蚀速率降低.
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