Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
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Anti-Icing Characteristics of Aluminum 6061 Alloys According to Surface Nanostructure

알루미늄 6061 합금의 표면 나노 구조물 변화에 따른 방빙 특성 연구

  • Rian, Kim (Department of Advanced Materials Engineering, Dong-eui University) ;
  • Chanyoung, Jeong (Department of Advanced Materials Engineering, Dong-eui University)
  • 김리안 (동의대학교 금속소재공학과) ;
  • 정찬영 (동의대학교 금속소재공학과)
  • Received : 2022.10.20
  • Accepted : 2022.11.12
  • Published : 2022.12.30
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Abstract

Recently, aluminum 6061 instead of copper alloy is used for cooling heat exchangers used in the internal combustion of engines due to its economic feasibility, lightweight, and excellent thermal conductivity. In this study, aluminum 6061 alloy was anodized with oxalic acid, phosphoric acid, or chromic acid as an anodizing electrolyte at the same concentration of 0.3 M. After the third anodization, FDTS, a material with low surface energy, was coated to compare hydrophobic properties and anti-icing characteristics. Aluminum was converted into an anodization film after anodization on the surface, which was confirmed through Energy Dispersive X-ray Spectroscopy (EDS). Pore distance, interpore distance, anodization film thickness, and solid fraction were measured with a Field Emission Scanning Electron Microscope (FESEM). For anti-icing, hydrophobic surfaces were anodized with oxalic acid, phosphoric acid, or chromic acid solution. The sample anodized in oxalic acid had the lowest solid fraction. It had the highest contact angle for water droplets and the lowest contact hysteresis angle. The anti-icing contact angle showed a tendency to decrease for specimens in all solutions.

Keywords

Acknowledgement

본 과제(결과물)는 교육부와 한국연구재단의 재원으로 지원을 받아 수행된 3단계 산학연협력 선도대학 육성사업(LINC 3.0)의 연구결과입니다(202202110001).

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