Abstract
Coatings of Ni-17 at.%W were electroplated on a steel substrate, and their corrosion behavior was investigated between 600 and 800℃ in an Ar-0.2%SO₂ atmosphere. They delayed the corrosion of the steel substrate. They were corroded into an outer NiO-rich layer, and an inner (WO₃+NiO+NiWO₄)-mixed oxide layer. Below these oxide layers, a sulfide layer gradually formed.
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More From: Journal of the Korean institute of surface engineering
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