Zn's role in dissolution of al sacrificial anodes

Sun Hejian; Huo Shizhong

doi:10.1007/BF02849681

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Zn's role in dissolution of al sacrificial anodes

Updated：2023-05-16

- Zn's role in dissolution of al sacrificial anodes
- Journal of Oceanology and Limnology Vol. 8, Issue 4, Pages: 354-362(1990)
- Affiliations：
  
  Dalian University of Technology
- Author bio：
- Funds：
- DOI：10.1007/BF02849681
  CLC：
- Published：1990
- Accepted：
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Hejian, S., Shizhong, H. Zn's role in dissolution of al sacrificial anodes., Chin. J. Ocean. Limnol. 8, 354–362 (1990). https://doi.org/10.1007/BF02849681
DOI：

Hejian, S., Shizhong, H. Zn's role in dissolution of al sacrificial anodes., Chin. J. Ocean. Limnol. 8, 354–362 (1990). https://doi.org/10.1007/BF02849681 DOI：

摘要

Abstract

The role of alloying elements in the dissolution of aluminium sacrificial anodes was investigated. The effect of indium on the electrochemical performance of anode and the relationship between indium and impurities

such as silicon and iron

were studied. The distribution of indium in aluminium alloy was detected. The electrochemical behaviour of In-implanted aluminium alloy was also studied. The experimental results indicate that indium activates the surface of aluminium alloy and improves the electrochemical performance of alloy containing more amounts of impurity. Indium combines with silicon and iron. More satisfactory properties were obtained when the alloy's proportion of content of In to that of (Si+Fe) is about 1∶(8∼10). The electrochemical properties of Al alloy

especially the surface activity of the anode were improved by ion implantation. Indium segregates in the alloy. The amount of Si and Fe in the In-rich segregated phase is richer than that in the matrix. It is proposed that the In-rich segregated phase particles activate the surface and promote the dissolution process of the aluminium sacrificial anode.

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references

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