Evolution and Healing Mechanism of 1Cr22Mn16N High Nitrogen Austenitic Stainless Steel Interface Microstructure During Plastic Deformation Bonding
文献类型：期刊论文
| 作者 | Yang Ruize1,2,3; Zhai Ruzong1,2; Ren Shaofei1,2; Sun Mingyue1,2; Xu Bin1,2; Qiao Yanxin3; Yang Lanlan3 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2024-07-11 |
| 卷号 | 60期号:7页码:915-925 |
| 关键词 | high-nitrogen austenitic stainless steel plastic deformation bonding dynamic recrystallization |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2023.00015 |
| 通讯作者 | Sun Mingyue(mysun@imr.ac.cn) ; Qiao Yanxin(yxqiao@just.edu.cn) |
| 英文摘要 | High nitrogen austenitic stainless steels (HNASSs) are widely used for their good wear resistance and high strength, plasticity, and corrosion resistance. Among these steels, 1Cr22Mn16N HNASS improves the cost effectiveness because of the incorporation of a N element in place of the expensive Ni element. In addition, the overall mechanical properties of the steel are further improved because of the solid solution-strengthening effect of the N element. However, the traditional welding methods such as arc welding, tungsten gas shielded welding, and friction stir welding are not suitable for 1Cr22Mn16N HNASS welding because of the different solubility of N in the liquid and solid phases. N easily spills out during the welding process, which considerably degrades the mechanical properties of the welded joints. Therefore, a new welding method needs to be explored to solve the problems in 1Cr22Mn16N welding. In this work, the bonding technology of plastic deformation was introduced to solve the poor performance problems of 1Cr22Mn16N HNASS welded joints. The experiments were conducted through the Glebble 3500 thermomechanical simulation in the temperature range of 1050-1250 degrees C and a strain range of 10%-40% with a strain rate of 0.1 s(-1). The microstructure evolution of the bonding interface was characterized and investigated using OM, EBSD, and TEM; the interface healing mechanism was discussed, and the bonding strength of the joint was evaluated by tensile test. The results show that the bonding level of the interface substantially increases with the increase in deformation and temperature. When the deformation temperature reached 1200 degrees C and the strain reached 40%, the mechanical properties of the bonding interface reached up to the same level as the matrix. During the process of deformation, discontinuous dynamic recrystallization (DDRX) occurred at the interface because of thermomechanical coupling; meanwhile, dislocations accumulated and entanglement occurred under the action of stress, forming a large number of subgrain boundaries within the original grain boundaries near the interface, which, lead to continuous dynamic recrystallization (CDRX). The healing of the interface was achieved by the synergistic effect of CDRX and DDRX. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001260210800006 |
| 出版者 | SCIENCE PRESS |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun Mingyue; Qiao Yanxin |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 3.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang Ruize,Zhai Ruzong,Ren Shaofei,et al. Evolution and Healing Mechanism of 1Cr22Mn16N High Nitrogen Austenitic Stainless Steel Interface Microstructure During Plastic Deformation Bonding[J]. ACTA METALLURGICA SINICA,2024,60(7):915-925. |
| APA | Yang Ruize.,Zhai Ruzong.,Ren Shaofei.,Sun Mingyue.,Xu Bin.,...&Yang Lanlan.(2024).Evolution and Healing Mechanism of 1Cr22Mn16N High Nitrogen Austenitic Stainless Steel Interface Microstructure During Plastic Deformation Bonding.ACTA METALLURGICA SINICA,60(7),915-925. |
| MLA | Yang Ruize,et al."Evolution and Healing Mechanism of 1Cr22Mn16N High Nitrogen Austenitic Stainless Steel Interface Microstructure During Plastic Deformation Bonding".ACTA METALLURGICA SINICA 60.7(2024):915-925. |
入库方式： OAI收割
来源：金属研究所
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