Effects of Orthogonal Heat Treatment on Microstructure and Mechanical Properties of GN9 Ferritic/Martensitic Steel
文献类型：期刊论文
| 作者 | Ma, Tingwei1,2; Hao, Xianchao3; Wang, Ping1 |
| 刊名 | CHINESE JOURNAL OF MECHANICAL ENGINEERING
 |
| 出版日期 | 2023-12-19 |
| 卷号 | 36期号:1页码:12 |
| 关键词 | Ferritic/Martensitic steel Orthogonal design M23C6 carbide Ductile-to-brittle transition temperature |
| ISSN号 | 1000-9345 |
| DOI | 10.1186/s10033-023-00984-5 |
| 通讯作者 | Hao, Xianchao(xchao@imr.ac.cn) ; Wang, Ping(wping@epm.neu.edu.cn) |
| 英文摘要 | Microstructure and mechanical properties of GN9 Ferritic/Martensitic steel for sodium- cooled fast reactors have been investigated through orthogonal design and analysis. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), differential scanning calorimeter (DSC), tensile and impact tests were used to evaluate the heat treatment parameters on yield strength, elongation and ductile-to-brittle transition temperature (DBTT). The results indicate that the microstructures of GN9 steel after orthogonal heat treatments consist of tempered martensite, M23C6, MX carbides and MX carbonitrides. The average prior austenite grains increase and the lath width decreases with the austenitizing temperature increasing from 1000 degrees C to 1080 degrees C. Tempering temperature is the most important factor that influences the dislocation evolution, yield strength and elongation compared with austenitizing temperature and cooling methods. Austenitizing temperature, tempering temperature and cooling methods show interactive effects on DBTT. Carbide morphology and distribution, which is influenced by austenitizing and tempering temperatures, is the critical microstructural factor that influences the Charpy impact energy and DBTT. Based on the orthogonal design and microstructural analysis, the optimal heat treatment of GN9 steel is austenitizing at 1000 degrees C for 0.5 h followed by air cooling and tempering at 760 degrees C for 1.5 h. |
| 资助项目 | Natural Science Foundation Guidance Plan of Liaoning Province |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001126996600002 |
| 出版者 | SPRINGER |
| 资助机构 | Natural Science Foundation Guidance Plan of Liaoning Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Hao, Xianchao; Wang, Ping |
| 作者单位 | 1.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110004, Peoples R China 2.Yingkou Inst Technol, Yingkou 115014, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Tingwei,Hao, Xianchao,Wang, Ping. Effects of Orthogonal Heat Treatment on Microstructure and Mechanical Properties of GN9 Ferritic/Martensitic Steel[J]. CHINESE JOURNAL OF MECHANICAL ENGINEERING,2023,36(1):12. |
| APA | Ma, Tingwei,Hao, Xianchao,&Wang, Ping.(2023).Effects of Orthogonal Heat Treatment on Microstructure and Mechanical Properties of GN9 Ferritic/Martensitic Steel.CHINESE JOURNAL OF MECHANICAL ENGINEERING,36(1),12. |
| MLA | Ma, Tingwei,et al."Effects of Orthogonal Heat Treatment on Microstructure and Mechanical Properties of GN9 Ferritic/Martensitic Steel".CHINESE JOURNAL OF MECHANICAL ENGINEERING 36.1(2023):12. |
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。