| On the thermal stability of a 9Cr-ODS steel aged at 700 degrees C up to 10000 h - Mechanical properties and microstructure | |
| Zheng, Pengfei1; Li, Yanfen2,3; Zhang, Jiarong2; Shen, Jingjie4; Nagasaka, Takuya4; Muroga, Takeo4; Abe, Hiroaki5 | |
| Corresponding Author | Li, Yanfen(yfli@imr.ac.cn) |
| 2020-05-05 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 783Pages:9 |
| Abstract | Thermal aging experiments on a 9Cr-ODS steel were carried out at 700 degrees C with a period from 100 up to 10000 h, and the effects on mechanical properties and microstructural evolutions were investigated. It was found that hardness and tensile properties exhibited negligible degradation by thermal aging. The mixed ductile and brittle fracture modes in the tensile specimens remained almost no change. Although a slight recovery of grains/subgrain structures and dislocations took place, the homogeneously dispersed nano-size oxides with an ultrahigh density in matrix were not affected during the thermal aging. However, a significant coarsening of carbides around grain/subgrain boundaries appeared. Benefited from the extreme stability of nano-size oxides, the 9Cr-ODS steel possesses the excellent thermal stability of mechanical properties exposed to the elevated temperature of 700 degrees C up to 10000 h. |
| Keyword | Nuclear materials Oxide dispersion strengthened (ODS) steels Thermal stability Mechanical properties Microstructural evolution |
| Funding Organization | National Nature Science Foundation of China ; Japan Society for the Promotion of Science (JSPS) ; National Institute for Fusion Science ; University of Tokyo in Japan ; Excellent Scholar Funding by Institute of Metal Research Chinese Academy of Science (IMR-CAS) |
| DOI | 10.1016/j.msea.2020.139292 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Nature Science Foundation of China[51971217] ; Japan Society for the Promotion of Science (JSPS)[PU 14001] ; National Institute for Fusion Science ; University of Tokyo in Japan ; Excellent Scholar Funding by Institute of Metal Research Chinese Academy of Science (IMR-CAS)[JY7A7A111A1] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000528267700008 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/138460 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Yanfen |
| Affiliation | 1.Southwestern Inst Phys, Chengdu 610041, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, IMR, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 4.Natl Inst Fus Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan 5.Univ Tokyo, Sch Engn, Tokai, Ibaraki 3191188, Japan |
| Recommended Citation GB/T 7714 | Zheng, Pengfei,Li, Yanfen,Zhang, Jiarong,et al. On the thermal stability of a 9Cr-ODS steel aged at 700 degrees C up to 10000 h - Mechanical properties and microstructure[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,783:9. |
| APA | Zheng, Pengfei.,Li, Yanfen.,Zhang, Jiarong.,Shen, Jingjie.,Nagasaka, Takuya.,...&Abe, Hiroaki.(2020).On the thermal stability of a 9Cr-ODS steel aged at 700 degrees C up to 10000 h - Mechanical properties and microstructure.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,783,9. |
| MLA | Zheng, Pengfei,et al."On the thermal stability of a 9Cr-ODS steel aged at 700 degrees C up to 10000 h - Mechanical properties and microstructure".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 783(2020):9. |
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