Effects of stabilized heat treatment on stress rupture properties of high Si-bearing austenitic stainless steel weld metal
文献类型：期刊论文
| 作者 | Chen, Yakui1,2; Wu, Dong1,3; Lu, Shanping1 |
| 刊名 | INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
 |
| 出版日期 | 2024-10-01 |
| 卷号 | 211页码:10 |
| 关键词 | Austenitic stainless steel weld metal delta-ferrite Stabilized heat treatment Stress rupture properties |
| ISSN号 | 0308-0161 |
| DOI | 10.1016/j.ijpvp.2024.105300 |
| 通讯作者 | Wu, Dong(wudong@imr.ac.cn) ; Lu, Shanping(shplu@imr.ac.cn) |
| 英文摘要 | The 15Cr-9Ni-Nb austenitic stainless steel weld metal with a Si content of 3.5 wt% was prepared via gas tungsten arc welding and then held at 900 degrees C for 3 h for the stabilized heat treatment (SHT). The stress rupture properties of the as-welded (AW) and SHT weld metals at 550 degrees C were evaluated via the Larson-Miller parameter. The microstructure evolution was discussed during the 550 degrees C stress rupture process. The coarse a-phase and relatively fine G-phase formed on the S-ferrite during aging at 550 degrees C. In the AW weld metal, the continuous S-ferrite with a large amount of coarse a-phase led to the formation and expansion of cracks during the stress rupture process, which accelerated the eventual rupture and damaged the stress rupture properties. The SHT decreased the S-ferrite content and formed a large amount of nanoscale NbC precipitated in the matrix. The decreased S-ferrite content avoided the rapid formation and expansion of cracks and the nanoscale NbC blocked the dislocation movement during the stress rupture process, which improved the stress rupture properties. |
| 资助项目 | National Key Research and Development Program of China[2018YFA0702902] ; Innovation Project of Shenyang National Laboratory for Materials Science (SYNL-2022) ; China Institute of Atomic Energy[E141L803J1] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001312886400001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Key Research and Development Program of China ; Innovation Project of Shenyang National Laboratory for Materials Science (SYNL-2022) ; China Institute of Atomic Energy |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wu, Dong; 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 | Chen, Yakui,Wu, Dong,Lu, Shanping. Effects of stabilized heat treatment on stress rupture properties of high Si-bearing austenitic stainless steel weld metal[J]. INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING,2024,211:10. |
| APA | Chen, Yakui,Wu, Dong,&Lu, Shanping.(2024).Effects of stabilized heat treatment on stress rupture properties of high Si-bearing austenitic stainless steel weld metal.INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING,211,10. |
| MLA | Chen, Yakui,et al."Effects of stabilized heat treatment on stress rupture properties of high Si-bearing austenitic stainless steel weld metal".INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING 211(2024):10. |
入库方式： OAI收割
来源：金属研究所
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