令和2年度土木学会全国大会第75回年次学術講演会
2020年9月9日〜9月11日オンライン開催
令和2年度土木学会全国大会第75回年次学術講演会
2020年9月9日〜9月11日オンライン開催
[I-29]Deterioration mechanism of hot-dip Al coating in a coastal-atmospheric environment
〇Muye Yang1、Shigenobu Kainuma1、Yang Gao1、Mikio Hashimoto2(1.Kyushu University、2.Shinko Alumer Industries Co., Ltd.)
The object of this study is a hot-dip Al coated steel bridge, which serviced over 25 years in a coastal atmospheric environment. In several structure components, the outmost Al layer has started to be dissolved. Three types of deteriorated hot-dip Al coating were discussed to clarify the corrosion progress and deterioration mechanism, according to corresponding SEM-EDS and EPMA element analysis.