Effect of Y concentration on the microstructure and mechanical properties of as-cast Mg-Zn-Y-Zr alloys
文献类型：期刊论文
| 作者 | D. K. Xu ; W. N. Tang ; L. Liu ; Y. B. Xu ; E. H. Han |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2007 |
| 卷号 | 432期号:1-2页码:129-134 |
| 关键词 | As-cast Mg alloys mechanical properties I-phase and W-phase Mg-Zn-Y-Zr alloy behavior phase |
| ISSN号 | 0925-8388 |
| 中文摘要 | In this work, the influence of element Y on the mechanical properties of the as-cast Mg-5.5Zn-xY-0.8Zr alloys (with element Y content of 0, 1.08, 1.97 and 3.08 wt.%) has been investigated and compared. The results showed that the alloy with Y content of 1.08 wt.% had the superior tensile strength, but its ductility was the lowest. When Y content reached 1.97 or 3.08 wt.%, the tensile strength of the alloys decreased obviously, but the ductility had a little improvement. X-ray phase analysis showed that when Y content was 1.08 wt.%, the alloy mainly contained I-phase and alpha-Mg matrix, whereas when Y content was 1.97 or 3.08 wt.%, besides I-phase and alpha-Mg matrix, W-phase would be formed. And the diffraction peak of W-phase intensified with the increase of element Y content. Based on fracture observations, the influence of I-phase and W-phase on the mechanical properties of the alloys has been explained, respectively. It revealed that I-phase was closely bonded with the Mg matrix and could effectively retard the basal slip, and then strengthened the alloy greatly. However, W-phase was easily cracked during the tensile process, which degraded the mechanical properties. (c) 2006 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33951]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | D. K. Xu,W. N. Tang,L. Liu,et al. Effect of Y concentration on the microstructure and mechanical properties of as-cast Mg-Zn-Y-Zr alloys[J]. Journal of Alloys and Compounds,2007,432(1-2):129-134. |
| APA | D. K. Xu,W. N. Tang,L. Liu,Y. B. Xu,&E. H. Han.(2007).Effect of Y concentration on the microstructure and mechanical properties of as-cast Mg-Zn-Y-Zr alloys.Journal of Alloys and Compounds,432(1-2),129-134. |
| MLA | D. K. Xu,et al."Effect of Y concentration on the microstructure and mechanical properties of as-cast Mg-Zn-Y-Zr alloys".Journal of Alloys and Compounds 432.1-2(2007):129-134. |
入库方式： OAI收割
来源：金属研究所
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