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The Design of a Monitoring Program for Iron Alloys on Underwater Historic Shipwrecks in Fathom Five National Marine Park, Ontario, Canada

Published online by Cambridge University Press:  26 February 2011

John Stewart ,
Lome D. Murdock  and
Nancy Binnie
John Stewart
Affiliation:
Parks Canada, Canadian Heritage, 1800 Walkley Rd., Ottawa, Ont. Canada K1A 0M5, john_stewart@pch.gc.ca
Lome D. Murdock
Affiliation:
Parks Canada, Canadian Heritage, 1800 Walkley Rd., Ottawa, Ont. Canada K1A 0M5, john_stewart@pch.gc.ca
Nancy Binnie
Affiliation:
Canadian Conservation Institute, Canadian Heritage, 1060 Innes Rd., Ottawa, Ont. Canada, K1A 0M5, nancy_binnie@pch.gc.ca
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Abstract

In order to design a scheme to monitor the state of preservation of iron alloys that are found on historic shipwrecks sunk in fresh water, it was first necessary to identify the predominant form of corrosion found on the wrecks. This was done by visual observation, in situ surface pH measurements, and X-ray powder diffraction of the corrosion layers. Once the form of corrosion was identified as pitting corrosion, a monitoring scheme based on photographic recording of the rust-red tubercles was designed. This scheme is simple and nondestructive, both necessary characteristics for the monitoring of submerged historic resources.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 462: Symposium DD – Materials Issues in Art and Archaeology V , 1996 , 359
Copyright
Copyright © Materials Research Society 1997

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References

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