Numerical Investigation on Residual Stresses of the Safe-End/Nozzle Dissimilar Metal Welded Joint in CAP1400 Nuclear Power Plants
文献类型：期刊论文
| 作者 | Dong, Wen-Chao2; Gao, Dian-Bao1; Lu, Shan-Ping2 |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 32期号:5页码:618-628 |
| 关键词 | CAP1400 nuclear power plants Nozzle Safe-end Dissimilar metal welding Residual stress |
| ISSN号 | 1006-7191 |
| DOI | 10.1007/s40195-018-0803-8 |
| 通讯作者 | Lu, Shan-Ping(shplu@imr.ac.cn) |
| 英文摘要 | The residual stress evolution in a safe-end/nozzle dissimilar metal welded joint of CAP1400 nuclear power plants was investigated in the manufacturing process by finite element simulation. A finite element model, including cladding, buttering, post-weld heat treatment (PWHT) and dissimilar metal multi-pass welding, is developed based on SYSWELD software to investigate the evolution of residual stress in the aforementioned manufacturing process. The results reveal a large tensile axial residual stress, which exists at the weld zone on the inner surface, leads to a high sensitivity to stress corrosion cracking (SCC). PWHT process before dissimilar metal multi-pass welding process has a great influence on the magnitude and distribution of final axial residual stress. The risk of SCC on the inner surface of the pipe will increase if PWHT process is not taken into account. Therefore, such crucial thermal manufacturing process such as cladding, buttering and post-weld heat treatment, besides the multi-pass welding process, should be considered in the numerical model in order to accurately predict the distribution and the magnitude of the residual stress. |
| 资助项目 | Open-ended Fund of the CAS Key Laboratory of Nuclear Materials and Safety Assessment[2015NMSAKF02] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000463780700009 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 资助机构 | Open-ended Fund of the CAS Key Laboratory of Nuclear Materials and Safety Assessment |
| 源URL | [http://ir.imr.ac.cn/handle/321006/132982]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Lu, Shan-Ping |
| 作者单位 | 1.China First Heavy Ind, Nucl Power & Petrochem Business Grp, Dalian 116113, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Wen-Chao,Gao, Dian-Bao,Lu, Shan-Ping. Numerical Investigation on Residual Stresses of the Safe-End/Nozzle Dissimilar Metal Welded Joint in CAP1400 Nuclear Power Plants[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(5):618-628. |
| APA | Dong, Wen-Chao,Gao, Dian-Bao,&Lu, Shan-Ping.(2019).Numerical Investigation on Residual Stresses of the Safe-End/Nozzle Dissimilar Metal Welded Joint in CAP1400 Nuclear Power Plants.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(5),618-628. |
| MLA | Dong, Wen-Chao,et al."Numerical Investigation on Residual Stresses of the Safe-End/Nozzle Dissimilar Metal Welded Joint in CAP1400 Nuclear Power Plants".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.5(2019):618-628. |
入库方式： OAI收割
来源：金属研究所
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