| Microstructure, cold rolling, heat treatment, and mechanical properties of Mg-Li alloys | |
| Alternative Title | Microstructure, cold rolling, heat treatment, and mechanical properties of Mg-Li alloys |
| Ji Haibin; Yao Guangchun; Li Hongbin | |
| 2008 | |
| Source Publication | JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
 |
| ISSN | 1005-8850 |
| Volume | 15Issue:4Pages:440-443 |
| Abstract | The magnesium-lithium (Mg-Li) alloy exhibits two phase structures between 5.7wt% and 10.3wt% Li contents, consisting of the alpha (hcp) Mg-rich and the beta (bcc) Li-rich phases, at room temperature. In the experiment, Mg-5Li-2Zn, Mg-9Li-2Zn, Mg-16Li-2Zn, Mg-22Li-2Zn, Mg-5Li-2Zn-2Ca, Mg-9Li-2Zn-2Ca, Mg-16Li.-2Zn-2Ca, and Mg-22Li-2Zn-2Ca (wt%) were melted. During the melting process, the flux, which was composed of lithium chloride (LiCl) and lithium fluoride (LiF) in the proportion of 3:1 (mass ratio) and argon gas were used to protect the alloys from oxidation. The microstructure, mechanical properties, and cold-rolling workability of the wrought alloys were studied. The crystal grain of the alloys (adding Ga) is fine. The hardness of the studied alloys decreases with an increase in element Li. The density of the studied alloys is in the range of 1.187 to 1.617 g/cm(3). The reduction of the Mg-16Li-2Zn and Mg-22Li-2Zn alloys can exceed 85% at room temperature. The Mg-9Li-2Zn-2Ca alloy was heat treated at 300 degrees C for 8, 12, 16, and 24 h, respectively. The optimum heat treatment of the Mg-9Li-2Zn-2Ca alloy is 300 degrees Cx12h by metallographic observation and by studying the mechanical properties of the alloys. (c) 2008 University of Science and Technology Beijing. All rights reserved. |
| Other Abstract | The magnesium-lithium (Mg-Li) alloy exhibits two phase structures between 5.7wt% and 10.3wt% Li contents, consisting of the a (hcp) Mg-rich and the β (bee) Li-rich phases, at room temperature. In the experiment, Mg-5Li-2Zn, Mg-9Li-2Zn,Mg-16Li-2Zn, Mg-22Li-2Zn, Mg-5Li-2Zn-2Ca, Mg-9Li-2Zn-2Ca, Mg-16Li-2Zn-2Ca, and Mg-22Li-2Zn-2Ca (wt%) were melted.During the melting process, the flux, which was composed of lithium chloride (LiCI) and lithium fluoride (LiF) in the proportion of 3:1 (mass ratio) and argon gas were used to protect the alloys from oxidation. The mierostructure, mechanical properties, and cold-rolling workability of the wrought alloys were studied. The crystal grain of the alloys (adding Ga) is fine. The hardness of the studied alloys decreases with an increase in element Li. The density of the studied alloys is in the range of 1.187 to 1.617 g/cm3 The reduction of the Mg-16Li-2Zn and Mg-22Li-2Zn alloys can exceed 85% at room temperature. The Mg-9Li-2Zn-2Ca alloy was heat treated at 300℃ for 8, 12, 16, and 24 h, respectively. The optimum heat treatment of the Mg-9Li-2Zn-2Ca alloy is 300~Cx12h by metallographic observation and by studying the mechanical properties of the alloys. |
| Keyword | Mg-Li alloy Mg-Li-Zn alloy cold rolling heat treatment microstructure mechanical properties |
| Indexed By | CSCD |
| Language | 英语 |
| CSCD ID | CSCD:3383319 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/152954 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Ji Haibin,Yao Guangchun,Li Hongbin. Microstructure, cold rolling, heat treatment, and mechanical properties of Mg-Li alloys[J]. JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING,2008,15(4):440-443. |
| APA | Ji Haibin,Yao Guangchun,&Li Hongbin.(2008).Microstructure, cold rolling, heat treatment, and mechanical properties of Mg-Li alloys.JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING,15(4),440-443. |
| MLA | Ji Haibin,et al."Microstructure, cold rolling, heat treatment, and mechanical properties of Mg-Li alloys".JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING 15.4(2008):440-443. |
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