Vickers hardness and compressive properties of bulk metallic glasses and nanostructure-dendrite composites
文献类型：期刊论文
| 作者 | X. F. Pan ; H. Zhang ; Z. F. Zhang ; M. Stoica ; G. He ; J. Eckert |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2005 |
| 卷号 | 20期号:10页码:2632-2638 |
| 关键词 | mechanical-properties amorphous-alloys enhanced plasticity supercooled liquid ductile dendrites shear fracture cu-zr ti deformation strength |
| ISSN号 | 0884-2914 |
| 中文摘要 | The compressive properties and the Vickers hardness of Cu-, Fe-, Mg-, and Zr-based monolithic bulk metallic glasses (BMGs) as well as Ti-based nanostructure-dendrite composites were investigated and compared. The monolithic BMGs exhibit nearly the same yield strength cry and fracture strength sigma(f) but poor plasticity. The Vickers hardness H-V of the monolithic BMGs follows the empirical relationship H-V/3 approximate to sigma(y) approximate to sigma(f). The Ti-based composites yield at a relatively low stress level (less than 850 MPa) but fail at a very high fracture stress (similar to 2 GPa) and exhibit a large strain hardening ability. Accordingly, the Vickers hardness H-V of the Ti-based nanostructure-dendrite composites obeys the relationship sigma(y) < H-V/3 < sigma(f). Based on these results, the relationship between the Vickers hardness and the compressive properties of the investigated materials will be discussed by taking the yield and fracture strength (sigma(y) and sigma(f)), the strain hardening exponent n, and the elastic and plastic energy stored upon deformation (delta(E) and delta(P)) into account. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34995]  |
| 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 | X. F. Pan,H. Zhang,Z. F. Zhang,et al. Vickers hardness and compressive properties of bulk metallic glasses and nanostructure-dendrite composites[J]. Journal of Materials Research,2005,20(10):2632-2638. |
| APA | X. F. Pan,H. Zhang,Z. F. Zhang,M. Stoica,G. He,&J. Eckert.(2005).Vickers hardness and compressive properties of bulk metallic glasses and nanostructure-dendrite composites.Journal of Materials Research,20(10),2632-2638. |
| MLA | X. F. Pan,et al."Vickers hardness and compressive properties of bulk metallic glasses and nanostructure-dendrite composites".Journal of Materials Research 20.10(2005):2632-2638. |
入库方式： OAI收割
来源：金属研究所
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