This work studies the application of cathodic protection by potentiostatic polarization method with impressed current anodes for preventing corrosion phenomena on ship propeller shafts made of 17-4PH stainless steel, in seawater. Tests were carried out on a full scale propeller system (more than 3 m long) by using one or two activated titanium wires placed lengthwise in the interspace between the shaft and the stern tube. In order to simulate ship navigation and ship berthed in harbour, flowing (40 L/min) and stagnant seawater were respectively considered. Both technical solutions, consisting in the use of one or two titanium anodes, were able to protect the shaft. The results are compared with the data reported in previous works with different types and geometries of the anode.

Cathodic protection of a ship propeller shaft by impressed current anodes / Bellezze, Tiziano; Fratesi, Romeo; Roventi, Gabriella. - In: LA METALLURGIA ITALIANA. - ISSN 0026-0843. - STAMPA. - 106:7-8(2014), pp. 3-7.

Cathodic protection of a ship propeller shaft by impressed current anodes

BELLEZZE, Tiziano
Writing – Review & Editing
;
FRATESI, Romeo
Conceptualization
;
ROVENTI, Gabriella
Writing – Review & Editing
2014-01-01

Abstract

This work studies the application of cathodic protection by potentiostatic polarization method with impressed current anodes for preventing corrosion phenomena on ship propeller shafts made of 17-4PH stainless steel, in seawater. Tests were carried out on a full scale propeller system (more than 3 m long) by using one or two activated titanium wires placed lengthwise in the interspace between the shaft and the stern tube. In order to simulate ship navigation and ship berthed in harbour, flowing (40 L/min) and stagnant seawater were respectively considered. Both technical solutions, consisting in the use of one or two titanium anodes, were able to protect the shaft. The results are compared with the data reported in previous works with different types and geometries of the anode.
2014
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/200902
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