Corrosion of Steel Shipwrecks in the Marine Environment: USS Arizona—Part 2

Authors

Donald L. Johnson, National Park ServiceFollow
Brent M. Wilson, AmstedFollow
James D. Carr, University of Nebraska - LincolnFollow
Matthew A. Russell, National Park Service Submerged Resources Center
Larry E. Murphy, National Park Service Submerged Resources Center
David L. Conlin, National Park Service Submerged Resources Center

Document Type

Article

Date of this Version

2010

Citation

Materials Performance 45(11), pp. 54-57

Comments

This document is a U.S. government work and is not subject to copyright in the United States.

Abstract

This article is a continuation of Part 1 (October 2006 MP) on the USS Arizona hull. It discusses additional methods being investigated for use in determining corrosion rates with a minimal impact on the existing structure. Marine biofouling (concretion) has accumulated on the hull. Concretion samples have been studied using x-ray diffraction, environmental electron microscopy, and corrosion potential (E_corr) to characterize the relationship between concretion and the steel substrate. The data presented in this study confirm the viability of concretion analysis as a minimum-impact procedure to estimate the corrosion rate of mild steel in seawater.