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.