Nitride-strengthened reduced activation ferritic/martensitic steels
文献类型：期刊论文
| 作者 | P. Hu ; W. Yan ; L. F. Deng ; W. Sha ; Y. Y. Shan ; K. Yang |
| 刊名 | Fusion Engineering and Design
 |
| 出版日期 | 2010 |
| 卷号 | 85期号:7-9页码:1632-1637 |
| 关键词 | RAFM steel Nitride strengthened delta-Ferrite Mechanical property Cleavage fracture martensitic 9cr steels heat-resistant steel creep-behavior precipitation behavior high-temperature microstructure carbon tungsten carbonitrides |
| ISSN号 | 0920-3796 |
| 中文摘要 | Two nitride-strengthened reduced activation ferritic/martensitic (RAFM) steels with different Mn contents were investigated. The experimental steels were designed based on the chemical composition of Eurofer 97 steel but the C content was reduced to an extremely low level. Microstructure observation and hardness tests showed that the steel with low Mn content (0.47 wt.%) could not obtain a full martensitic microstructure due to the inevitable delta-ferrite independent of cooling rate after soaking. This steel showed similar room temperature strength and higher strength at 600 degrees C, but lower impact toughness, compared with Eurofer 97 steel. Fractography of the Charpy impact specimen revealed that the low room temperature toughness should be related to the Ta-rich inclusions initiating the cleavage fracture. The larger amount of V-rich nitrides and more dissolved Cr in the matrix could be responsible for the strength being similar to Eurofer 97 steel. In the second steel developed from the first steel by increasing the Mn content from 0.47 wt.% to 3.73 wt.%, a microstructure of full martensite could be obtained. (C) 2010 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31159]  |
| 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 | P. Hu,W. Yan,L. F. Deng,et al. Nitride-strengthened reduced activation ferritic/martensitic steels[J]. Fusion Engineering and Design,2010,85(7-9):1632-1637. |
| APA | P. Hu,W. Yan,L. F. Deng,W. Sha,Y. Y. Shan,&K. Yang.(2010).Nitride-strengthened reduced activation ferritic/martensitic steels.Fusion Engineering and Design,85(7-9),1632-1637. |
| MLA | P. Hu,et al."Nitride-strengthened reduced activation ferritic/martensitic steels".Fusion Engineering and Design 85.7-9(2010):1632-1637. |
入库方式： OAI收割
来源：金属研究所
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