Marine Corrosion and Cathodic Protection

2022 ◽  
Author(s):  
Chris Googan
Keyword(s):  
Cathodic Protection ◽  
Marine Corrosion

Corrosion Protection Design of Support Structures for Offshore Wind Turbines with Analysis of Material Properties

2013 ◽  
Vol 703 ◽  
pp. 336-339
Author(s):  
Bi Xiang Mei
Keyword(s):  
Corrosion Protection ◽  
Wind Turbines ◽  
Cathodic Protection ◽  
Material Properties ◽  
Offshore Wind ◽  
Support Structures ◽  
Marine Corrosion ◽  
Offshore Wind Turbines ◽  
Current State

The paper provides a review about the corrosion ,corrosion protection and material properties of support structures for offshore wind turbines. Firstly, the current state of corrosion protection research on offshore wind turbines is discussed. Secondly, types of the marine corrosion environment, corrosivity categories and material properties are summarized in a systematic way.Finally, practical solutions to the corrosion protection of support structures, including cathodic protection ,coatings and silane impregnation, are discussed.

A Study on Cathodic Protection Current Density on Rebar in Onshore Concrete Structure of Persian Gulf

2013 ◽  
Vol 850-851 ◽  
pp. 270-273
Author(s):  
Ya Ping Wang ◽  
Da Jing Fang ◽  
Jun Huang ◽  
Er Bu Shen
Keyword(s):  
Reinforced Concrete ◽  
Current Density ◽  
Cathodic Protection ◽  
Persian Gulf ◽  
Concrete Structure ◽  
Reinforced Concrete Structure ◽  
Marine Corrosion ◽  
Impressed Current ◽  
Corrosion Of Steel ◽  
Control Corrosion

The service life of reinforced concrete structure has been greatly influenced by corrosion of steel, however, impressed current cathodic protection (ICCP) system is able to control corrosion of steel, especially which is corroded by chloride along the coast areas. In this work protection current and related technical parameter in both intake and outfall structure has been investigated in the seawater cooling structure along the coast area of Persian Gulf in Saudi Arabia. The most suitable protection current density provided by ICCP system is 5mA/m2for reinforced concrete structure in the severe marine corrosion area in Middle East.

The study of the electrochemical properties of zinc-rich coating on the base of water sodium silicate

2019 ◽  
Vol 24 (4) ◽  
pp. 51-58
Author(s):  
Le Hong Quan ◽  
Nguyen Van Chi ◽  
Mai Van Minh ◽  
Nong Quoc Quang ◽  
Dong Van Kien
Keyword(s):  
Carbon Steel ◽  
Electrochemical Properties ◽  
Sodium Silicate ◽  
Cathodic Protection ◽  
Electrochemical Impedance ◽  
Steel Substrate ◽  
Electrical Contact ◽  
Electrochemical Impedance Spectra ◽  
Pure Zinc ◽  
Electric Circuits

The study examines the electrochemical properties of a coating based on water sodium silicate and pure zinc dust (ZSC, working title - TTL-VN) using the Electrochemical Impedance Spectra (EIS) with AutoLAB PGSTAT204N. The system consists of three electrodes: Ag/AgCl (SCE) reference electrode in 3 M solution of KCl, auxiliary electrode Pt (8x8 mm) and working electrodes (carbon steel with surface treatment up to Sa 2.5) for determination of corrosion potential (Ecorr) and calculation of equivalent electric circuits used for explanation of impedance measurement results. It was shown that electrochemical method is effective for study of corrosion characteristics of ZSC on steel. We proposed an interpretation of the deterioration over time of the ability of zinc particles in paint to provide cathodic protection for carbon steel. The results show that the value of Ecorr is between -0,9 and -1,1 V / SCE for ten days of diving. This means that there is an electrical contact between the zinc particles, which provides good cathodic protection for the steel substrate and most of the zinc particles were involved in the osmosis process. The good characteristics of the TTL-VN coating during immersion in a 3,5% NaCl solution can also be explained by the preservation of corrosive zinc products in the coating, which allows the creation of random barrier properties.

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