Verification of passivity condition of carbon steel under cathodic protection through in-situ spectroscopy
Source abstract
Abstract
Cathodic protection (CP) is a consolidated technique involving the circulation of a cathodic current (i prot) from an anode to a structure. This causes the electrode alkalisation depending on i prot and on the kinetics of the diffusive motion of ions, influencing the surface state of the metal. In this paper, the surface condition of carbon steel under CP has been studied through in-situ Raman spectroscopy and atomic force microscopy (AFM), combined with electrochemical impedance spectroscopy (EIS), for a protection potential (E prot) of − 1.1 V/CSE (Cu/CuSO 4). Results show that depending on alkalisation, Fe 3O 4 converts to other ferric species like γ-Fe 2O 3 and α-FeOOH.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Concrete Corrosion and Durability · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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