Stacking fault energy of C-alloyed steels: The effect of magnetism
文献类型：期刊论文
| 作者 | Lu, Song ; Li, Ruihuan ; Kadas, Krisztina ; Zhang, Hualei ; Tian, Yanzhong ; Kwon, Se Kyun ; Kokko, Kalevi ; Hu, Qing-Miao ; Hertzman, Staffan ; Vitos, Levente |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2017 |
| 卷号 | 122页码:72-81 |
| 关键词 | C-alloyed steel Stacking fault energy gamma-Fe Austenitic steels First-principles theory |
| ISSN号 | 1359-6454 |
| 通讯作者 | Lu, S ; Li, RH (reprint author), Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, SE-10044 Stockholm, Sweden. |
| 中文摘要 | First-principles calculations have been performed to study the effect of C on the stacking fault energy (SFE) of paramagnetic gamma-Fe and Fe-Cr-Ni austenitic steel. In these systems, the local magnetic structure is very sensitive to the volume in both fcc and hcp structures, which emphasizes the importance of the magnetovolume coupling effect on the SFE. The presence of C atom suppresses the local magnetic moments of Fe atoms in the first coordination shell of C. Compared to the hypothetical nonmagnetic case, paramagnetism significantly reduces the effect of C on the SFE. In the scenario of C being depleted from the stacking fault structure or twin boundaries, e.g., due to elevated temperature, where the chemical effect of C is dissipated, we calculate the C-induced volume expansion effect on the SFE. The volume induced change in the SFE corresponds to more than 50% of the total C effect on the SFE obtained assuming uniform C distribution. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 学科主题 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 收录类别 | SCI |
| 资助信息 | Swedish Research Council; Swedish Foundation for Strategic Research; Swedish Foundation for International Cooperation in Research and Higher Education, Swedens Innovation Agency (VINNOVA); Carl Tryggers Foundation; Hungarian Scientific Research Fund [OTKA 109570]; NSF of China [51271181, 51171187]; Chinese MoST [2014C8644001]; Magnus Ehrnrooth foundation |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78383]  |
| 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 | Lu, Song,Li, Ruihuan,Kadas, Krisztina,et al. Stacking fault energy of C-alloyed steels: The effect of magnetism[J]. ACTA MATERIALIA,2017,122:72-81. |
| APA | Lu, Song.,Li, Ruihuan.,Kadas, Krisztina.,Zhang, Hualei.,Tian, Yanzhong.,...&Vitos, Levente.(2017).Stacking fault energy of C-alloyed steels: The effect of magnetism.ACTA MATERIALIA,122,72-81. |
| MLA | Lu, Song,et al."Stacking fault energy of C-alloyed steels: The effect of magnetism".ACTA MATERIALIA 122(2017):72-81. |
入库方式： OAI收割
来源：金属研究所
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