Grain refinement and formation of ultrafine-grained microstructure in a low-carbon steel under electropulsing
文献类型：期刊论文
| 作者 | Y. Z. Zhou ; W. Zhang ; B. Q. Wang ; G. H. He ; J. D. Guo |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2002 |
| 卷号 | 17期号:8页码:2105-2111 |
| 关键词 | passing electric-current metals conductors 1045-steel castings cu50ti50 alloys size |
| ISSN号 | 0884-2914 |
| 中文摘要 | High current electropulsing was applied to a low-carbon steel in the solid state. The relationship between grain size and experimental conditions was revealed. It was found that the ultrafine-grained (UFG) microstructure could be formed when electric current density, heating rate, and cooling rate all were high. The UFG samples prepared by applying electropulsing were free of porosity and contamination, and had no large microstrain. Also, their tensile strength was dramatically enhanced over that of their coarse-grained counterparts, without a decrease in ductility. The mechanism for grain refinement and formation of the UFG microstructure was discussed. It is proposed that the effect of a decrease in thermodynamic barrier and enhancement of nucleation rate in a current-carrying system cannot be neglected. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36594]  |
| 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. Z. Zhou,W. Zhang,B. Q. Wang,et al. Grain refinement and formation of ultrafine-grained microstructure in a low-carbon steel under electropulsing[J]. Journal of Materials Research,2002,17(8):2105-2111. |
| APA | Y. Z. Zhou,W. Zhang,B. Q. Wang,G. H. He,&J. D. Guo.(2002).Grain refinement and formation of ultrafine-grained microstructure in a low-carbon steel under electropulsing.Journal of Materials Research,17(8),2105-2111. |
| MLA | Y. Z. Zhou,et al."Grain refinement and formation of ultrafine-grained microstructure in a low-carbon steel under electropulsing".Journal of Materials Research 17.8(2002):2105-2111. |
入库方式： OAI收割
来源：金属研究所
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