Characterization of Close Cell Aluminum Foams Reinforced by Micro-arc Oxidation
XU Yiku1, YANG Lei1, SONG Xuding2, CHEN Yongnan1, CUAN Luofei 1,ZHANG Chao1, HAO Jianmin 1, LIU Lin3
1 School of Material Science and Engineering, Chang’an University, Xi’an 710064; 2 Key Laboratory of Road Construction Technology and Equipment of Ministry of Education, Chang’an University, Xi’an 710064; 3 State Key Laboratory of Solidification and Processing, Northwestern Polytechnical University, Xi’an 710072
Abstract: As a new type of functional material, aluminum foam had attracted more and more attention because of its special porous structure and high mechanical properties. In this work, close cell aluminum foam was treated by micro-arc oxidation method at different voltage and time. SEM and X ray diffraction were utilized to observe and analysis the surface morphology and the crystalline structure of Al2O3 coating respectively. Corrosion resistance was investigated via an electrochemical workstation and the compressive properties were evaluated by MTS. The results described that the corrosion rate of aluminum foam was decreased after the micro-arc oxidation, and the compressive properties of aluminum foams improved with the increase of oxidation time.
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2018, Vol. 32 
