Abstract

Low hydrogen embrittling (LHE) Cd coatings are used for its inherent sacrificial protection property with high strength steel substrates. Ion Vapor Deposited (IVD) and electroplated Al coatings are potential replacements for Cd coating due to environmental restrictions and work-hazards associated with the Cd plating process. The current study aims to investigate the corrosion behaviour of Al coatings in a three electrode electrochemical cell with a saturated calomel electrode as a reference, by measuring open circuit potentials (OCP) and polarization technique in 3.5% NaCl solution. Corrosion behaviour of Al coatings as a result of two different processes were compared to Cd, which is a base line reference material.

Keywords:
well integrity, flowline corrosion, electroplated al coating, manuscript, texas 77084, publication division, pipeline corrosion, permission, ocp, corrosion resistance
Subjects:
Pipelines, Flowlines and Risers, Materials and corrosion, Well Integrity, Subsurface corrosion (tubing, casing, completion equipment, conductor)
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2015. NACE International
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