| 周和荣,揭敢新,赵越,李晓刚.纯铝在SO2气氛溶液中的腐蚀行为研究[J].装备环境工程,2013,10(2):4-8. ZHOU He-rong,JIE Gan-xin,ZHAO Yue,LI Xiao-gang.Corrosion Behaviors of Pure Aluminum in Simulated SO2Pollution Environment[J].Equipment Environmental Engineering,2013,10(2):4-8. |
| 纯铝在SO2气氛溶液中的腐蚀行为研究 |
| Corrosion Behaviors of Pure Aluminum in Simulated SO2Pollution Environment |
| 投稿时间：2012-10-23 修订日期：2013-03-01 |
| DOI： |
| 中文关键词: SO2污染 失重法 交流阻抗 局部交流阻抗 |
| 英文关键词:SO2environment mass loss method EIS LEIS |
| 基金项目:国家自然科学基金（50971048） |
|
|
|
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 采用扫描电镜（SEM/EDX）、失重法、交流阻抗谱和局部交流阻抗研究了纯铝1060在0.004mol/L Na2SO4 （pH=3.1）溶液中的腐蚀行为和规律。研究结果表明，纯铝1060在模拟溶液中连续浸泡720h后，材料质量损失与浸泡时间的关系符合指数规律即C=A·tn；腐蚀产物形貌为不规则的团状或块状，分析表明腐蚀产物为氢氧化铝和硫酸铝水合物；交流阻抗结果显示纯铝1060腐蚀速率随浸泡时间的延长逐渐降低；局部交流阻抗图谱显示材料表面局部阻抗随时间而变化，并形成点蚀。 |
| 英文摘要: |
| The corrosion behavior and mechanism of1060aluminum in0.004mol/L Na2SO4 solution was investigated using SEM, mass loss, electrochemical impedance spectroscopy (EIS) and local electrochemical impedance spectroscopy (LEIS) method. The results showed that mass loss accords with exponential rule asC=A·tn after720h immersion. Surface observation showed that corrosion product is agglomerate and accidented; the corrosion product is made of alumina and aluminum sulfate hydrate. The EIS results revealed that the corrosion rate of 1060aluminum gradually becomes low with increase of immersion time. LEIS results indicated that the local electrochemical impedance on the specimen surface changes with the immersion time and the pitting has occurred. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
