| 摘要: |
| 研究了Sn元素对AZ61镁合金阳极材料显微组织及其在3.5%的氯化钠溶液中的电化学性能和腐蚀速率.结果表明：Sn元素的加入抑制了β相的析出,生成了新的第二相,数量随着Sn含量的增加而增多;Sn元素的加入提高了AZ61镁合金阳极活性,改善了镁合金的电化学性能,随着Sn含量的增加,合金的自腐蚀电位负移,腐蚀速率稍有增加,恒电流放电电位负移,当Sn含量为3%时,AZ61-Sn镁合金阳极材料电化学综合性能明显优于AP65镁合金. |
| 关键词: 镁合金 阳极材料 电化学 腐蚀 |
| DOI： |
| 分类号:TQ1523 |
| 基金项目:国防科工局民口配套项目(JPPT-115-2-747) |
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| Effect of tin on the corrosion and electrochemical properties of AZ61 magnesium alloy |
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MA Zheng-qing,TENG Zhao-yang
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School of Materials Science and engineering, Central South University, Changsha 410083,China
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| Abstract: |
| Effects of Sn addition on the microstructure corrosion rate and electrochemical properties of AZ61 magnesium anodes in 3.5% NaCl solution were studied. The results showed that with the addition of tinβphase was restrained and a new second phase was observed which increased with the content of tin increasing. the activity and electrochemical properties of Mg alloys were improved due to the addition of tin. With increase of tin the corrosion rate increased slightly and both of the self-corrosion potential and discharge potential shifted negatively. The electrochemical properties of magnesium abodes with 3% tin were better than AP65. |
| Key words: magnesium alloy anode materials electrochemical properties corrosion |
