Development of a Predictive Corrosion Model Using Locality-Specific Corrosion Indices
ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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This Office of the Secretary of Defense Corrosion Prevention and Control Program project developed a statistical model of atmospheric corrosion of selected metals. This model relates measured corrosion rates at test sites mainly military bases worldwide to critical environmental variables. These variables are 1 a measure of atmospheric chlorides, 2 rainfall, and 3 relative humidity values at several levels. The measured corrosion rates obtained at test sites over the period of CY05 - CY07. Additionally this database includes much more data obtained from similar DoD monitoring activities over nearly the last decade. This serves to enhance the statistical relevance of the developed model. The model includes algorithms for several metals that have been routinely used in the monitoring work. These include copper, 6061 T6 aluminum, 7075 T6 aluminum, and a low carbon 1010 steel.
- Physical Chemistry
- Metallurgy and Metallography