Corrosion Behavior of Mg65Cu25-xZnxGd10 (x=0, 5)Metallic Glass |
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作者姓名: | LI Guoqiang HUANG Wei LI Huanxi ZHENG Lijing Hashmi M F |
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作者单位: | School of Materials Science and Engineering, Beijing University of Aeronautics & Astronautics, Beijing 10083, China |
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基金项目: | Funded by the National 863 Program (No. 2003AA305071) |
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摘 要: | The effect of substitutional element Zn on corrosion behavior of Mg65Cu25Gd10 glass was investigated. The amorphous structure of Mg65Cu25-xZnxGd10 (x=0,5) alloys were examined by X-ray diffractometry and differential scanning calorimetry (DSC). The dissolution rates of Mg65Cu25-xZnxGd10 (x=0, 5) metallic glasses in a 5 wt% NaCl solution with pH value of 7 were determined by a hydrogen evolution testing method. The corrosion behavior of these alloys was characterized using dipping tests with 5 wt% NaCl, in combination with electrochemical measurements and scanning electron microscopy (SEM). Results show that the anti-corrosion ability of Mg65Cu25Gd10 alloy is significantly improved due to the addition of Zn. Possible mechanism responsible for the improvement is discussed.
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关 键 词: | 镁基金属玻璃 腐蚀行为 抗腐蚀性 Mg65Cu25-xZnxGd10 |
收稿时间: | 14 January 2009 |
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