Evaluation of fatigue crack propagation behavior of 316LN TIG weldments at liquid helium temperature
文献类型：期刊论文
| 作者 | Huang, Chuanjun2; Xin, Jijun1,3; Zhang, Hengcheng2; Wei, Jing3 ; Huang, Rongjin2; Xu, Dong2; Song, Yuntao3; Li, Laifeng2
|
| 刊名 | CRYOGENICS
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 110 |
| ISSN号 | 0011-2275 |
| 关键词 | 316LN TIG weldment Post weld heat treatment Fatigue crack propagation Strain-induced martensite transformation Cryogenic |
| DOI | 10.1016/j.cryogenics.2020.103161 |
| 通讯作者 | Xin, Jijun(xinjijun@sslab.org.cn) ; Li, Laifeng(laifengli@mail.ipc.ac.cn) |
| 英文摘要 | In the present work, fatigue crack propagation behavior of 316LN tungsten inert gas (TIG) weldment and weldment with post weld heat treatment (PWHT) was investigated at liquid helium temperature. Results indicates that the weldment with PWHT results in the highest fatigue crack propagation resistance, whereas the base material demonstrates the lowest fatigue crack propagation resistance. Microstructure evolution reveals that the fatigue crack propagation is characterized as transgranular fracture for the base material as well as the as-welded weldments and the weldment with PWHT. Moreover, the crack propagation path of the weldments shows a zigzag crack extension, especially for the weldment with PWHT, whereas the crack extension of the base material is relative straight. Electron backscattered diffraction reveals more amount of strain-induced martensite near the crack tip in the base material compared to in the as-welded weldment and in the weldment with PWHT, which is considered to be a crucial factor in the fatigue crack propagation behavior at cryogenic temperature. |
| WOS关键词 | MARTENSITIC-TRANSFORMATION ; STAINLESS-STEELS ; GROWTH ; MICROSTRUCTURE ; AUSTENITE ; EVOLUTION ; FRACTURE ; ENERGY ; GAMMA |
| 资助项目 | National Key R&D Program of China[2017YFE0301405] ; National Key R&D Program of China[2017YFE0301504] ; National Natural Science Foundation of China[51877209] |
| WOS研究方向 | Thermodynamics ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000571177600008 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/104184]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Xin, Jijun; Li, Laifeng |
| 作者单位 | 1.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China 2.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Cryogen, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Chuanjun,Xin, Jijun,Zhang, Hengcheng,et al. Evaluation of fatigue crack propagation behavior of 316LN TIG weldments at liquid helium temperature[J]. CRYOGENICS,2020,110. |
| APA | Huang, Chuanjun.,Xin, Jijun.,Zhang, Hengcheng.,Wei, Jing.,Huang, Rongjin.,...&Li, Laifeng.(2020).Evaluation of fatigue crack propagation behavior of 316LN TIG weldments at liquid helium temperature.CRYOGENICS,110. |
| MLA | Huang, Chuanjun,et al."Evaluation of fatigue crack propagation behavior of 316LN TIG weldments at liquid helium temperature".CRYOGENICS 110(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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