Evolution of the Microstructure and Microsegregation in Subrapidly Solidified Mg-6Al-4Zn-1.2Sn Magnesium Alloy
文献类型：期刊论文
| 作者 | Cui, Jie1,2; Luo, Tianjiao2; Wang, Cong1,2; Li, Yingju2; Feng, Xiaohui2; Huang, Qiuyan2; Yang, Yuansheng2 |
| 刊名 | ADVANCED ENGINEERING MATERIALS
 |
| 出版日期 | 2020-10-09 |
| 页码 | 8 |
| ISSN号 | 1438-1656 |
| 关键词 | grain refinement magnesium alloy microsegregation quasi-crystalline phase subrapid solidification |
| DOI | 10.1002/adem.202000583 |
| 通讯作者 | Yang, Yuansheng(ysyang@imr.ac.cn) |
| 英文摘要 | The evolution of the microstructure and microsegregation in a new type of Mg-6Al-4Zn-1.2Sn (wt%) cast magnesium alloy solidified at cooling rates from 4.5 x 10(1) degrees C s(-1)to 2.3 x 10(3) degrees C s(-1)is investigated. The results indicate that the secondary dendrite arm spacing and the average grain sizes decrease from 14.3 to 2.9 mu m and from 187 to 78 mu m, respectively, as the cooling rate increases from 4.5 x 10(1) degrees C s(-1)to 2.3 x 10(3) degrees C s(-1). The relationship between the secondary dendrite arm spacing (lambda(2)) and cooling rate (R) is fitted as lambda(2) = 69.7 x R-0.42. When the alloy solidifies in the range of cooling rates, a new quasi-crystalline I phase is formed due to faster solidification. The microsegregation ratios of Al, Zn, and Sn elements decrease significantly with the increase in cooling rate. Compared with the specimen solidified at 4.5 x 10(1) degrees C s(-1), the microsegregation ratios of Al, Zn, and Sn of that solidified at a cooling rate of 2.3 x 10(3) degrees C s(-1)decrease by 37.4%, 45.7%, and 31.6%, respectively. |
| 资助项目 | National Key Research and Development Program of China[2017YFB0103904] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000579286800001 |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/140934]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yang, Yuansheng |
| 作者单位 | 1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Jie,Luo, Tianjiao,Wang, Cong,et al. Evolution of the Microstructure and Microsegregation in Subrapidly Solidified Mg-6Al-4Zn-1.2Sn Magnesium Alloy[J]. ADVANCED ENGINEERING MATERIALS,2020:8. |
| APA | Cui, Jie.,Luo, Tianjiao.,Wang, Cong.,Li, Yingju.,Feng, Xiaohui.,...&Yang, Yuansheng.(2020).Evolution of the Microstructure and Microsegregation in Subrapidly Solidified Mg-6Al-4Zn-1.2Sn Magnesium Alloy.ADVANCED ENGINEERING MATERIALS,8. |
| MLA | Cui, Jie,et al."Evolution of the Microstructure and Microsegregation in Subrapidly Solidified Mg-6Al-4Zn-1.2Sn Magnesium Alloy".ADVANCED ENGINEERING MATERIALS (2020):8. |
入库方式： OAI收割
来源：金属研究所
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