Effects of Surface Oxide Coating on Corrosion Behavior of Ti-1023/LY12 Galvanic Couple

Jun Xiu Shi; Jian Hua Liu

doi:10.4028/www.scientific.net/AMR.668.880

Paper Titles

Dynamic Strain Aging in the Fe-Mn-Cu-C TWIP Steels
p.861

The Formation Mechanism of Equiaxed Crystals in Pure Aluminum Solidification Structure under the Al-Ti-C Master Alloy
p.865

Segregation Patterns and the Phase-Field 3D-Model for Adiabatic Phase Transition in Al-Cu Alloys
p.870

Effects of Electrolyte Parameters on Properties of Ceramic Coatings Formed on Aluminum Alloy 7075 by Plasma Electrolytic Oxidation
p.875

Effects of Surface Oxide Coating on Corrosion Behavior of Ti-1023/LY12 Galvanic Couple
p.880

Investigation of Microstructure and Properties of an Al-Zn-Mg-Cu Alloy
p.885

Influence of Welding Sequence on Residual Stress and Distortion in Rectangular Welding of 6061 Aluminum Alloy
p.890

Orthogonal Experimental Study on the Grinding-Hardened Layer’s Depth and its Uniformity of 45 Steel
p.898

Mechanism Analysis and Dairy Filtration Experimental Research on Porous 1Cr18Ni9 Stainless Steel Components
p.902

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 668Effects of Surface Oxide Coating on Corrosion...

Effects of Surface Oxide Coating on Corrosion Behavior of Ti-1023/LY12 Galvanic Couple

Abstract:

Galvanic corrosion behavior of Ti-1023 titanium alloy coupled to LY12 aluminum alloy was investigated in 3.5% NaCl solution. Particular attention was given to the effect of anodized coatings on corrosion behaviors of Ti-1023/LY12 galvanic couple. Galvanic test was conducted on the following couples: Ti-1023/LY12, Ti-1023/anodized LY12 and anodized Ti-1023/anodized LY12, respectively. Corrosion properties including open circuit potential (Eoc) of each material, galvanic corrosion potential (Eg) and galvanic corrosion current (Ig) of the couples were monitored. Corrosion morphology was observed by optical microscope (OM) and corrosion mechanisms were analyzed and discussed. It was showed that anodized coatings significantly decreased Eg and Īg of the couples and provide effective protection of the anode from suffering corrosion attack. Only slight localized corrosion was detected on anodized LY12 alloy in the two anodized couples and the LY12 in anodized Ti-1023/anodized LY12 couple was found to be least susceptible to galvanic corrosion. The LY12 alloy in the bare couple: Ti-1023/LY12, was found to be highly susceptible to galvanic corrosion and suffered severe uniform and localized corrosion attack

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 668)

Pages:

880-884

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.668.880

Citation:

Cite this paper

Online since:

March 2013

Authors:

Jun Xiu Shi, Jian Hua Liu

Keywords:

Anodized Coating, Galvanic Corrosion, LY12, Ti-1023

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] M.E. El-Dahshan, A.M.S. El Din, H.H. Haggag. Galvanic corrosion in the systems titanium/316L stainless steel/Al brass in Arabian Gulf water., Desalination, Vol. 142(2002), pp.161-169.

DOI: 10.1016/s0011-9164(01)00435-0

Google Scholar

[2] F.E. Varela, Y. Kurata, N. Sanada: Corros. Sci. Vol. 39(1997), p.775.

Google Scholar

[3] R.R. Boyer: Materials Science and Engineering Vol. A213(1996), p.103.

Google Scholar

[4] F. Sittner, B. Enders, H. Jungclas: Surface and Coating Technology Vol. 158-159(2002), p.368.

Google Scholar

[5] A. Afshar, M.R. Vaezi: Surface and Coatings Technology, Vol. 186(2004), p.398.

Google Scholar

[6] H. Konno, K. Utaka, R. Furuichi: Corrosion Science, Vol. 38(1996), p.2247.

Google Scholar