Shipboard cathodic protection needs, particularly in spaces which are relatively inaccessible and contain mixed metals some of which may be susceptible to hydrogen embrittlement, present challenges to conventional impressed current cathodic protection (ICCP) and high-driving potential zinc or aluminum sacrificial anode systems. Laboratory and long-term field tests of low carbon steel anodes (LCS) on mixed metal (HY 80/100 steel, UNS N06625, and UNS N06600) panels were conducted on surface area ratio scale models to assess their applicability in a full-scale shipboard cathodic protection (CP) installation.
Key Words: low driving-potential, sacrificial anode, cathodic protection