Characterizing corrosion properties of carbon steel affected by high-power laser cleaning

Shusen Zhuang, Shigenobu Kainuma, Muye Yang, Manabu Haraguchi, Takahiro Asano

研究成果: ジャーナルへの寄稿学術誌査読

12 被引用数 (Scopus)

抄録

A high-power CW laser equipment was used to irradiate bare carbon steel plates to evaluate the effects of laser surface cleaning on the corrosion properties of the base metal. Different laser processing parameters were adopted, representing lower to higher laser ablation effects. The surface oxide content was analyzed using XRD and SEM-EDX, the microstructure was observed under optical microscopy, and the corrosion properties of the specimens were evaluated using electrochemical tests. The results demonstrated that the CW laser-treated steel plates possessed better corrosion resistance than the unirradiated steel plates. Higher laser power density and interaction time result in denser iron oxide formed on the steel surface, which is the main reason for the improved corrosion resistance. Layers with modified microstructures are present in all laser-treated steel plates. The laser ablation effects and gradient microstructures can be well described by the theoretical peak temperature distribution. The laser surface cleaning technique for steel structures is thereby confirmed to have a positive impact on the corrosion properties of the base metal.

本文言語英語
論文番号122085
ジャーナルConstruction and Building Materials
274
DOI
出版ステータス出版済み - 3月 8 2021

!!!All Science Journal Classification (ASJC) codes

  • 土木構造工学
  • 建築および建設
  • 材料科学(全般)

フィンガープリント

「Characterizing corrosion properties of carbon steel affected by high-power laser cleaning」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル