期刊
JOURNAL OF MAGNESIUM AND ALLOYS
卷 5, 期 4, 页码 404-411出版社
KEAI PUBLISHING LTD
DOI: 10.1016/j.jma.2017.09.003
关键词
Pure magnesium; Anode; Electrochemical behavior
资金
- National Key Research and Development Program of China [2016YFB0101600]
- Fundamental Research Funds for the Central Universities of Chongqing University [106112016CDJXZ138811, 106112017CDJPT280001]
Three kinds of pure magnesium anode materials with different grain sizes were prepared by extrusion at different temperatures. The grain size of each sample was calculated, then the effect of grain size on the electrochemical properties of pure magnesium anode was investigated by chemical immersion hydrogen test, potentiodynamic polarization scanning, constant current discharge and electrochemical impedance spectroscopy. As the extrusion temperature increases from 180 degrees C to 250 degrees C, the average grain size of pure magnesium increases from 20 mu m to 30 mu m, and the pure magnesium extruded at 250 degrees C has the best electrochemical performance as magnesium anode, with the discharge potential of -1.571 V (vs. SCE). Plastic deformation process is a convenient method that can change the microstructure and improve the electrochemical behavior of magnesium anode. (c) 2017 Production and hosting by Elsevier B. V. on behalf of Chongqing University. This is an open access article under the CC BY-NC-ND license.
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