Precipitation of carbonitrides and their strengthening upon non-quench aging for micro-alloyed acicular ferrite pipeline steels
文献类型：期刊论文
| 作者 | M. C. Zhao ; T. Hanamura ; H. Qiu ; K. Yang |
| 刊名 | Materials Transactions
 |
| 出版日期 | 2005 |
| 卷号 | 46期号:4页码:784-789 |
| 关键词 | pipeline steel non-quench aging mechanical property carbonitride toughness |
| ISSN号 | 1345-9678 |
| 中文摘要 | A non-quench aging (reheating hot-rolled plates to 600° C for isothermal aging), different from the conventional quench aging (quench followed by temper), was carried Out to improve the strength level for acicular ferrite (AF) pipeline steels, while their impact energies and ductilities did not decrease obviously, and the Charpy impact fracture appearances were similar between the as-rolled and the aged samples, showing the ductile dimple rupture over the whole fracture surface. The strengthening was ascribed to the further additional precipitation of microalloyed carbonitrides, and the little degradation of ductile and toughness is believed to relate to both the tempering of martensite in martensite/austenite (M/A) islands and the improvement of microstructural uniformity upon the non-quench aging. The nucleation and strengthening of the carbonitrides in the Current non-quench aging were hypothetically calculated with the present mathematical modes and hypothesis based on the thermodynamic consideration and Orowan looping mechanism, which was somewhat consistent with the present experiment, indicating that the strengthening mechanism of the present AF pipeline steels by the current non-quench aging evidently resulted from the additional precipitation of carbonitrides in ferrite region of approximately 600° C. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35267]  |
| 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 | M. C. Zhao,T. Hanamura,H. Qiu,et al. Precipitation of carbonitrides and their strengthening upon non-quench aging for micro-alloyed acicular ferrite pipeline steels[J]. Materials Transactions,2005,46(4):784-789. |
| APA | M. C. Zhao,T. Hanamura,H. Qiu,&K. Yang.(2005).Precipitation of carbonitrides and their strengthening upon non-quench aging for micro-alloyed acicular ferrite pipeline steels.Materials Transactions,46(4),784-789. |
| MLA | M. C. Zhao,et al."Precipitation of carbonitrides and their strengthening upon non-quench aging for micro-alloyed acicular ferrite pipeline steels".Materials Transactions 46.4(2005):784-789. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。