Effect of Precipitation Behavior and Deformation Twinning Evolution on the Mechanical Properties of 16Cr-25.5Ni-4.2Mo Superaustenitic Stainless Steel Weld Metals
文献类型：期刊论文
| 作者 | Liu, Chenghao1,2; Dong, Wenchao1,3; Sun, Jian1; Lu, Shanping1 |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2024-10-26 |
| 页码 | 15 |
| 关键词 | Superaustenitic stainless steel weld metal Microstructural evolution Carbides Mechanical properties Deformation twins |
| ISSN号 | 1006-7191 |
| DOI | 10.1007/s40195-024-01787-w |
| 通讯作者 | Sun, Jian(jsun16b@imr.ac.cn) ; Lu, Shanping(shplu@imr.ac.cn) |
| 英文摘要 | In the study, three 16Cr-25.5Ni-4.2Mo superaustenitic stainless steel weld metals with C contents of 0.082 wt%, 0.075 wt%, and 0.045 wt%, were prepared to investigate the microstructural evolution and its effect on mechanical behavior. At a C content of 0.082 wt%, the microstructure of weld metal consisted of austenite, M6C, and M23C6, where M6C was the main carbide. The number and average size of the M6C carbides significantly decreased as the C content decreased. At a C content of 0.045 wt%, only a very small number of M6C carbides were observed in the weld metal. For the tensile process, the number of deformation twins increased as the C content decreased, which introduced a stronger dynamic Hall-Petch effect, resulting in only a small decrease in the ultimate tensile strength of the weld metal. Meanwhile, the increase in deformation twins significantly enhanced the elongation of the weld metals. For the impact process, the impact energy increased from 204 to 241 J as the C content decreased. The crack initiation resistance was improved due to the reduction in M6C carbide, which inhibited cracking at the interface of M6C/matrix. Additionally, the crack propagation resistance was enhanced due to the increase in deformation twins, which consumed more impact energy. |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA0410201] ; Natural Science Foundation of Heilongjiang Province[TD2021E006] ; Liaoning Provincial Doctoral Initiation Fund Project[2022-BS-008] ; China Postdoctoral Science Foundation[2023T160654] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001342066900001 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; Natural Science Foundation of Heilongjiang Province ; Liaoning Provincial Doctoral Initiation Fund Project ; China Postdoctoral Science Foundation |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun, Jian; Lu, Shanping |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 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, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Chenghao,Dong, Wenchao,Sun, Jian,et al. Effect of Precipitation Behavior and Deformation Twinning Evolution on the Mechanical Properties of 16Cr-25.5Ni-4.2Mo Superaustenitic Stainless Steel Weld Metals[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2024:15. |
| APA | Liu, Chenghao,Dong, Wenchao,Sun, Jian,&Lu, Shanping.(2024).Effect of Precipitation Behavior and Deformation Twinning Evolution on the Mechanical Properties of 16Cr-25.5Ni-4.2Mo Superaustenitic Stainless Steel Weld Metals.ACTA METALLURGICA SINICA-ENGLISH LETTERS,15. |
| MLA | Liu, Chenghao,et al."Effect of Precipitation Behavior and Deformation Twinning Evolution on the Mechanical Properties of 16Cr-25.5Ni-4.2Mo Superaustenitic Stainless Steel Weld Metals".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2024):15. |
入库方式： OAI收割
来源：金属研究所
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