Corrosion behavior of B30 Cu-Ni alloy and anti-corrosion coating in marine environment

摘要：

The corrosion behavior of B30 Cu-Ni alloy in a sterile seawater and a SRB solution was investigated.The results show that the corrosion potential of specimen in the SRB solution is much lower than that in the sterile seawater.The polarization resistance of specimen in the SRB solution decreases quickly after a period immersion and becomes much lower than that in the sterile seawater.It is concluded that the SRB accelerates the corrosion process of B30 Cu-Ni alloy greatly.An anti-corrosion electroless Ni-P coating was produced and applied to the alloy.The results show that specimens coated with Ni-P plating exhibit favorable corrosion resistance property in SRB solution.Severe pitting corrosion appears on the uncoated specimens in the SRB solution when the coated specimens are still in good condition.The anti-corrosion mechanism of Ni-P plating was analyzed.It is concluded that coating the B30 Cu-Ni alloy with electroless Ni-P plating is an effective technique against the attack of SRB in marine environment.

关键词： Cu-Ni alloy microbiological influenced corrosion(MIC) sulfate-reducing bacteria (SRB) anti-corrosion coating corrosion behavior

作者: LI Qing-fen LI Chun-hui XU Li-kun LIU Guang-zhou

作者单位: College of Mechanical and Electrical Engineering,Harbin Engineering University,Harbin 150001,China State Key Laboratory for Marine Corrosion and Protection,Qingdao 266071,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）