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[I-22] Galvanic corrosion behavior between hot-dip 55Al-Zn and Al coatings in the atmospheric environment

〇高 揚¹、楊 沐野¹、貝沼 重信¹、石原 修二²、橋本 幹雄³ (1.九州大学大学院、2.株式会社 三井E&Sマシナリー、3.新興アルマー工業株式会社)

キーワード：接触腐食、めっき、接合部、電気化学

Atmosphere corrosion of steel structure is one of the most critical issues. Hot-dip coatings are of great significance in protecting steel to improve the durability of the structure and reduce their cast. Hot-dip coatings are usually used for relatively small size steel members such as bolts, etc., and the majority of the tiny parts can be coated. In this study, the galvanic corrosion behavior of 55Al-Zn and Al coatings in an atmospheric environment was investigated according to the exposure test and electrochemical test.