| 在污染大气环境中NaCl对镁合金的协同作用 |
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| 引用本文： | 肖葵,董超芳,李晓刚,赵耀斌.在污染大气环境中NaCl对镁合金的协同作用[J].装备环境工程,2006,3(6):26-29. |
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| 作者姓名： | 肖葵 董超芳 李晓刚 赵耀斌 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083
2. 北京科技大学材料科学与工程学院,北京,100083;中国科学院金属研究所金属腐蚀与防护国家重点实验室,沈阳,110016 |
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| 摘 要： | 研究了沉积NaC l的AZ91D镁合金在含有SO2和CO2的模拟污染大气环境中初期腐蚀行为。研究了在SO2和CO2协同作用下,表面沉积NaC l的AZ91D镁合金大气初期腐蚀规律。采用扫描电子显微镜(SEM)观察表面腐蚀形貌,XRD进行腐蚀产物分析。结果表明,由于NaC l的沉积加速了AZ91D镁合金的初期大气腐蚀,SO2、CO2和NaC l多种因素协同作用对AZ91D镁合金的初期大气腐蚀的影响远大于单一SO2、CO2和NaC l因素。
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| 关 键 词： | 镁合金 大气腐蚀 污染空气 |
| 文章编号： | 1672-9242(2006)06-0026-04 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006年4月20日 |
Synergetic Effect of NaCl in Polluted Atmosphere to AZ91D Magnesium Alloys |
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| XIAO Kui,DONG Chao-fang,LI Xiao-gang,ZHAO Yao-bin.Synergetic Effect of NaCl in Polluted Atmosphere to AZ91D Magnesium Alloys[J].Equipment Environmental Engineering,2006,3(6):26-29. |
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| Authors: | XIAO Kui DONG Chao-fang LI Xiao-gang ZHAO Yao-bin |
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| Institution: | 1. University of Science and Technology Beijing, Beijing 100083, China; 2. State Key Lahoratory tor Corrosion and Protection, Shenyang 110016, China |
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| Abstract: | The atmospheric corrosion behavior of AZ91D magnesium alloys in polluted atmosphere containing SO_2,CO_2,and Chloride ions(NaCl) was studied.The influence of NaCl on the initial atmospheric corrosion of AZ91D magnesium alloys in Simulate Atmospheric Environment including SO_2 and CO_2 are investigated by mass gain,SEM and X-ray diffraction techniques.The results showed that the presence of NaCl accelerated and catalyzed the reaction of initial stages of atmospheric corrosion for AZ91D magnesium alloy.It was showed that AZ91D magnesium alloy corrosion mass gain is greater than that caused by only the NaCl or by CO_2 and SO_2.It proved that the cooperative effect of SO_2 and CO_2 is important for the corrosion of AZ91D magnesium alloy with NaCl existence. |
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| Keywords: | magnesium alloys atmospheric corrosion polluted air |
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