| 丙炔醇对铝阳极电化学性能的影响 |
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| 引用本文： | 余祖孝.丙炔醇对铝阳极电化学性能的影响[J].宇航材料工艺,2011,41(3). |
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| 作者姓名： | 余祖孝 |
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| 作者单位： | 四川理工学院材料与化学工程学院,材料腐蚀与防护四川省高校重点实验室,自贡,643000 |
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| 基金项目： | 材料腐蚀与防护四川省高校重点实验室项目资助 |
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| 摘 要： | 为了提高铝阳极材料的耐析氢腐蚀和活化性能,用失重腐蚀、电化学等方法研究了在4 mol/LKOH溶液中,丙炔醇对铝阳极(99.999%)电化学性能的影响,结果表明:添加0.5%丙炔醇,不仅使铝的析氢腐蚀速率降低(缓蚀率达85.35%),又能最大程度保持铝阳极的活性(超过铝在4 mol/L KOH溶液中的活性),开路电位Eocp负移达-2.033 V.此外,在"饱和Ca(OH)2+4 mol/L KOH"溶液中,添加0.5%丙炔醇时,铝的缓蚀率高达93.21%,其表面腐蚀均匀,活化性能进一步提高,Eocp负移达-2.011 V.为铝阳极材料的应用提供了有实用价值的添加剂配方.
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| 关 键 词： | 铝阳极 碱性溶液 丙炔醇 电化学性能 |
Effect of Propargyl Alcohol on Electrochemical Behavior ofAluminum Anode in Alkaline Solution |
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| Yu Zuxiao.Effect of Propargyl Alcohol on Electrochemical Behavior ofAluminum Anode in Alkaline Solution[J].Aerospace Materials & Technology,2011,41(3). |
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| Authors: | Yu Zuxiao |
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| Institution: | Yu Zuxiao(Sichuan Province Key Laboratory for Corrosion and Protection of Materials,College of Material and Chemical Engineering,Sichuan University of Science & Engineering,Zigong 643000) |
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| Abstract: | To improve corrosion-inhibition and activation properties of aluminum,effects of additives(propargyl alcohol) on electrochemical properties of aluminum anode(99.999%)in 4 mol/L KOH solution were studied by using electrochemical methods.The results show that corrosion of aluminum is inhibited,corrosion-inhibition ratio is 85.35% and that Eocp is also improved when 0.5% propargyl alcohol is added into 4 mol/L KOH.It not only decreases corrosion rate(93.21% of corrosion-inhibition ratio),but also increases act... |
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| Keywords: | Aluminum anode Alkaline solution Propargyl alcohol Electrochemical properties |
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