| Fatigue model of domestic 316LN steel in simulated primary coolant environment of CAP1400 | |
Zhong,Weihua; Qian GA(钱桂安) ; Tong,Zhenfeng; Wu,Wenwang; Zhu,ShunPeng; Wang,Chenglong
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| Source Publication | INTERNATIONAL JOURNAL OF FATIGUE |
| 2020 | |
| Pages | 105297 |
| Conference Name | 19th International Colloquium on Mechanical Fatigue of Metals (ICMFM) |
| Conference Date | SEP 05-07, 2018 |
| Conference Place | Univ Porto, Fac Engn, Porto, PORTUGAL |
| Abstract | Fatigue tests of domestic 316LN were carried out in the simulated primary coolant environment of CAP1400 (the advanced 3rd generation nuclear power plants developed in China). Effects of temperature, strain rate and dissolved oxygen (DO) on fatigue life were analyzed. Based on the results, a fatigue model was developed. Fatigue life in primary coolant environment increases logarithmically as the temperature decreases from 321 degrees C to 150 degrees C. When the temperature decreases to 150 degrees C, fatigue life in primary coolant environment is very close to that in air environment. Fatigue life increases as the strain rate increases from 0.004%/s to 1%/s. After the strain increases to more than 0.4%/s, fatigue life in primary coolant environment is very close to that in air environment. Effect of DO on fatigue life in primary coolant environment is not obvious in the DO range of 0.005 ppm to 8 ppm. Compared with NUREG6909 model, the present fatigue model is more accurate in lifetime prediction of domestic 316LN. |
| Keyword | Primary coolant pipe Low cycle fatigue Corrosion fatigue Fatigue model Environmental fatigue life |
| WOS ID | WOS:000491639300029 |
| Funding Organization | National Natural Science Foundation of China [11872364]; CAS Pioneer Hundred Talents Program |
| URL | 查看原文 |
| Indexed By | CPCI-S |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90525 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.China Inst Atom Energy, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing, Peoples R China 3.Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China 4.Univ Elect Sci & Technol China, Sch Mech & Elect Engn, Chengdu 611731, Sichuan, Peoples R China |
| Recommended Citation GB/T 7714 | Zhong,Weihua,Qian GA,Tong,Zhenfeng,et al. Fatigue model of domestic 316LN steel in simulated primary coolant environment of CAP1400[C]INTERNATIONAL JOURNAL OF FATIGUE,2020:105297. |
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| File Name/Size | DocType | Version | Access | License | ||
| CpA2022F036.pdf（716KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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