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| Study on Process Parameters of Preparation of Al-Mg-Sc Alloy by Coelectrodeposition |
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Received:May 31, 2017
Revised:June 01, 2017
Accepted:June 05, 2017
Published Online:September 18, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.10.013 |
| KeyWord:Al-Mg-Sc alloy; decomposition voltage; coelectrodeposition method; molten salt |
| Author | Institution |
| Renhao |
辽宁科技大学 |
| Lijidong |
辽宁科技大学 |
| Liushuang |
辽宁科技大学 材料与冶金学院 |
| Wangyiyong |
辽宁科技大学 |
| Lujinlin |
辽宁科技大学 |
| Zhangmingjie |
东北大学 |
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| Abstract: |
| Al-Mg-Sc alloy was prepared by Coelectrodeposition Method. Time variation of process parameters such as decomposition voltage and current intensity were monitored by Continuous Pulse Oscillograph Method. The results show that actual decomposition voltage rises with increase of current intensity. Decomposition voltage drops on average of 0.3 V with addition of 0.5%MgO-0.5%Sc2O3. Actual decomposition voltage rises firstly with increase of pole distance, and later growth gradually slows, as raising temperature reduces actual decomposition voltage. According to actual decomposition voltage with variation of electrolysis time, feeding period is determined to be 23 min. Al-2.71%Mg-0.63%Sc alloy is prepared by electrolyzing for 2 h with temperature of 720 ℃, current intensity of 3 A, and pole distance of 3 cm. |
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