Achievement of high strength and plasticity product of the nugget zone in friction stir welded high-Mn steel via controlling stacking fault energy
文献类型：期刊论文
| 作者 | Wang, Y. Q.1; Guo, S.1; Duan, R. H.1; Luo, Z. A.1; Chen, J.1; Ma, Z. Y.2; Xie, G. M.1 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2023-01-18 |
| 卷号 | 862页码:12 |
| ISSN号 | 0921-5093 |
| 关键词 | Friction stir welding High Mn steel Preheating Stacking fault energy TWIP effect |
| DOI | 10.1016/j.msea.2022.144427 |
| 通讯作者 | Xie, G. M.(xiegm@ral.neu.edu.cn) |
| 英文摘要 | The high Mn steel (Mn >= 20 wt.%) is widely applied because of excellent cryogenic properties. In the fusion -welded high-Mn steel joint, the Mn vapor and segregation degrade the joint quality. Friction stir welding (FSW) produces a high-Mn steel joint without defect, but the nugget zone (NZ) exhibits a poor plasticity. In this work, the preheating was subjected to FSW high-Mn steel to improve the plasticity of the NZ. Compared with the as-welded NZ, the as-preheated NZ contained slightly coarser austenite with lower density of dislocations (6.7 x 1014 m-2), and had a lower stacking fault energy (SFE) (47.18 mJ m-2) at room temperature. The lower SFE caused the deformation mechanism of dislocation slip and active twinning-induced plasticity (TWIP) in the as -preheated NZ owing to the lower back stress and critical twinning stress. Subsequently, a high strength and plasticity product of 62 GPa% was achieved in the as-preheated NZ, which was consistent with high strain hardening rate. At cryogenic temperature of-196 degrees C, the SFE of the as-preheated NZ decreased to 35.66 mJ m- 2, but more active TWIP besides dislocation slip was found during tension. Therefore, the as-preheated NZ exhibited excellent strength and plasticity product of 91.9 GPa%. Furthermore, the yield strength of the as -preheated NZ was slightly reduced, which was attributed to the decreased of dislocation density and grain growth. |
| 资助项目 | National Nature Science Foundation of China[52274378] ; National Nature Science Foundation of China[51774085] ; Liaoning Province Excellent Youth Foundation[2020-YQ-03] ; Open Research Fund from the State Key Laboratory of Rolling and Automation, Northeastern University[2020RALKFKT009] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000905156300001 |
| 资助机构 | National Nature Science Foundation of China ; Liaoning Province Excellent Youth Foundation ; Open Research Fund from the State Key Laboratory of Rolling and Automation, Northeastern University |
| 源URL | [http://ir.imr.ac.cn/handle/321006/175702]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xie, G. M. |
| 作者单位 | 1.Northeastern Univ, State Key Lab Rolling & Automat, 3 Wenhua Rd, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Y. Q.,Guo, S.,Duan, R. H.,et al. Achievement of high strength and plasticity product of the nugget zone in friction stir welded high-Mn steel via controlling stacking fault energy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2023,862:12. |
| APA | Wang, Y. Q..,Guo, S..,Duan, R. H..,Luo, Z. A..,Chen, J..,...&Xie, G. M..(2023).Achievement of high strength and plasticity product of the nugget zone in friction stir welded high-Mn steel via controlling stacking fault energy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,862,12. |
| MLA | Wang, Y. Q.,et al."Achievement of high strength and plasticity product of the nugget zone in friction stir welded high-Mn steel via controlling stacking fault energy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 862(2023):12. |
入库方式： OAI收割
来源：金属研究所
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