열처리 조건에 따른 Al-Si-Mg계 합금의 표면 젖음성 영향
Effect of Heat Treatment on Surface Wettability of Al-Si-Mg Alloy
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The present study investigated the effect of heat treatment process on the surface wettability of an Al-Si-Mg alloy. After solution-treated at 525 oc and aged at 160 oc, the alloy showed high hardness due to the formation of precipitates. In addition, surface wettability was improved in such a way that the contact angle of distilled water droplet on the flat surface decreased to 37.6 ~ 42.1 o after the heat treatment. The surface energy predicted by Owens-Wendt equation also confirmed the increase of surface energy after the heat-treatment. However, when the surface roughness increased, the positive effect of the heat treatment on wettability diminished due to the geometrical factors of the rough surface.
Abstract
The present study investigated the effect of heat treatment process on the surface wettability of an Al-Si-Mg alloy. After solution-treated at 525 oc and aged at 160 oc, the alloy showed high hardness due to the formation of precipitates. In addition, surface wettability was improved in such a way that the contact angle of distilled water droplet on the flat surface decreased to 37.6 ~ 42.1 o after the heat treatment. The surface energy predicted by Owens-Wendt equation also confirmed the increase of surface energy after the heat-treatment. However, when the surface roughness increased, the positive effect of the heat treatment on wettability diminished due to the geometrical factors of the rough surface.
참고문헌 (19)
- W.S. Miller, "Recent development in aluminium alloys for the automotive industry", Mater. Sci. Eng. A, 280, pp.37~49 (2000)
- J. Hirsch, "Superior light metals by texture engineering: Optimized aluminum and magnesium alloys for automotive applications", Acta Mater, 61, pp.818~843 (2013)
- J.R. Davis, "ASM Specialty Handbook: Aluminum and Aluminum Alloys" (1993), ASM International
- K.L. Mittal, "Advances in Contact Angle, Wettability and Adhesion" (2013), John Wiley & Sons
- 유동인, "마이크로 기둥 구조가 있는 친수성", 소수성 표면에서의 겉보기 접촉 각에 대한 연구, 2014, pp.31(2), 171~178[DOI]
- 변은연, "알루미늄의 발수 표면처리 기술 개발", 한국표면공학회지, 45(4), pp.151~154 (2012), 한국표면공학회[DOI]
- S. Nickelsen, "Modeling and experimental study of oil", water contact angle on biomimetic micro-parallelpatterned self-cleaning surfaces of selected alloys used in water industry, 2015, pp.353, 781~787
- M. Kamei, "Hydrophobic drawings on hydrophilic surfaces of single crystalline titanium dioxide: Surface wettability control by mechanochemical treatment", Surf. Sci, 463, pp.609~612 (2000)
- H. -Y. Kim, "Effects of hydrophilic surface treatment on evaporation heat transfer at the outside wall of horizontal tubes", 23, pp.449~458 (2003)
- M. Yue, "Switchable hydrophobic", hydrophilic surface of electrospun poly (L-lactide) membranes obtained by CF4microwave plasma treatment, 2015, pp.327, 93~99
- R.K. Roy, "Surface energy of the plasma treated Si incorporated diamond-like carbon films", Diam. Relat. Mater, 16, pp.1732~1738 (2007)
- M. Zamni, "Al-Si Cast Alloys-Microstructure and Mechanical Properties at Ambient and Elevated Temperature", pp.2015
- S. Suri, "Microstructure, Wetting Angle and Corrosion of Aluminum-silicon", pp.2016
- F. De, "Superficial Modifications in TiO 2 and Al 2 O 3 Ceramics", Mater. Res, 6, pp.353~367 (2003)
- S.H. Bang, , Semicond. Sci. Technol, 24, pp.025008~ (2009)
- R.N. Wenzel, "Resistance of solid surfaces to wetting by water", Ind. Eng. Chem, 28, pp.988~994 (1936)
- R. Finn, "Capillary surface interfaces", Not. AMS, 46, pp.770~781 (1999)
- D.K. Owens, "Estimation of the Surface Free Energy of Polymers", J. Appl. Polym. Sci, 13, pp.1741~1747 (1969)
- Y.C. Hong, "Surface transformation of carbon nanotube powder into super-hydrophobic and measurement of wettability", Chem. Phys. Lett, 427, pp.390~393 (2006)