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Electrochemical Behavior of ATsKM Sacrificial Anodes in the Course of Long-Term Operation on Seagoing Ships

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Abstract

We studied the electrochemical properties of a sacrificial-anode alloy based on aluminum and magnesium, into which calcium, along with zinc, was introduced as an antipassivator. For the production of this alloy, we used waste and scrap of aluminum-magnesium alloys. In addition to iron and silicon admixtures, it contains a significant amount of copper. Aluminum-based solid solution is the main phase of the new sacrificial-anode alloy, and its second phase represents Cax Zny Alz intermetallic compound, which is distributed uniformly over the volume. The proposed alloy was used for the corrosion protection of seagoing ships of the Baltic Steamship Line. It was also tested successfully in waters of the Pacific and in corrosive brackish soils of Southern Ukraine and Middle Asia. These sacrificial anodes have an efficiency of ∼85% and a stationary potential in seawater of −1.10 v relative to a copper-sulfate reference electrode.

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REFERENCES

  1. V. A. Lavrenko and V. A. Shvets, “Aluminum sacrificial-anode alloys and prospects of the organization of their production in Ukraine,” in: Abstr. Pap. Int. Conf. “Problems of Corrosion and Anticorrosive Protection of Structural Materials” [in Russian], Lviv (1994), p. 228.

  2. V. A. Shvets, Physicochemical Properties of ATsK Sacrificial-Anode Alloy and Kh70 and St3 Structural Steels [in Russian], Author’s Abstract of Candidate-Degree Thesis, Kiev (1993).

  3. V. A. Lavrenko, V. A. Shvets, O. Z. Galii, and O. A. Frenkel’, “Phase composition and specific features of the electrochemical behavior of ATsKM aluminum sacrificial-anode alloy,” Poroshk. Metall., No. 5/6, 85–89 (1997).

  4. V. A. Lavrenko, R. M. Kas’yan, V. A. Shvets, et al., “Sacrificial-anode aluminum alloy for the protection of metal constructions against corrosion,” in: Abstr. Pap. 4th Inter-Branch Sci. Tech. Conf. “ Protection of Ships against Corrosion and Marine Growth” [in Russian], Leningrad (1989), p. 39.

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Authors and Affiliations

  1. Frantsevich Institute for Problems of Materials Science, Ukrainian Academy of Sciences, Kiev, Ukraine

    V. A. Lavrenko, V. A. Shvets & V. N. Talash

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  1. V. A. Lavrenko
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  2. V. A. Shvets
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  3. V. N. Talash
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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 40, No. 5, pp. 95–98, September–October, 2004.

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Lavrenko, V.A., Shvets, V.A. & Talash, V.N. Electrochemical Behavior of ATsKM Sacrificial Anodes in the Course of Long-Term Operation on Seagoing Ships. Mater Sci 40, 687–691 (2004). https://doi.org/10.1007/s11003-005-0101-2

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  • DOI: https://doi.org/10.1007/s11003-005-0101-2

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