应用交流阻抗和极化曲线法研究磷脱氧铜和ＳＷ－２０６不锈钢在醋酸介质中腐蚀行为及过程的控制特征，比较介质温度、浓度及溶解氧对这两种金属在醋酸中腐蚀行为的影响，分析其原因所在，为石油化工中的醋酸设备的正确选材及有效防腐提供理论和实验依据．In order to provide a theoretic and experimental consideration for the material selection and anit-corrosion in the petrochemical industries the corrosion behavior of coalesced copper and sw-206 stainless steel in the acetic acid solution was studied by electrochemical impedance spectroscopy and polarization techniques. The effects of the temperature,acetic acid concentration and solubilized oxygen in the acetic acid solution on the corrosion process of this two metals were analyzed. It was found that these effects obviously accelerate corrosion process for the coalesced copper,but no apparent influnce for the sw-206 stainless steel.In the the acetic acid solution,containing water and oxygen were beneficial for stabilizing the passivation state of sw-206 stainless steel,and however were detrimental for the corrosion resistance of coalesced copper.作者联系地址：厦门大学化学系，上海石化股份公司机械研究所Author's Address: Department of Chemistry Xiamen University,Xiamen 361005Sun Zhanmei;Wu Xueqin;Wang BiaoMechanics Institute,Shanghai Petrochemistry Corporation,Shanghai 20054
