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Issue 47, 2014
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The electrodeposition of FeCrNi stainless steel: microstructural changes induced by anode reactions

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Abstract

The FeCrNi alloy, whose composition is close to that of stainless steel 304, was prepared by electrodeposition and characterized. Nanocrystalline FeCrNi (nc-FeCrNi) was obtained by employing a double-compartment cell where the anode is separated from the cathode compartment, while amorphous FeCrNi (a-FeCrNi) was deposited in a conventional single electrochemical cell. The carbon content of nc-FeCrNi was found to be significantly lower than that of a-FeCrNi, suggesting that carbon inclusion is responsible for the change in the microstructure. The major source of carbon is associated with the reaction compounds at the anode electrode, presumably decomposed glycine. Crystal structure analysis by XRD and TEM revealed that the as-deposited nc-FeCrNi deposits consist of α-Fe which transforms to γ-Fe upon thermal annealing. Nanoindentation tests showed that nc-FeCrNi exhibits higher hardness than a-FeCrNi, which is consistent with the inverse Hall–Petch behavior.

Graphical abstract: The electrodeposition of FeCrNi stainless steel: microstructural changes induced by anode reactions

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The article was received on 20 Aug 2014, accepted on 21 Oct 2014 and first published on 21 Oct 2014


Article type: Paper
DOI: 10.1039/C4CP03744H
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Phys. Chem. Chem. Phys., 2014,16, 26375-26384

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    The electrodeposition of FeCrNi stainless steel: microstructural changes induced by anode reactions

    M. Hasegawa, S. Yoon, G. Guillonneau, Y. Zhang, C. Frantz, C. Niederberger, A. Weidenkaff, J. Michler and L. Philippe, Phys. Chem. Chem. Phys., 2014, 16, 26375
    DOI: 10.1039/C4CP03744H

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