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电化学(中英文) ›› 1996, Vol. 2 ›› Issue (3): 332-337. 

• 研究论文 • 上一篇    下一篇

磷脱氧铜和不锈钢在醋酸介质中腐蚀行为的电化学研究

胡荣宗,林昌建,谭建光,孙占梅,吴雪芹,王魁   

  1. 厦门大学化学系,上海石化股份公司机械研究所
  • 收稿日期:1996-08-28 修回日期:1996-08-28 出版日期:1996-08-28 发布日期:1996-08-28

Electrochemical Study of the Corrosion Behavior of Coalesced Copper and SW-206 Stainless Steel in the Acetic-Acid Solution

Hu Rongzong;Lin Changjian;Tan Jianguang   

  1. (Department of Chemistry Xiamen University,Xiamen 361005)Sun Zhanmei;Wu Xueqin;Wang Biao(Mechanics Institute,Shanghai Petrochemistry Corporation,Shanghai 200540
  • Received:1996-08-28 Revised:1996-08-28 Published:1996-08-28 Online:1996-08-28

摘要: 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.

关键词: 腐蚀, 交流阻抗, 极化曲线, 铜, 不锈钢, 醋酸介质

Abstract: 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.

Key words: Corrosion, a.c.impedance, Polarization, Copper, Stainless steel, Acetic acid

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