Composite plasma electrolytic oxidation to improve the thermal radiation performance and corrosion resistance on an Al substrate
作者： Donghyun Kim , Dahye Sung , Junghoon Lee , Yonghwan Kim , Wonsub Chung
DOI: 10.1016/J.APSUSC.2015.10.003
关键词:
摘要: Abstract A composite plasma electrolytic oxidation (PEO) was performed for enhancing the thermal radiation performance and corrosion resistance on an Al alloy by dispersing cupric oxide (CuO) particles in a conventional PEO electrolyte. Cu-based oxides (CuO Cu 2 O) formed increased emissivity of substrate to 0.892, made surface being dark color, similar black body, i.e., ideal radiator. In addition, analyzed using potentio-dynamic polarization electrochemical impedance spectroscopy tests 3.5 wt.% NaCl aqueous solution. An optimum condition 10 ampere per square decimeter (ASD) current density 30 min processing time produced appropriate morphologies coating thicknesses, as well dense Cu- Al-based that constituted layers.
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Russell Huffer, Low emissivity, low shading coefficient low reflectance window ,(1987)
M. Sheikhi, F. Malek Ghaini, H. Assadi, Prediction of solidification cracking in pulsed laser welding of 2024 aluminum alloy Acta Materialia. ,vol. 82, pp. 491- 502 ,(2015) , 10.1016/J.ACTAMAT.2014.09.002
O. Lunder, B. Olsen, K. Nisancioglu, Pre-treatment of AA6060 aluminium alloy for adhesive bonding International Journal of Adhesion and Adhesives. ,vol. 22, pp. 143- 150 ,(2002) , 10.1016/S0143-7496(01)00049-5
Yonghwan Kim, Donghyun Kim, Hyun Park, Uoochang Chung, Wonsub Chung, Effect of current step-down on the growth and hardness of PEO coatings on Al6061 alloy Procedia Engineering. ,vol. 10, pp. 2809- 2814 ,(2011) , 10.1016/J.PROENG.2011.04.467
Junghoon Lee, Yonghwan Kim, Wonsub Chung, Effect of Ar bubbling during plasma electrolytic oxidation of AZ31B magnesium alloy in silicate electrolyte Applied Surface Science. ,vol. 259, pp. 454- 459 ,(2012) , 10.1016/J.APSUSC.2012.07.065
A.D.B. Gingell, J.E. King, The effect of frequency and microstructure on corrosion fatigue crack propagation in high strength aluminium alloys Acta Materialia. ,vol. 45, pp. 3855- 3870 ,(1997) , 10.1016/S1359-6454(97)00033-5
T. Tiihonen, Stefan-Boltzmann Radiation on Non-convex Surfaces Mathematical Methods in the Applied Sciences. ,vol. 20, pp. 47- 57 ,(1997) , 10.1002/(SICI)1099-1476(19970110)20:1<47::AID-MMA847>3.0.CO;2-B
D.R. Mumm, A.G. Evans, I.T. Spitsberg, Characterization of a cyclic displacement instability for a thermally grown oxide in a thermal barrier system Acta Materialia. ,vol. 49, pp. 2329- 2340 ,(2001) , 10.1016/S1359-6454(01)00071-4
X Nie, E.I Meletis, J.C Jiang, A Leyland, A.L Yerokhin, A Matthews, Abrasive wear/corrosion properties and TEM analysis of Al2O3 coatings fabricated using plasma electrolysis Surface & Coatings Technology. ,vol. 149, pp. 245- 251 ,(2002) , 10.1016/S0257-8972(01)01453-0
J. Mi, P.S. Grant, Modelling the shape and thermal dynamics of Ni superalloy rings during spray forming. Part 2: Thermal modelling – Heat flow and solidification Acta Materialia. ,vol. 56, pp. 1597- 1608 ,(2008) , 10.1016/J.ACTAMAT.2007.12.022