摘要
以高活性新型铝合金阳极材料Al-Mg-Bi-Sn-Ga-In为研究对象,采用扫描电镜、能谱分析、计时-电位法(E-T曲线)以及析氢集气法等分析测试方法研究了固溶温度对其显微组织、耐腐蚀性能和电化学性能的影响。结果表明,固溶温度对铝合金阳极耐腐蚀性能和电化学性能的影响主要是通过调整Sn、In等活性元素固溶度,改变活性元素偏析相数量和分布来实现的。当固溶温度为540℃时,铝合金阳极表面活性偏析相数量较少且呈弥散分布,铝阳极耐腐蚀性能较好,电化学活性较高。
The effects of solution temperature on microstructure, anti-corrosion property and electrochemical property of Al-Mg-Bi-Sn-Ga-In high active Al alloy anode were investigated by SEM, EDS, chronopotentiometry（E-T curves） and hydrogen collection tests. The results show that the effects of solution temperature on anti-corrosion and electrochemical properties of Al alloy anode are mainly achieved by adjusting the solid solubility of active elements（Sn, In, etc） and optimizing the quantity and distribution of segregation phase. When the solution temperature is 540 ℃, a small number of segregation phases are dispersed uniformly on the surface of Al alloy anode. The fine anti-crossion property as well as high electrochemical activity of Al alloy anode is obtained at the optimized solution temperature.
出处
《热加工工艺》
CSCD
北大核心
2015年第14期234-237,共4页
Hot Working Technology
基金
国家自然科学基金资助项目(51301023)
中央高校基本科研业务费专项资金资助项目(2013G1311054)
陕西省自然科学基金资助项目(2014JQ6210)
关键词
固溶温度
铝合金阳极
耐腐蚀性能
电化学性能
solution temperature
Al alloy anode
anti-crossion property
electrochemical property
