换流站阀冷系统中丙二醇防冻液的腐蚀特性研究
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Corrosion Characteristics of Propylene Glycol Antifreeze in Valve Cooling System of Converter Station
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图4. 6063铝合金在乙二醇和丙二醇溶液中的极化曲线

Fig.4. Polarization curves of 6063 Al-based alloy in ethy-lene glycol (a) and propylene glycol (b) solutions