Corrosion action and passivation mechanism of magnesium alloy in fluoride solution
文献类型：期刊论文
| 作者 | Li Jianzhong2; Huang Jiugui1; Tian Yanwen2; Liu Changsheng2 |
| 刊名 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| 出版日期 | 2009 |
| 卷号 | 19期号:1页码:50-54 |
| 关键词 | magnesium alloy passive film corrosion fluoride nickel sulfate |
| ISSN号 | 1003-6326 |
| 其他题名 | Corrosion action and passivation mechanism of magnesium alloy in fluoride solution |
| 英文摘要 | Corrosion action and passive mechanism of magnesium alloy in the fluoride solution were studied by means of scanning electron microscopy(SEM), energy dispersive X-ray spectroscopy(EDS), and electrochemistry methods. The results show that an insoluble MgF(2) film is generated on the surface of magnesium alloy activated in the hydrofluoric acid. And the mass of the deposited MgF(2) film may reach a constant value, when the mass ratio of Mg/F on the magnesium alloy surface is fixed at 11.3:1. The activated magnesium alloy gains a 'passivation state' in a mixture of sulfuric acid and hydrofluoric acid at a volume ratio of less than 1.2. At the same time the mass of magnesium alloy is maintained as a function of the time. When the ratio is above 1.4, the mass of magnesium alloy rapidly decreases. The passive film formed through adsorption of HF(2)(-) (or H(2)F(3)(-), H(3)F(4)(-)) ions by the deposited MgF(2) film can protect the magnesium alloy from corrosion in fluoride solution, but not in non-fluoride solutions. The passive state is maintained for activated magnesium alloy in an acidic sulfuric nickel solution with added fluoride. If fluoride and carbonate are added to the acidic sulfuric nickel solution, a replacement reaction between magnesium alloy and solution takes place. |
| 语种 | 英语 |
| CSCD记录号 | CSCD:3563621 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/156406]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.Baosteel Co Ltd, Steel Sheet Cold Rolling Plant, Baosteel Branch, Shanghai 200431, Peoples R China 2.中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Li Jianzhong,Huang Jiugui,Tian Yanwen,et al. Corrosion action and passivation mechanism of magnesium alloy in fluoride solution[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2009,19(1):50-54. |
| APA | Li Jianzhong,Huang Jiugui,Tian Yanwen,&Liu Changsheng.(2009).Corrosion action and passivation mechanism of magnesium alloy in fluoride solution.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,19(1),50-54. |
| MLA | Li Jianzhong,et al."Corrosion action and passivation mechanism of magnesium alloy in fluoride solution".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 19.1(2009):50-54. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。