Formation, thermal stability and mechanical properties of Zr-Nb-Cu-Ni-Al bulk metallic glasses
文献类型：期刊论文
| 作者 | W. B. Dong ; H. F. Zhang ; W. S. Sun ; B. Z. Ding ; Z. Q. Hu |
| 刊名 | Materials Transactions
 |
| 出版日期 | 2006 |
| 卷号 | 47期号:5页码:1294-1298 |
| 关键词 | zirconium-based bulk metallic glass glass forming ability thermal stability mechanical properties crystalline phase-formation amorphous-alloys forming ability enhanced plasticity strength composites science |
| ISSN号 | 1345-9678 |
| 中文摘要 | Bulk Zr62-xNbxCu15.4Ni12.6Al10 (x = 0-10 at%) glassy alloys were prepared via copper mould casting. XRD. DSC, SEM and compression test show appropriate niobium addition can enhance the glass forming ability (GFA) and thermal stability of these alloys. The bulk amorphous alloy with x = 2.5 displays the largest temperature interval of supercooled liquid region (Delta T-x) up to 105 K and the largest gamma value 0.428. However, the largest critical diameter is not achieved at x = 2.5 but at x = 5 instead, indicating a larger Delta T-x and gamma value does not necessarily mean a higher glass-forming ability. At x = 10, no glass transition but crystallization takes place, suggesting too much Nb may promote crystallization. The compression test shows increasing Nb content increases the strength and reduces the plasticity of the Zr62-xNbxCu15.4Ni12.6Al10 glassy alloy, which is apparently attributed to the decrease in the number of microstructural heterogeneities in the metallic glasses, resulting in much less severe multiplication and interaction of shear bands. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34179]  |
| 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 | W. B. Dong,H. F. Zhang,W. S. Sun,et al. Formation, thermal stability and mechanical properties of Zr-Nb-Cu-Ni-Al bulk metallic glasses[J]. Materials Transactions,2006,47(5):1294-1298. |
| APA | W. B. Dong,H. F. Zhang,W. S. Sun,B. Z. Ding,&Z. Q. Hu.(2006).Formation, thermal stability and mechanical properties of Zr-Nb-Cu-Ni-Al bulk metallic glasses.Materials Transactions,47(5),1294-1298. |
| MLA | W. B. Dong,et al."Formation, thermal stability and mechanical properties of Zr-Nb-Cu-Ni-Al bulk metallic glasses".Materials Transactions 47.5(2006):1294-1298. |
入库方式： OAI收割
来源：金属研究所
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