Deformation and fracture of Ti-base nanostructured composite
文献类型：期刊论文
| 作者 | J. Das ; K. B. Kim ; Z. F. Zhang ; G. He ; C. Muller ; J. Eckert |
| 刊名 | International Journal of Materials Research
 |
| 出版日期 | 2008 |
| 卷号 | 99期号:9页码:985-990 |
| 关键词 | Ti-base composite Fracture angle Shear band Lattice distortion Rotation mechanism bulk metallic-glass matrix composites mechanical-properties enhanced plasticity high-strength hydrostatic-pressure dendrite composite ductile dendrites microstructure behavior |
| ISSN号 | 1862-5282 |
| 中文摘要 | The in-situ formation of nano-eutectic/primary dendrite bulk composites in Ti-base multicomponent alloy systems allows the design of advanced high strength materials, where a nanostructured matrix is combined with ductile beta-Ti solid solution dendrites as a toughening phase. This microstructure can be achieved over a wide range of cooling rates. The multicomponent recipe stabilizes the beta-Ti phase and helps to reduce the eutectic spacing to the nanometer scale. The superiority in the mechanical properties, i.e. high room temperature ductility (up to 30%) as well as high strength (up to 2600 MPa), stems from the possibility to tailor the alloy composition leading to the formation of different volume fractions of dendrites in a nanostructured eutectic matrix. All composites with high volume fraction of dendrites offer a high ductility (epsilon(p) = 8-30%) and a final failure angle in the range of 46-51 degrees. The role of the volume fraction of the dendrites in the composite in enhancing the ductility as well as the fracture angle is critically assessed. The deformation and fracture mechanisms are linked to the macroscopic fracture features as well as to impingement of the shear bands leading to rotation of the shear plane and lattice distortion at the atomic level. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/32711]  |
| 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 | J. Das,K. B. Kim,Z. F. Zhang,et al. Deformation and fracture of Ti-base nanostructured composite[J]. International Journal of Materials Research,2008,99(9):985-990. |
| APA | J. Das,K. B. Kim,Z. F. Zhang,G. He,C. Muller,&J. Eckert.(2008).Deformation and fracture of Ti-base nanostructured composite.International Journal of Materials Research,99(9),985-990. |
| MLA | J. Das,et al."Deformation and fracture of Ti-base nanostructured composite".International Journal of Materials Research 99.9(2008):985-990. |
入库方式： OAI收割
来源：金属研究所
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