Initial corrosion behaviors of AZ91 magnesium alloy in the presence SO2
文献类型：期刊论文
| 作者 | C. Lin ; X. G. Li |
| 刊名 | Journal of University of Science and Technology Beijing
 |
| 出版日期 | 2004 |
| 卷号 | 11期号:5页码:433-441 |
| 关键词 | AZ91D magnesium alloy SO2 initial stages atmospheric corrosion industry chloride |
| ISSN号 | 1005-8850 |
| 中文摘要 | The effects of SO2 on the initial atmospheric corrosion of AZ91D magnesium alloy were investigated in laboratory. Metallographic observation, SEM (Scanning Electron Microscopy), XRD (X-ray Diffraction) and XPS (X-ray Proton Spectrograph) were used to analyze and discuss the initial surface morphology of corrosion layers and corrosion products. The corrosion rate of the alloy increases with increasing the content of SO2. The initial attack has the characteristics of localized corrosion and preferentially concentrates on a phase. MgO and Mg(OH)(2) form at first, which provide a protective layer, then the existence of SO2 decreases the pH of the thin solution on the alloy, accelerates dissolution process, and promotes the formation of MgSO(4)(.)6H(2)O and MgSO(4)(.)6H(2)O, meanwhile cracks were found on the corrosion products with corrosion continuation. These soluble corrosion products and the cracks provide the paths for filtering oxygen and corrosion pollutants into the matrix, which results in severe localized corrosion and the loss of protective function of film. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35445]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | C. Lin,X. G. Li. Initial corrosion behaviors of AZ91 magnesium alloy in the presence SO2[J]. Journal of University of Science and Technology Beijing,2004,11(5):433-441. |
| APA | C. Lin,&X. G. Li.(2004).Initial corrosion behaviors of AZ91 magnesium alloy in the presence SO2.Journal of University of Science and Technology Beijing,11(5),433-441. |
| MLA | C. Lin,et al."Initial corrosion behaviors of AZ91 magnesium alloy in the presence SO2".Journal of University of Science and Technology Beijing 11.5(2004):433-441. |
入库方式： OAI收割
来源：金属研究所
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