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Shear and distensile fracture behaviour of Ti-based composites with ductile dendrites
文献类型：期刊论文
| 作者 | Z. F. Zhang ; G. He ; J. Eckert |
| 刊名 | Philosophical Magazine
 |
| 出版日期 | 2005 |
| 卷号 | 85期号:9页码:897-915 |
| 关键词 | Ti-based composite dendrites shear fracture distensile fracture shear bands bulk metallic-glass mechanical-properties enhanced plasticity amorphous-alloys high-strength matrix composites deformation microstructure phase flow |
| ISSN号 | 1478-6435 |
| 中文摘要 | The room-temperature deformation and fracture behaviour of Ti-based composites with ductile dendrites, prepared by copper mold casting and arc-melting techniques, was investigated. Under compressive loading, the Ti-based composites display high fracture strength (about 2000 MPa) and good ductility (about 4 or 10%). The yield strength of the Ti-based composites is relatively low (about 565-923 MPa). However, they have a large strain-hardening ability before failure, due to the interactions between shear bands and dendrites. For the arc-melted Ti-based composites, fracture often occurs in a shear mode with a high plasticity ( about 10%). In contrast, the cast Ti-based composites break or split into several parts with a compressive plasticity of 4%, rather than failing in a shear mode. A new fracture mechanism, i.e. distensile fracture, is proposed for the first time to elucidate the failure of the as-cast Ti-based composites. Based on the difference in the fracture modes of the differently prepared composites, the relationships between shear and distensile fracture mechanisms and the corresponding fracture criteria are discussed. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35250]  |
| 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 | Z. F. Zhang,G. He,J. Eckert. Shear and distensile fracture behaviour of Ti-based composites with ductile dendrites[J]. Philosophical Magazine,2005,85(9):897-915. |
| APA | Z. F. Zhang,G. He,&J. Eckert.(2005).Shear and distensile fracture behaviour of Ti-based composites with ductile dendrites.Philosophical Magazine,85(9),897-915. |
| MLA | Z. F. Zhang,et al."Shear and distensile fracture behaviour of Ti-based composites with ductile dendrites".Philosophical Magazine 85.9(2005):897-915. |
入库方式： OAI收割
来源：金属研究所
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