Optimization of microstructure and mechanical property of a Mg-Zn-Y-Nd alloy by extrusion process
文献类型：期刊论文
| 作者 | Du, B. N.1; Xiao, Z. P.1,4; Qiao, Y. X.4; Zheng, L.3; Yu, B. Y.3; Xu, D. K.2; Sheng, L. Y.1 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2019-02-15 |
| 卷号 | 775页码:990-1001 |
| 关键词 | Mg-Zn-Y-Nd alloy Microstructure Tensile property Dynamic recrystallization Deformation mechanism |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2018.10.167 |
| 通讯作者 | Sheng, L. Y.(lysheng@yeah.net) |
| 英文摘要 | A new type of biomedical Mg-Zn-Y-Nd alloy was fabricated and hot extruded in different passes to investigate the influence of extrusion process on its microstructure and mechanical property. The results show that the as-cast alloy (alloy C) is composed of coarse equiaxed grains and large intergranular secondary phases. After one-pass hot extrusion, the incomplete dynamic recrystallization has led to a mixed grain structure with fine equiaxed grains and coarse elongated grains in the alloy (E1). Besides, the secondary phases break into small particles and distribute linearly along the extrusion direction (ED). After two-pass hot extrusion, dynamic recrystallization continues and both equiaxed grains and elongated grains are further refined (alloy E2). The volume fraction of equiaxed grains increases to 82.4%. Moreover, the secondary phases change into smaller ones. The tensile property of Mg-Zn-Y-Nd alloy is improved dramatically by extrusion. The one-pass extrusion enhances the strength of the alloy obviously but contributes little to the elongation. While the two-pass extrusion not only enhances the strength but also improves the ductility of the alloy remarkably. The mechanical properties improvement of the Mg-Zn-Y-Nd alloy should be attributed to the combining effects of grain refinement, texture strengthening and precipitation strengthening generated by hot extrusion process. (C) 2018 Elsevier B.V. All rights reserved. |
| 资助项目 | Shenzhen Technology Innovation Project[JSGG20170412145203293] ; Shenzhen Basic Research Project[JCYJ201JCYJ2015052916222873] ; Shenzhen Basic Research Project[JCYJ20160427100211076] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000450981100115 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Shenzhen Technology Innovation Project ; Shenzhen Basic Research Project |
| 源URL | [http://ir.imr.ac.cn/handle/321006/130594]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sheng, L. Y. |
| 作者单位 | 1.Peking Univ, Shenzhen Inst, Shenzhen 518057, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Shenyang Univ Technol, Shenyang 110023, Liaoning, Peoples R China 4.Jiangsu Univ Sci & Technol, Zhenjiang 212003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, B. N.,Xiao, Z. P.,Qiao, Y. X.,et al. Optimization of microstructure and mechanical property of a Mg-Zn-Y-Nd alloy by extrusion process[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,775:990-1001. |
| APA | Du, B. N..,Xiao, Z. P..,Qiao, Y. X..,Zheng, L..,Yu, B. Y..,...&Sheng, L. Y..(2019).Optimization of microstructure and mechanical property of a Mg-Zn-Y-Nd alloy by extrusion process.JOURNAL OF ALLOYS AND COMPOUNDS,775,990-1001. |
| MLA | Du, B. N.,et al."Optimization of microstructure and mechanical property of a Mg-Zn-Y-Nd alloy by extrusion process".JOURNAL OF ALLOYS AND COMPOUNDS 775(2019):990-1001. |
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。