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- Title
CORROSIVE BEHAVIOUR OF CARBON STEEL IN SEA WATER ENVIRONMENT.
- Authors
MIHAELA, BARHALESCU; CONSTANTIN, DUMITRACHE
- Abstract
Aluminum and Nickel alloys are frequently used in seawater systems for the manufacturing of equipment and mechanical parts such as heat exchanges, pumps, valves, pipes, fasteners. Depending on the application and the requirements regarding the mechanical characteristics, Ni and Al alloys can be used. Nevertheless, they suffer from certain forms of corrosion such as localized corrosion, crevice corrosion in valves or flanges assemblies [7]. In this paper we present the superficial layers deposited process based on the electrical discharge technology in impulses and their behavior in sea water. These layers are tested for corrosion, using the gravimetrical method and electrochemical corrosion [3]. The samples used in the experiments are non-alloy quality steels C 45, on their surface being deposited superficial layers using aluminum and nickel electrodes. The initial samples and the samples with deposited layers were immersed in sea water (taken from the Romanian seaside, at Mangalia) and maintained a period of 285 days. The fine determining of the topography surfaces exposed to the action of the corrosive environment was accomplished using an atomic force microscope (AFM).
- Publication
Annals (Constanţa Maritime University), 2015, Vol 16, Issue 23, p43
- ISSN
2067-0427
- Publication type
Academic Journal