The Corrosion Behavior of Cu-Ni-Si Alloy in Sea Water with Deep-Sea Bacteria

Abstract:

The corrosion behavior of Cu-Ni-Si alloy exposed to a nutrient-rich simulated seawater-based nutrient-rich medium in the presence of a deep-sea bacterial (Erythrobacter pelagi sp.nov) was investigated by metallographic microstructure observation, electrochemical impedance spectroscopy (EIS) measurement. It was demonstrated that the charge transfer resistance (Rct) and the resistance of oxide film (R_f) dramatically increased within 2 days then gradually decrease and becoming stable because of an patchy or blotchy biofilm formed on the surface of the alloy.

• Periodical: Advanced Materials Research (Volume 936)
• Pages: 1102-1105
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.936.1102
• Online since: June 2014
• Authors: Yuan Yuan Shen, Li Zhang*, Li Hua Dong, Tao Liu, Qian Lei, Zhou Li
• Keywords: Corrosion Behavior, Cu-Ni-Si Alloy, EIS, Seawater

References

[1] Božić D, Dimčić O, Dimčić B, Cvijović I, Rajković V, The combination of precipitation and dispersion hardening in powder metallurgy produced Cu-Ti-Si alloy, Materials Characterization 59 (2008) 1122-1126.

DOI: 10.1016/j.matchar.2007.09.005

[2] Lee Jeong-Keun, On the effect of substituting copper powder with cupric salt for the sintering process of W-Cu MIM Parts, Int J Refract Met Hard Mater, 26(2008)290-294.

DOI: 10.1016/j.ijrmhm.2007.06.005

[3] Abdel Yazid Khereddine, Faycal Hadj Larbi, Hiba Azzeddine, Thierry Baudin, Francois Brisset , Anne-Laure Helbert , Marie-Helene Mathon, Megumi Kawasaki, Djamel Bradai, Terence G. Langdon , Microstructures and textures of a Cu-Ni-Si alloy processed by high-pressure torsion, Journal of Alloys and Compounds, 574(2013).

DOI: 10.1016/j.jallcom.2013.05.051

[4] Ryoichi Monzen, Chihiro Watanabe, Microstructure and mechanical properties of Cu–Ni–Si alloys, Materials Science and Engineering A , 483-484(2008) 117-119.

DOI: 10.1016/j.msea.2006.12.163

[5] LEI Qian, LI Zhou, PAN Zhi-yong, WANG Ming-pu, XIAO Zhu, CHEN Chang, Dynamics of phase transformation of Cu-Ni-Si alloy with super-high strength and high conductivity during aging, Transactions of Nonferrous Metals Society of China, (2010).

DOI: 10.1016/s1003-6326(09)60249-1

[6] Q. Lei, Z. Li, T. Xiao, Y. Pang, Z.Q. Xiang , W.T. Qiu, Z. Xiao, A new ultrahigh strength Cu-Ni-Si alloy , Intermetallics, 42(2013) 77-84.

DOI: 10.1016/j.intermet.2013.05.013

[7] M. Metikoš-Hukovic´, R. Babic´, I. škugor , Z. Grubac, Copper-nickel alloys modified with thin surface films: Corrosion behavior in the presence of chloride ions, Corrosion Science 53 (2011) 347-352.

DOI: 10.1016/j.corsci.2010.09.041

[8] Weihua Sun, Honghui Xu, Shuhong Liu, Yong Du, Zhaohui Yuan, Baiyun Huang, Phase equilibria of the Cu-Ni-Si system at 700℃ , Journal of Alloys and Compounds 509 (2011) 9776- 9781.

DOI: 10.1016/j.jallcom.2011.07.106

[9] S.J. Yuan, S.O. Pehkonen, Surface characterization and corrosion behavior of 70/30 Cu-Ni alloy in pristine and sulfide-containing simulated seawater, Corrosion Science 49 (2007) 1276-1304.

DOI: 10.1016/j.corsci.2006.07.003