Toughening mechanisms of a Ti-based nanostructured composite containing ductile dendrites
文献类型：期刊论文
| 作者 | H. Zhang ; X. F. Pan ; Z. F. Zhang ; J. Das ; K. B. Kim ; C. Muller ; F. Baier ; M. Kusy ; A. Gebert ; G. He ; J. Eckert |
| 刊名 | Zeitschrift Fur Metallkunde
 |
| 出版日期 | 2005 |
| 卷号 | 96期号:6页码:675-680 |
| 关键词 | Ti-based composite dendritic phase compressive plasticity shear bands work hardening bulk metallic-glass fatigue-crack propagation ni-cu-be amorphous-alloys fracture-toughness enhanced plasticity supercooled liquid microstructure behavior shear |
| ISSN号 | 0044-3093 |
| 中文摘要 | The compressive deformation behavior of a multi-component Ti-Cu-Ni-Sn-Nb composite containing ductile dendritic precipitates embedded in a nanostructured matrix was investigated. The Ti-based composite not only displays a high compressive plasticity of approximate to 21 %, but also exhibits a high fracture strength of approximate to 1.8 GPa, which is comparable to that of monolithic bulk metallic glasses. Pronounced work hardening was observed after yielding. The surface deformation morphology reveals that the work-hardening behavior of the composite is related to the plastic deformation of the dendritic phase and the interaction of shear bands in the nanostructured matrix with the hardened dendrites. At the final stage of compression, most of the dendrites are work hardened, whereby the propagation of the shear bands in the matrix is retarded. The strong interaction between the dendrites and the matrix contributes to the high strength and plastic deformation capability of the composite. The fracture surface exhibits viscous flow traces, indicating that softening or melting of the composite occurs at the moment of fracture, due to the release of the high elastic energy stored in the specimen. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35207]  |
| 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 | H. Zhang,X. F. Pan,Z. F. Zhang,et al. Toughening mechanisms of a Ti-based nanostructured composite containing ductile dendrites[J]. Zeitschrift Fur Metallkunde,2005,96(6):675-680. |
| APA | H. Zhang.,X. F. Pan.,Z. F. Zhang.,J. Das.,K. B. Kim.,...&J. Eckert.(2005).Toughening mechanisms of a Ti-based nanostructured composite containing ductile dendrites.Zeitschrift Fur Metallkunde,96(6),675-680. |
| MLA | H. Zhang,et al."Toughening mechanisms of a Ti-based nanostructured composite containing ductile dendrites".Zeitschrift Fur Metallkunde 96.6(2005):675-680. |
入库方式： OAI收割
来源：金属研究所
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