3.5% NaCl에서 Arc Thermal and Plasma Arc Spray 공법이 적용된 Al- Zn 코팅 강재의 내 식 성능 평가에 관한 연구

잔낫; 이한승

한국건축시공학회 한국건축시공학회 학술발표대회 논문집 3.5% NaCl에서 Arc Thermal and Plasma Arc Spray 공법이 적용된 Al- Zn 코팅 강재의 내 식 성능 평가에 관한 연구

3.5% NaCl에서 Arc Thermal and Plasma Arc Spray 공법이 적용된 Al- Zn 코팅 강재의 내 식 성능 평가에 관한 연구

Performance of Al-Zn Coating by Arc Thermal and Plasma arc Thermal Spray Processes in 3.5% NaCl Solution

잔낫 ( Adnin Raihana Jannat ) , 이한승 ( Lee¸ Han-seung )

한국건축시공학회 2021.11

한국건축시공학회 학술발표대회 논문집 21권 2호 17-18(2pages)

UCI I410-ECN-0102-2022-500-000879293

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초록

In the present study, Al-Zn coating was deposited by Arc thermal (AT) and plasma arc thermal (PAT) spray processes, and their corrosion characteristics were studied in 3.5% NaCl through electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM) and mechanical tests. The bond adhesion result showed that plasma arc sprayed coating had a higher value attributed to compact, dense, and less porous coating compared to arc thermal spray coating which contains defects/pores and uneven morphology as revealed by scanning electron microscope analysis. Electrochemical results revealed that the plasma arc sprayed coating had a high polarization resistance at early stage of immersion, suggesting its excellent corrosion protection performance.

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