Prediction of Long-Term Corrosion and Mechanical Behaviors of Steel in Seawater by an Electrochemically Accelerated Aging Technique

Conventional corrosion testing is a time-consuming and expensive process because it requires months or years of exposure for reliable results. Thus, it is necessary to develop a simple, fast, and accurate corrosion testing method for predicting the long-term corrosion behavior of materials. In this...

Full description

Saved in:
Bibliographic Details
Published in:Metals and materials international 2005-06, Vol.11 (3), p.209
Main Authors: Jung Gu Kim, Yong Jae Yu, Jeong Kun Yoo
Format: Article
Language:Korean
Subjects:
artificial seawater
corrosion testing
electrochemically accelerated aging
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Conventional corrosion testing is a time-consuming and expensive process because it requires months or years of exposure for reliable results. Thus, it is necessary to develop a simple, fast, and accurate corrosion testing method for predicting the long-term corrosion behavior of materials. In this article, the corrosion behavior of a steel specimen equivalent to that of the same specimen exposed to seawater for 90 days was reproduced in a short time (24h) using an electrochemically accelerated aging technique. The results indicated that the short-term accelerated aging test yields good qualitative and quantitative agreement with a long-term immersion test in terms of weight loss, corrosion product, and type of corrosion. Furthermore, based on the experimental results, it was possible to predict the long-term mechanical behavior of the corroded structure. The tensile and yield strengths of structural steel submerged in seawater for 60 years were decreased by 1/3 and 1/4 of the initial strengths, respectively.
ISSN:1598-9623
2005-4149