Coupling Effect Mechanism of the δ-Ferrite and M23C6 on the Mechanical Properties of 9Cr-Steel Deposited Metals
文献类型：期刊论文
| 作者 | Sun, Qishan1,2,3; Wei, Shitong1,3; Lu, Shanping1,3 |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2024-10-01 |
| 页码 | 18 |
| 关键词 | Deposited metals 9Cr-steels delta-ferrite Mechanical properties |
| ISSN号 | 1006-7191 |
| DOI | 10.1007/s40195-024-01760-7 |
| 通讯作者 | Wei, Shitong(stwei@imr.ac.cn) ; Lu, Shanping(shplu@imr.ac.cn) |
| 英文摘要 | 9Cr ferritic/martensitic (9Cr F/M) steels are considered ideal structural materials for various nuclear energy systems. However, delta-ferrite (delta), as a controlled phase, may occur in its welds. Three deposited metals with different carbon contents (0.04, 0.07, and 0.10 wt%) were investigated using experimental and finite element simulation methods. The results showed that the incomplete peritectic reaction, the incomplete delta to austenite phase transition, and the segregation of ferrite-stabilized elements led to the residual delta. The amount and morphology of delta significantly influence the mechanical properties. After increasing the carbon content, the increase in strength comes mainly from precipitation strengthening and dislocation strengthening, the presence of delta will reduce the strength. During the impact process, delta affects the absorbed energy for the stable crack growth through its morphology, and M23C6 affects the crack formation energy through its quantity. By decreasing the carbon content to a certain extent, the reduction of M23C6 content and the generation of large polygonal delta can effectively improve the toughness of 9Cr-steel deposited metals. |
| 资助项目 | LingChuang Research Project of China National Nuclear Corporation, China Institute of Atomic Energy[E141L803J1] ; Natural Science Foundation of Heilongjiang Province[TD2021E006] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001326697300003 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 资助机构 | LingChuang Research Project of China National Nuclear Corporation, China Institute of Atomic Energy ; Natural Science Foundation of Heilongjiang Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wei, Shitong; Lu, Shanping |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Qishan,Wei, Shitong,Lu, Shanping. Coupling Effect Mechanism of the δ-Ferrite and M23C6 on the Mechanical Properties of 9Cr-Steel Deposited Metals[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2024:18. |
| APA | Sun, Qishan,Wei, Shitong,&Lu, Shanping.(2024).Coupling Effect Mechanism of the δ-Ferrite and M23C6 on the Mechanical Properties of 9Cr-Steel Deposited Metals.ACTA METALLURGICA SINICA-ENGLISH LETTERS,18. |
| MLA | Sun, Qishan,et al."Coupling Effect Mechanism of the δ-Ferrite and M23C6 on the Mechanical Properties of 9Cr-Steel Deposited Metals".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2024):18. |
入库方式： OAI收割
来源：金属研究所
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