Combination of dynamic transformation and dynamic recrystallization for realizing ultrafine-grained steels with superior mechanical properties
文献类型：期刊论文
| 作者 | Zhao, Lijia3,4; Park, Nokeun3,5; Tian, Yanzhong1,2,3; Shibata, Akinobu1,3; Tsuji, Nobuhiro1,3 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2016-12-14 |
| 卷号 | 6页码:11 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/srep39127 |
| 通讯作者 | Zhao, Lijia(zhao@mines.edu) ; Tsuji, Nobuhiro(nobuhiro-tsuji@mtl.kyoto-u.ac.jp) |
| 英文摘要 | Dynamic recrystallization (DRX) is an important grain refinement mechanism to fabricate steels with high strength and high ductility (toughness). The conventional DRX mechanism has reached the limitation of refining grains to several microns even though employing high-strain deformation. Here we show a DRX phenomenon occurring in the dynamically transformed (DT) ferrite, by which the required strain for the operation of DRX and the formation of ultrafine grains is significantly reduced. The DRX of DT ferrite shows an unconventional temperature dependence, which suggests an optimal condition for grain refinement. We further show that new strategies for ultra grain refinement can be evoked by combining DT and DRX mechanisms, based on which fully ultrafine microstructures having a mean grain size down to 0.35 microns can be obtained without high-strain deformation and exhibit superior mechanical properties. This study will open the door to achieving optimal grain refinement to nanoscale in a variety of steels requiring no high-strain deformation in practical industrial application. |
| 资助项目 | Elements Strategy Initiative for Structural Materials (ESISM) through the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan ; Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan[15H05767] ; China Scholarship Council, China[2011608007] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | NATURE PUBLISHING GROUP |
| WOS记录号 | WOS:000389810200001 |
| 资助机构 | Elements Strategy Initiative for Structural Materials (ESISM) through the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan ; Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan ; China Scholarship Council, China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/123349]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhao, Lijia; Tsuji, Nobuhiro |
| 作者单位 | 1.Kyoto Univ, Elements Strategy Initiat Struct Mat, Sakyo Ku, Kyoto 6068501, Japan 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Kyoto Univ, Dept Mat Sci & Engn, Sakyo Ku, Kyoto 6068501, Japan 4.Colorado Sch Mines, Dept Met & Mat Engn, Adv Steel Proc & Prod Res Ctr, Golden, CO 80401 USA 5.Yeungnam Univ, Sch Mat Sci & Engn, Gyongsan 712749, South Korea |
| 推荐引用方式 GB/T 7714 | Zhao, Lijia,Park, Nokeun,Tian, Yanzhong,et al. Combination of dynamic transformation and dynamic recrystallization for realizing ultrafine-grained steels with superior mechanical properties[J]. SCIENTIFIC REPORTS,2016,6:11. |
| APA | Zhao, Lijia,Park, Nokeun,Tian, Yanzhong,Shibata, Akinobu,&Tsuji, Nobuhiro.(2016).Combination of dynamic transformation and dynamic recrystallization for realizing ultrafine-grained steels with superior mechanical properties.SCIENTIFIC REPORTS,6,11. |
| MLA | Zhao, Lijia,et al."Combination of dynamic transformation and dynamic recrystallization for realizing ultrafine-grained steels with superior mechanical properties".SCIENTIFIC REPORTS 6(2016):11. |
入库方式： OAI收割
来源：金属研究所
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