Method of sacrificial anode transistor-driving in cathodic protection system
Source abstract
Abstract
Abstract A magnesium anode driving system has been proposed. A PNP driving transistor has been used. Electrochemical testing in 3%NaCl, results and comparison of the driving system and classic direct anode to cathode connection are presented. The driving system reduced the protection current and stabilized the working conditions of the anode. Higher anode efficiency was achieved. Overprotection and hydrogen embrittlement threats were prevented and the potential of the cathode met the protection criterion. The expected anode operating time has been prolonged.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Corrosion Behavior and Inhibition · Non-Destructive Testing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. Cathodic protection with sacrificial anodes10.1515/CORRREV.2006.24.3-4.231 ↗
2. Impressed current cathodic protection10.1515/CORRREV.2006.24.1-2.39 ↗
3. Short history of cathodic protection for fixed offshore structures
4. Current density surveys for optimizing offshore anode retrofit design
5. Norway NORSOK Standard M-503:2007. Cathodic protection.
6. Studying the effectiveness of a modernized cathodic protection system for an offshore platform10.1108/00035591111148876 ↗
7. Sacrificial anode cathodic polarization of steel in seawater: Part 2 – design and data analysis10.5006/1.3284858 ↗
8. Influence of hydrogen from cathodic protection on the fracture susceptibility of 25%Cr duplex stainless steel – constant load SENT testing and FE-modeling using hydrogen influenced cohesive zone elements10.1016/j.engfracmech.2008.11.011 ↗
9. Numerical modeling of hydrogen diffusion in structural steels under cathodic overprotection and its effects on fatigue crack propagation10.1002/mawe.201200971 ↗
10. Statistical approach to corrosion under disbonded coating on cathodically protected line pipe steel10.5006/1.3299219 ↗
11. Crevice corrosion behavior of the steel ×70 under cathodic polarization
12. European Standard EN 12473, General principles of cathodic protection in sea water, European Committee for Standardization, 2000.
13. European Standard EN 13173, Cathodic protection for steel offshore floating structures, European Committee for Standardization, 2001.
14. Corrosion behaviour of magnesium sacrificial anodes in tap water
15. Cathodic protection of steel in concrete using magnesium alloy anode10.1016/j.corsci.2008.08.040 ↗
16. Prevention of steel corrosion in concrete exposed to seawater with submerged sacrificial anodes10.1016/S0010-938X(01)00168-8 ↗
17. Cathodic protection technologies for reinforced concrete: introduction and recent developments10.1515/REVCE.2009.25.5-6.339 ↗
18. Assessing and improving current efficiency in magnesium base sacrificial anodes by microstructure control10.1515/CORRREV.1998.16.1-2.95 ↗
19. An electrochemical study of cathodic protection of steel used for marine structures10.1007/BF02705566 ↗
20. A resistor-controlled sacrificial anode for cathodic protection of stainless steel in seawater
21. A. Wills, Potential Limited CP Design for Susceptible Materials, in: Offshore Cathodic Protection Conference London, London, 2013.
22. Methods of evaluation of the corrosion hazard caused by stray currents to metal structures containing aggressive media
23. Potential changes in an electric field and electrolytic corrosion10.1108/00035590310456261 ↗
24. Influence of yttrium addition on properties of Mg-based sacrificial anode10.1016/S1002-0721(10)60354-7 ↗