Improving Fatigue Properties of 316L Stainless Steel Welded Joints by Surface Spinning Strengthening
文献类型：期刊论文
| 作者 | Wang, Dongqiqiong1,2,3; Wang, Qiang4; Li, Xiaowu1,2; Zhang, Zhefeng1,2,3 |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2024-02-29 |
| 页码 | 15 |
| 关键词 | 316L stainless steel Welded joint Surface spinning strengthening Nanotwin Fatigue life |
| ISSN号 | 1006-7191 |
| DOI | 10.1007/s40195-024-01668-2 |
| 通讯作者 | Wang, Qiang(wangqiang@lnu.edu.cn) ; Li, Xiaowu(xwli@mail.neu.edu.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn) |
| 英文摘要 | The surface spinning strengthening (3S) mechanism and fatigue life extension mechanism of 316L stainless steel welded joint were systematically elucidated by microstructural analyses and mechanical tests. Results indicate that surface gradient hardening layer of approximately 1 mm is formed in the base material through grain fragmentation and deformation twin strengthening, as well as in the welding zone composed of deformed delta-phases and nanotwins. The fatigue strength of welded joint after 3S significantly rises by 32% (from 190 to 250 MPa), which is attributed to the effective elimination of surface geometric defects, discrete refinement of delta-Fe phases and the appropriate improvement in the surface strength, collectively mitigating strain localization and surface fatigue damage within the gradient strengthening layer. The redistributed fine delta-Fe phases benefited by strong stress transfer of 3S reduce the risk of surface weak phase cracking, causing the fatigue fracture to transition from microstructure defects to crystal defects dominated by slip, further suppressing the initiation and early propagation of fatigue cracks. |
| 资助项目 | Science and Technology Cooperation Project between Jilin Province and Chinese Academy of Sciences[2020SYHZ0017] ; Fundamental Research Funds for the Central Universities[N2202003] ; National Natural Science Foundation of China (NSFC)[52100003] ; National Natural Science Foundation of China (NSFC)[52171108] ; National Natural Science Foundation of China (NSFC)[52321001] ; Liaoning Revitalization Talents Program[XLYC1808027] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001175724000002 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 资助机构 | Science and Technology Cooperation Project between Jilin Province and Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China (NSFC) ; Liaoning Revitalization Talents Program |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Qiang; Li, Xiaowu; Zhang, Zhefeng |
| 作者单位 | 1.Northeastern Univ, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Shenyang 110819, Peoples R China 2.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 4.Liaoning Univ, Coll Light Ind, Shenyang 110036, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Dongqiqiong,Wang, Qiang,Li, Xiaowu,et al. Improving Fatigue Properties of 316L Stainless Steel Welded Joints by Surface Spinning Strengthening[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2024:15. |
| APA | Wang, Dongqiqiong,Wang, Qiang,Li, Xiaowu,&Zhang, Zhefeng.(2024).Improving Fatigue Properties of 316L Stainless Steel Welded Joints by Surface Spinning Strengthening.ACTA METALLURGICA SINICA-ENGLISH LETTERS,15. |
| MLA | Wang, Dongqiqiong,et al."Improving Fatigue Properties of 316L Stainless Steel Welded Joints by Surface Spinning Strengthening".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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