Abstract
AbstractA wrought iron anchor and a cast iron carronade from the wreck of HMS Sirius (1790) received In situ electrolysis treatment using sacrificial anodes in the shallow waters off Norfolk Island in the South Pacific Ocean. This pre-treatment stabilizes the artifacts and ensures that they can be safely recovered and transported. Monitoring on the seabed and in the laboratory showed that approximately 80% of the chlorides had been removed from the carronade before excavation. The cathodic pre-treatment results in a significant improvement in the quality of the surface of the metals. It is possible to maintain artifacts on the seabed by continued use of sacrificial anodes.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
