Abstract
The composition, properties, structure and morphology of electrodeposited Zn-Co alloy deposits obtained from an acid sulphate bath containing TEA and thiaminehydrochloride have been investigated. A bath solution containing 11% Co produced an alloy deposit with 0.6% Co indicating preferential deposition of zinc (anomalous process). The percentage of Co in the alloy increased with increase in current density and temperature. Cathodic current efficiency decreased with increase in current density and temperature. Static potentials of Zn-Co alloy were less negative to zinc and more negative to mild steel. Zn-Co alloy forms solid solution structure (-phase). The morphology of the alloy varied with %Co in an alloy deposit.
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