| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2015: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2014: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
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| Outline of Final Research Achievements |
Effectiveness of fluorescent ferric ion indicator “RhoNox-1” for under film corrosion detection of coated steel panels in water ballast tank is examined. Under film corrosion sensing semi-transparent modified epoxy films which contains RhoNox-1 are prepared. It is found that RhoNox-1 is not responsive to amine-based hardener, and steel's anode reactions in under-film corrosion had been detected clearly by using the developed Fe2+ sensing paint.
An under-film corrosion simulation method for epoxy coated steel panels in water ballast tanks (WBT) based on 2-dimensional cellular automaton has been developed. The change in corroded surface shape of epoxy coated and scribed steel panels made of conventional steel and corrosion resistant steel (CRS) exposed in WBT is simulated, and the effectiveness of the developed simulation method is demonstrated by comparing simulated and measured corroded surface profiles.
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