Sea-Salt Corrosion Risk Visualization System
- Technological fields
- Telecommunications Network Technologies
- Keyword
- Sea-salt corrosion risk
- Corrosion analysis function
- Efficient maintenance
- Laboratory organization
- NTT Energy and Environment Systems Laboratories
Overview
Our Sea-salt Corrosion Risk Visualization System helps maintainers easily understand
the risks (sea-salt particle quantity, corrosion rate, corrosion quantity, and life
expectancy) that sea-salt corrosion poses to hot-dip-galvanized steel used for sacrificial
protection of aerial telecommunications structures and facilities.
Our system improves the efficiency of maintenance, inspection, and renovation of
structures and facilities and reduces costs by identifying regions that need special seasalt
corrosion countermeasures. The database contains sets of 2-km coastal regions,
and it can be used for efficiently viewing vast regions under different weather conditions.
Features
- Modeling of corrosion analysis functions based on the results of exposure experiments conducted in Japan under different meteorological and geographical conditions.
- Use of robust statistics and nonlinear least squares method providing over 30 % improvement in estimation accuracy compared with the previous method.
- Four different risks modeled (sea-salt particle quantity, corrosion rate, corrosion quantity, and life expectancy).
- Intuitive understanding of risk distributions through geographical visualization.
- Comparisons of life expectancy enabled by changing parameters in relation to the initial film thickness of hot-dip-galvanization and-/or corrosion wastage percentage.
Application scenarios
- Corrosion risks visualized on a map to help:
- select optimal regions for sea-salt-corrosion countermeasures.
- improve efficiency by optimizing maintenance inspections and renovation periods.
