Effects of Trace Cl-,Cu2+ and Fe3+ Ions on the Corrosion Behaviour of AA6063 in Ethylene Glycol and Water Solutions

• 作者: Lei Fan Juantao Zhang Hao Wang Yang Liu Yu Cui Cheng Wang Rui Liu Dongxiao Xu
• 来源期刊: 金属学报（英文版）
• 年，卷（期）: 2022,（2）
• 页码范围: 285-303
• 页数: 19页
• 语种: 英文

摘要

The effects of Cl-,Cu2+ and Fe3+ ions and their combinations on the corrosion behaviour of aluminium alloy 6063 (AA6063)in ethylene glycol and water solutions at 50 ℃ were investigated by electrochemical and immersion methods.Cl-resulted in pitting corrosion of the alloy.In the Cl--free solutions,Fe3+ was prone to accelerate uniform corrosion,while Cu2+ tended to accelerate pitting corrosion.Severe pitting corrosion of AA6063 was observed in the cases of Cl-combined with Cu2+or Fe3+,especially in the case of Cl-combined with Cu2+ and Fe3+ ions.