What types of grain boundaries can be passed through by persistent slip bands?
文献类型：期刊论文
| 作者 | Z. F. Zhang ; Z. G. Wang ; J. Eckert |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2003 |
| 卷号 | 18期号:5页码:1031-1034 |
| 关键词 | cyclic deformation-behavior fatigued copper polycrystals dislocation-structures single-crystals bicrystals metals zones |
| ISSN号 | 0884-2914 |
| 中文摘要 | Three typical interactions of persistent slip bands (PSBs) with different types of grain boundaries (GBs) were investigated and analyzed in fatigued copper crystals. The results show that PSBs cannot transfer through all types of large-angle GBs, regardless of their orientation with respect to the stress axis. Secondary slip was often observed near the GBs, leading to strain incompatibility. When the slip systems of the two adjacent crystals are coplanar, the transmission of a PSB across a GB strongly depends on the slip directions of the two adjacent crystals. It was found that only the low-angle GBs can be passed through by PSBs, and accordingly they are insensitive to intergranular fatigue cracking. For a special copper bicrystal with coplanar slip systems, the ladderlike dislocation arrangements within the adjacent PSBs become discontinuous and a dislocation-affected-zone appears near the GB due to the difference in the slip direction of the two adjacent crystals. Therefore, the necessary conditions for the transmission of a PSB across a GB are that the neighboring grains have a coplanar slip system and identical slip directions. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36195]  |
| 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,Z. G. Wang,J. Eckert. What types of grain boundaries can be passed through by persistent slip bands?[J]. Journal of Materials Research,2003,18(5):1031-1034. |
| APA | Z. F. Zhang,Z. G. Wang,&J. Eckert.(2003).What types of grain boundaries can be passed through by persistent slip bands?.Journal of Materials Research,18(5),1031-1034. |
| MLA | Z. F. Zhang,et al."What types of grain boundaries can be passed through by persistent slip bands?".Journal of Materials Research 18.5(2003):1031-1034. |
入库方式： OAI收割
来源：金属研究所
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