Formation mechanism and annealing behavior of nanocrystalline ferrite in pure Fe fabricated by ball milling
文献类型：期刊论文
| 作者 | J. Yin ; M. Umemoto ; Z. G. Liu ; K. Tsuchiya |
| 刊名 | Isij International
 |
| 出版日期 | 2001 |
| 卷号 | 41期号:11页码:1389-1396 |
| 关键词 | nanocrystalline ferrite pure Fe ball milling heavy deformation structure bonding arb process dislocation density attrition iron energy size |
| ISSN号 | 0915-1559 |
| 中文摘要 | Nanocrystalline ferrite formation by ball milling in pure Fe (0.004 mass% C) has been studied through morphology observation and microhardness measurements. It was found that nano-ferrite first formed at the outer surface area in the powders at the early stage of ball milling, which was attributed to the deformation localization. The boundaries between the nano-ferrite and work-hardened regions are quite clear under SEM and the hardness of nano-ferrite region is more than 3 GPa higher than that of the work-hardened region. Further milling led to the particle refinement and formation of nano-ferrite of the whole particles. It has been suggested that the nanocrystalline ferrite formed through a transition from dislocation cell wall created by work hardening during ball milling to grain boundary, which is regarded to contribute to the hardness gap between the work hardened structure and the nanocrystalline ferrite. A relatively high stability against temperature was observed in the nano-ferrite formed by ball milling. The irregular grain boundaries of nano-ferrite annealed at high temperature was attributed to that the grain growth of nanocrystalline ferrite takes place by coalescence of neighboring grains. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36881]  |
| 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. Yin,M. Umemoto,Z. G. Liu,et al. Formation mechanism and annealing behavior of nanocrystalline ferrite in pure Fe fabricated by ball milling[J]. Isij International,2001,41(11):1389-1396. |
| APA | J. Yin,M. Umemoto,Z. G. Liu,&K. Tsuchiya.(2001).Formation mechanism and annealing behavior of nanocrystalline ferrite in pure Fe fabricated by ball milling.Isij International,41(11),1389-1396. |
| MLA | J. Yin,et al."Formation mechanism and annealing behavior of nanocrystalline ferrite in pure Fe fabricated by ball milling".Isij International 41.11(2001):1389-1396. |
入库方式： OAI收割
来源：金属研究所
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