The impact toughness of a nitride-strengthened martensitic heat resistant steel
文献类型：期刊论文
| 作者 | W. F. Zhang ; W. Yan ; W. Sha ; W. Wang ; Q. G. Zhou ; Y. Y. Shan ; K. Yang |
| 刊名 | Science China-Technological Sciences
 |
| 出版日期 | 2012 |
| 卷号 | 55期号:7页码:1858-1862 |
| 关键词 | nitride-strengthening martensite heat resistant steel precipitation DBTT impact toughness high-temperature creep-behavior stress nitrogen |
| ISSN号 | 1674-7321 |
| 中文摘要 | The nitride-strengthened martensitic heat resistant steel is precipitation strengthened only by nitrides. In the present work, the effect of nitride precipitation behavior on the impact toughness of an experimental steel was investigated. Nitrides could hardly be observed when the steel was tempered at 650A degrees C. When the tempering temperature was increased to 700A degrees C and 750A degrees C, a large amount of nitrides were observed in the matrix. It was surprising to reveal that the impact energy of the half-size samples greatly increased from several Joules to nearly a hundred Joules. The ductile-brittle transition temperature (DBTT) was also discovered to decrease from room temperature to -50A degrees C when the tempering temperature was increased from 650A degrees C to 750A degrees C. The nitride precipitation with increasing tempering temperature was revealed to be responsible for the improved impact toughness. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60460]  |
| 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 | W. F. Zhang,W. Yan,W. Sha,et al. The impact toughness of a nitride-strengthened martensitic heat resistant steel[J]. Science China-Technological Sciences,2012,55(7):1858-1862. |
| APA | W. F. Zhang.,W. Yan.,W. Sha.,W. Wang.,Q. G. Zhou.,...&K. Yang.(2012).The impact toughness of a nitride-strengthened martensitic heat resistant steel.Science China-Technological Sciences,55(7),1858-1862. |
| MLA | W. F. Zhang,et al."The impact toughness of a nitride-strengthened martensitic heat resistant steel".Science China-Technological Sciences 55.7(2012):1858-1862. |
入库方式： OAI收割
来源：金属研究所
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