Investigation of deformation instability of Au/Cu multilayers by indentation
文献类型：期刊论文
| 作者 | Y. P. Li ; X. F. Zhu ; G. P. Zhang ; J. Tan ; W. Wang ; B. Wu |
| 刊名 | Philosophical Magazine
 |
| 出版日期 | 2010 |
| 卷号 | 90期号:22页码:3049-3067 |
| 关键词 | multilayer deformation mechanism interface dislocation deformation stability transmission electron-microscopy metallic multilayers plastic-deformation shear bands strengthening mechanisms amorphous-alloys thin-films composites nanoindentation evolution |
| ISSN号 | 1478-6435 |
| 中文摘要 | Plastic deformation behavior of Au/Cu multilayers with individual layer thicknesses of 25-250 nm was investigated via microindentation experiments. It was found that plastic instability of the Au/Cu multilayer exhibits strong length scale (individual layer thickness and grain size) dependence. The smaller the length scale, the easier shear bands form. In other words, plastic deformation becomes unstable with decreasing length scale. Cross-sectional observation along with plan-view indicates that the occurrence of plastic deformation instability corresponds to transformation of the deformation mechanism associated with geometrical configuration and length scale of the material. At nanometer scale, buckling-assisted interface crossing of dislocations results in local shear band, while, at submicron scale or above, local dislocation pileup-induced interface offset leads to plastic instability. Theoretical analysis is conducted to understand the length scale-dependent plastic deformation behavior of the multilayer. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31251]  |
| 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 | Y. P. Li,X. F. Zhu,G. P. Zhang,et al. Investigation of deformation instability of Au/Cu multilayers by indentation[J]. Philosophical Magazine,2010,90(22):3049-3067. |
| APA | Y. P. Li,X. F. Zhu,G. P. Zhang,J. Tan,W. Wang,&B. Wu.(2010).Investigation of deformation instability of Au/Cu multilayers by indentation.Philosophical Magazine,90(22),3049-3067. |
| MLA | Y. P. Li,et al."Investigation of deformation instability of Au/Cu multilayers by indentation".Philosophical Magazine 90.22(2010):3049-3067. |
入库方式： OAI收割
来源：金属研究所
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