工程科学学报Issue(10)：1358-1363,6.DOI:10.13374/j.issn2095-9389.2015.10.016
脉冲电流对AZ21镁电极电压滞后的影响
Influence of pulse current on the voltage delay of AZ21 magnesium electrode
摘要
Abstract
A surface film generates on AZ21 magnesium alloy in magnesium sulfate solutions, resulting in serious voltage delay. Pulse current is conducive to the application of AZ21 magnesium alloy in a battery, for it can shorten the lag time, reduce the initial discharge voltage drop and increase the discharge stability. The voltage delay of AZ21 magnesium alloy in a 2 mol·L-1 MgSO4 solution was investigated by chronopotentiometry, multi-current steps, electrochemical impedance measurement, and scanning electron micros-copy. After a 50 mA pulse current was applied for 1 s, the voltage lag time of AZ21 magnesium alloy decreased from 6. 35 s (3. 23 V) to 0. 59 s (0. 034 V).关键词
镁合金/表面膜/电压/迟滞/脉冲电流Key words
magnesium alloys/surface films/voltage/delay/pulse current分类
矿业与冶金引用本文复制引用
邓玲,陈琳,杨巧玲,陈昌国..脉冲电流对AZ21镁电极电压滞后的影响[J].工程科学学报,2015,(10):1358-1363,6.基金项目
国家自然科学基金资助项目(21273292) （21273292）
材料腐蚀与防护四川省重点实验室开放基金项目(2014CL12) （2014CL12）
