알루미늄 합금 양극산화피막의 표면경도 측정법
Novel methods for measuring the surface hardness of anodic oxide films on aluminum alloy
1
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
In this study, two novel methods to measure the surface hardness of anodic oxide films on aluminum alloys are reported. The first method is to impregnate oil-based ink into pores in the anodic oxide film and then to clean the ink on the surface using ethanol, resulting in an impregnation of inks only inside of the pores in anodic oxide film. The second method is to coat the anodic oxide film surface with thin Au layer less than 0.1 ㎛. Both the ink-impregnating method and Au-coating method provided clear indentation marks on the anodic oxide film surface when it was indented using a pyramidal-diamond penetrator. Thus, Vickers hardness of anodic oxide films on aluminium alloy could be measured successfully and precisely from the anodic film surface. In addition, advantages and disadvantages of the ink-impregnating method and Au-coating method for the measurement of surface hardness of anodic oxide films are discussed.
Abstract
In this study, two novel methods to measure the surface hardness of anodic oxide films on aluminum alloys are reported. The first method is to impregnate oil-based ink into pores in the anodic oxide film and then to clean the ink on the surface using ethanol, resulting in an impregnation of inks only inside of the pores in anodic oxide film. The second method is to coat the anodic oxide film surface with thin Au layer less than 0.1 ㎛. Both the ink-impregnating method and Au-coating method provided clear indentation marks on the anodic oxide film surface when it was indented using a pyramidal-diamond penetrator. Thus, Vickers hardness of anodic oxide films on aluminium alloy could be measured successfully and precisely from the anodic film surface. In addition, advantages and disadvantages of the ink-impregnating method and Au-coating method for the measurement of surface hardness of anodic oxide films are discussed.
참고문헌 (10)
- 정용수, "실용표면처리기술시리즈 제 5권 양극산화", pp.3~ (2014), 화신문화(주)
- 문상혁, "6xxx계 알루미늄 합금의 경질 아노다이징 피막 형성 특성 연구", 한국표면공학회지, 52(4), pp.203~210 (2019), 한국표면공학회[DOI]
- 문성모, "금속의 양극산화처리 기술", 한국표면공학회지, 51(1), pp.1~11 (2018), 한국표면공학회[DOI]
- 문성모, "황산 용액에서 Al6061 합금의 아노다이징 피막 형성거동", 한국표면공학회지, 51(6), pp.393~399 (2018), 한국표면공학회[DOI]
- 문성모, "황산용액에서 Al7075 합금 표면의 양극산화피막 형성거동", 한국표면공학회지, 47(4), pp.155~161 (2014), 한국표면공학회[DOI]
- M. Aggerbeck, "Appearance of anodised aluminium:Effect of alloy composition and prior surface finish", Surf. Coat. Technol, 254, pp.28~41 (2014)
- S. -M. Moon, "A review of Al anodizing", J. Corros. Sci. Soc. of Korea, 26, pp.498~508 (1997)
- Pei Zhang, "Effects of pore parameters on performance of anodic film on 2024 aluminum alloy", Materials Chemistry and Physics, 231, pp.9~20 (2019)
- Chulho Lee, "Self-sealing anodization approach to enhance micro-Vickers hardness and corrosion protection of a die cast Al alloy", Journal of Physics and Chemistry of Solids, 103, pp.87~94 (2017)
- Tatsuya Kikuchi, "Advanced hard anodic alumina coatings via etidronic acid anodizing", Surface and Coatings Technology, 326, pp.72~78 (2017)