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电化学(中英文) ›› 2006, Vol. 12 ›› Issue (2): 195-198. 

• 研究论文 • 上一篇    下一篇

Q235钢焊缝在亚硫酸铵介质中的耐蚀性研究

雷阿利;郭巧琴;冯拉俊;   

  1. 西安理工大学材料科学与工程学院,西安理工大学材料科学与工程学院,西安理工大学材料科学与工程学院 陕西西安710048,陕西西安710048,陕西西安710048
  • 收稿日期:2006-05-28 修回日期:2006-05-28 出版日期:2006-05-28 发布日期:2006-05-28

Corrosion Behavior of the Welding Seam of the Q235 Steel Jointed by J420 Electrode in Ammonium Sulfite Solution

LEi A-Li~*,GUO Qiao-qin,FENG La-Jun   

  1. (School of Materials Science and Engineering,Xi'an University of Technology,Xi'an 710048,Shanxi,China
  • Received:2006-05-28 Revised:2006-05-28 Published:2006-05-28 Online:2006-05-28

摘要: 研究以J420焊条焊接Q235钢,其焊缝于亚硫酸铵介质中的腐蚀行为.电化学方法和金相分析表明,Q235钢用J420焊条焊接后,焊缝的组织特点决定了它的耐蚀性低于母材.提高温度,增加亚硫酸铵浓度,均会促使焊缝的腐蚀速率加快.

关键词: 焊缝, 亚硫酸铵, 电化学腐蚀

Abstract: The corrosion behavior of welding seam of the Q235 steel jointed by J420 electrode in ammonium sulfite solution was researched.The results of electrochemical method of welding seam and metallurgical structure analysis showed that the poor corrosion resisting property was determined by its structure after the Q235 steel was jointed by J420 electrode.The sulfite corrosion rate was accelerated by increasing the temperature and concentration of ammorium.

Key words: Welding seam, Ammonium sulfite, Electrochemical corrosion

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