CORROSION RESISTANCE AND ANTI-CORROSION PERFORMANCE OF OVERLAPPING LAYERS BETWEEN Al-5Mg THERMAL SPRAYED COATING AND HEAVY DUTY PAINT COATING WITH A CROSS-CUT DEFECT

DOI Web Site 1 Citations 3 References
  • MUTO Kazuyoshi
    株式会社富士技建 研究開発室
  • KAINUMA Shigenobu
    九州大学大学院 工学研究院社会基盤部門
  • DU Jinxuan
    陽光城集団 業務部（河南省鄭州市金水区東路 凱琳国際中心7座） （研究当時 九州大学大学院 工学府都市環境システム工学専攻）
  • LIU Shaobo
    九州大学大学院 工学府都市環境システム工学専攻
  • YANG Muye
    九州大学大学院 工学研究院社会基盤部門
  • MIYATA Hirokazu
    西日本高速道路株式会社 中国支社建設・改築事業部構造技術課

Bibliographic Information

Other Title
  • クロスカットを有するAl-5Mg合金溶射と重防食塗装の重ね部の耐食・防食特性に関する基礎的研究

Description

<p> The purpose of this research is to clarify the characteristics of corrosion resistance and anti-corrosion performance of overlapping layers between Al-5Mg thermal sprayed coating and heavy duty paint coating in a high corrosive environment. Accelerated exposure test was carried out on specimens with overlapping layer, and the cross-cut defect were introduced into specimens to form a steel based-exposed portion. In addition, the AC impedance measurements, glossiness tests on the coating surface, and the SEM-EDX elemental analyses on the tested specimens were conducted. The results indicate that the deterioration of the overlapping layer at the steel base-exposed portion occurs earlier than that of the single Al-5Mg thermal sprayed coating. Besides, the generation mechanism of precipitate at the steel base-exposed portion is clarified. Moreover, under the conditions of this combined cyclic corrosion test, the upper layer of heavy duty paint coating still has enough anti-corrosion performance even after the deterioration occurred at the thermal spray coating.</p>

Journal

Citations (1)*help

See more

References(3)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top