摘要
为了提高铝的活化性能以及降低铝的腐蚀,用电化学方法研究了在碱性甲醇-乙醇有机体系中,添加剂H2O对铝阳极(99.999%)电化学行为的影响。结果表明:4 mol/L KOH+甲醇-乙醇(5∶5)+30%H2O体系能大幅度抑制铝腐蚀,缓蚀率高达70.04%,但极化程度有所增大。在-1.20 V处,铝的电流密度高达72.66 mA/cm2;开路电位Eocp负移程度最大(-1.933 V)。
To improve activation properties and decrease the corrosion rates of aluminum,effects of additives H2O on electrochemical behaviors of aluminum anode（99.999%）in alkaline carbinol-ethanol organic solution were studied by using electrochemical methods.It is shown that corrosion rates of aluminum are largely depressed by 4 mol/L KOH＋carbinol-ethanol（5∶5）＋30%H2O solution,and corrosion inhibition percentage is 70.04%.At-1.20 V,its current density is 72.66 mA/cm2.Eocp is-1.933 V.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2010年第1期73-75,共3页
Aerospace Materials & Technology
基金
材料腐蚀与防护四川省高校重点实验室项目资助(2008CL06)
关键词
铝阳极
添加剂
电化学行为
Aluminum anode
Additives
Electrochemical properties
