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-09]Electrochemical analysis and SEM-EDX characterization of laser-treated weathering steel plate
〇趙 茂伶1、貝沼 重信1、庄 樹森1、楊 沐野1、原口 学2、浅野 貴弘3(1.九州大学、2.トヨコー(株)、3.西日本高速道路(株))
キーワード：
耐候性鋼、電気化学特性、レーザー素地調整、耐食性、SEM-EDX分析
Weathering steel (WS) structures are expected to have corrosion resistance. High power laser is a promising technique for surface preparation, with advantages of effective cleaning and environment-friendly. This study reports a comparative study on the electrochemical properties of WS pretreated by continuous wave (CW) laser and milling process, the surface chemical composition was identified by using SEM-EDX analysis. The result shows that corrosion resistance of WS improved after laser irradiation due to oxide layer formed on the surface.