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Use of sodium salt electrolysis in the process of continuous modification of eutectic EN AC-AlSi 1 2 alloy

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Abstract

This paper presents test results concerning the selection of sodium salt for the technology of continuous modification of the EN AC-AlSi12 alloy, which is based on electrolysis of sodium salts, occurring directly in a crucible with liquid alloy. Sodium ions formed as a result of the sodium salt dissociation and the electrolysis are ‘transferred’ through walls of the retort made of solid electrolyte. Upon contact with the liquid alloy, which functions as a cathode, sodium ions are transformed into the atomic state, modifying the alloy. As a measure of the alloy modification extent, the obtained increase of the tensile strength R m and change of metallographic structure are used, confirming obtained modification effect of the investigated alloy.

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Acknowledgement

The present work was performed within framework of Research Project no. 3 T08B 063 29 financed by the State Committee for Scientific Research (MNiSW).

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Authors and Affiliations

  1. Faculty of Chipless Forming Technology, University of Bielsko-Biała, ul. Willowa 2, 43-309, Bielsko-Biała, Poland

    J PEZDA

  2. Foundry Engineering Institute, Zakopiańska 73, 30-418, Kraków, Poland

    A BIAŁOBRZESKI

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Correspondence to J PEZDA.

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PEZDA, J., BIAŁOBRZESKI, A. Use of sodium salt electrolysis in the process of continuous modification of eutectic EN AC-AlSi 1 2 alloy. Bull Mater Sci 38, 373–377 (2015). https://doi.org/10.1007/s12034-015-0875-2

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  • DOI: https://doi.org/10.1007/s12034-015-0875-2

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