褐煤和泥炭遇水后呈现酸性。研究了褐煤和泥炭中羧基和酚羟基对低合金钢27SiMn的腐蚀作用。配制两种煤的水溶液及饱和水煤样作为电化学腐蚀试验介质，测量了介质的pH值。通过测量极化曲线和红外光谱分析了27SiMn在上述介质中的腐蚀机制。结果表明，褐煤中的羧基和酚羟基加速27SiMn的腐蚀，而泥炭中的羧基和酚羟基却对27SiMn的阳极溶解有抑制作用。
Lignite and peat show acid when mixing with water. The corrosion acton of carboxyl and phenol hydroxy of lignite and peat on low-alloy steel was studied. Prepared solutions and saturated coal samples of lignitd and peat respectively served as the media of corroson experiments, and the pH levels were measured. The corrosion mechanism of 27SiMn low-alloy steel in these media was analyzed through measuring polarization curves and infrared spectrums. The results show that thecarboxyl and phenol hydroxy of lignite accelerate the corrosion of 27SiMn low-alloy steel, while the carboxyl and phenol hydroxy of peat have inhibitory action on anodic dissolution of 27SiMn low-alloy steel because of the existence of oxy functional groups compound with bitumen.
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