Stacking fault energies of Mn, Co and Nb alloyed austenitic stainless steels
文献类型：期刊论文
| 作者 | S. Lu ; Q. M. Hu ; B. Johansson ; L. Vitos |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2011 |
| 卷号 | 59期号:14页码:5728-5734 |
| 关键词 | Stacking fault energy First-principles electron theory Austenitic stainless steels temperature-dependence 1st-principles theory plastic-deformation strain-rate grain-size transformation martensite iron mechanism |
| ISSN号 | 1359-6454 |
| 中文摘要 | The alloying effects of Mn, Co and Nb on the stacking fault energy (SFE) of austenitic stainless steels, Fe-Cr-Ni with various Ni contents, are investigated via quantum-mechanical first-principles calculations. In the composition range (c(Cr) = 20%, 8 <= c(Ni) <= 20%, 0 <= c(Mn), c(Co), c(Nb) <= 8%, balance Fe) studied here, it is found that Mn always decreases the SFE at 0 K but increases it at room temperature in high-Ni (c(Ni) greater than or similar to 16%) alloys. The SFE always decreases with increasing Co content. Niobium increases the SFE significantly in low-Ni alloys; however, this effect is strongly diminished in high-Ni alloys. The SFE-enhancing effect of Ni usually observed in Fe-Cr-Ni alloys is inverted to an SFE-decreasing effect by Nb for c(Nb) greater than or similar to 3%. The revealed nonlinear composition dependencies are explained in terms of the peculiar magnetic contributions to the total SFE. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30565]  |
| 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 | S. Lu,Q. M. Hu,B. Johansson,et al. Stacking fault energies of Mn, Co and Nb alloyed austenitic stainless steels[J]. Acta Materialia,2011,59(14):5728-5734. |
| APA | S. Lu,Q. M. Hu,B. Johansson,&L. Vitos.(2011).Stacking fault energies of Mn, Co and Nb alloyed austenitic stainless steels.Acta Materialia,59(14),5728-5734. |
| MLA | S. Lu,et al."Stacking fault energies of Mn, Co and Nb alloyed austenitic stainless steels".Acta Materialia 59.14(2011):5728-5734. |
入库方式： OAI收割
来源：金属研究所
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