Role of Si content on microstructural and mechanical responses of 16Cr-25Ni superaustenitic stainless steel weld metals
文献类型：期刊论文
| 作者 | Tian, Wenbin2,3; Wei, Shitong1,3; Wu, Dong1,3; Sun, Jian1,3; Dong, Wenchao1,3; Lu, Shanping3 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2022-09-05 |
| 卷号 | 852页码:13 |
| 关键词 | Superaustenitic stainless steel Weld metal Si content M6C Twinning deformation Mechanical properties |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2022.143727 |
| 通讯作者 | Lu, Shanping(shplu@imr.ac.cn) |
| 英文摘要 | In this work, three 16Cr-25Ni superaustenitic stainless steel weld metals with the Si content of 0.03 wt%, 1.22 wt % and 2.01 wt%, were prepared to study the microstructural evolution and its effect on mechanical properties. The results showed that with the increase of Si content, the size and number density of Mo-rich M6C carbide were increased in the weld metals. In particular, massive long strip shape M6C carbides were observed in the weld metal with the Si content of 2.01 wt%. For tensile tests, good match of strength and ductility was obtained in the weld metals with the Si content of 0.03 wt% and 1.22 wt%. However, the ductility of the weld metal was sharply decreased when the Si content further increased to 2.01 wt%, owing to the long strip shape M6C carbide that weakened the coordinated deformation with the matrix. The impact toughness was monotonously decreased from 185 J to 12 J with the increase of Si content, for the M6C carbide generated easier local stress concentration and fracture that the local stress concentration in the matrix was increasingly difficult to favor the twinning deformation. The results in this work are meaningful for the design of the weld metal with optimized micro-structure and high mechanical performance for liquid lead-bismuth eutectic environment. |
| 资助项目 | Shenyang National Laboratory for Materials Science Innovation Projects SYNL2021 ; LingChuang Research Project of China National Nuclear Corporation |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000842984600001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Shenyang National Laboratory for Materials Science Innovation Projects SYNL2021 ; LingChuang Research Project of China National Nuclear Corporation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/174533]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Lu, Shanping |
| 作者单位 | 1.Chinese Acad Sci, Inst Metal Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Metal Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Wenbin,Wei, Shitong,Wu, Dong,et al. Role of Si content on microstructural and mechanical responses of 16Cr-25Ni superaustenitic stainless steel weld metals[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,852:13. |
| APA | Tian, Wenbin,Wei, Shitong,Wu, Dong,Sun, Jian,Dong, Wenchao,&Lu, Shanping.(2022).Role of Si content on microstructural and mechanical responses of 16Cr-25Ni superaustenitic stainless steel weld metals.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,852,13. |
| MLA | Tian, Wenbin,et al."Role of Si content on microstructural and mechanical responses of 16Cr-25Ni superaustenitic stainless steel weld metals".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 852(2022):13. |
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。