Low cycle fatigue behavior of electron beam welded joint of CLAM steel at room temperature

被引：4
作者：
Cui, Kaixuan [1 ,2 ]
Zhao, Yanyun [1 ]
Zhai, Yutao [1 ]
Huang, Bo [1 ]
Li, Chunjing [1 ]
机构：
[1] Chinese Acad Sci, Inst Nucl Energy Safety Technol, Key Lab Neutron & Radiat Safety, Hefei 230031, Anhui, Peoples R China
[2] Univ Sci & Technol China, Hefei 230027, Anhui, Peoples R China
来源：
FUSION ENGINEERING AND DESIGN | 2019年 / 149卷
基金：
中国国家自然科学基金;
关键词：
CLAM steel; Electron beam welded joint; Low cycle fatigue; Crack propagation; Fracture; CRACK GROWTH-BEHAVIOR; MARTENSITIC STEEL; MECHANICAL-PROPERTIES; MICROSTRUCTURE; DEFORMATION;
D O I：
10.1016/j.fusengdes.2019.111297
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The low cycle fatigue (LCF) property of welded joint is a key issue of fusion reactor blanket safety. In this study, LCF behavior of China low activation martensitic (CLAM) steel joint welded by electron beam was investigated under different strain amplitudes. The experimental results showed that the LCF life of the welded joint was lower than that of the base metal. Both the base metal and the welded joints exhibited continuous cyclic softening. However, the welded joint revealed a lower cyclic peak stress compared to that of the base metal. The welded joint failed in the welded zone at the strain amplitude of 0.3% and failed in the base metal at the strain amplitudes of 0.5%, 0.7% and 1.0%, respectively. The welding inclusion or defect in the surface could be the source of fatigue crack and the fatigue crack propagated in welded metal and heat affected zone with a transgranular fracture mode.
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页数：8
相关论文
共 26 条
[1]   An investigation on high temperature fatigue properties of tempered nuclear-grade deposited weld metals [J].
Cao, X. Y. ;
Zhu, P. ;
Yong, Q. ;
Liu, T. G. ;
Lu, Y. H. ;
Zhao, J. C. ;
Jiang, Y. ;
Shoji, T. .
JOURNAL OF NUCLEAR MATERIALS, 2018, 499 :317-325
[2]  
Chen X., 2011, INT J ADV MANUF TECH, V60, P5
[3]   An overview of the welding technologies of CLAM steels for fusion application [J].
Chen, Xizhang ;
Huang, Yuming ;
Madigan, Bruce ;
Zhou, Jianzhong .
FUSION ENGINEERING AND DESIGN, 2012, 87 (09) :1639-1646
[4]   A comparative study on the cyclic plasticity and fatigue failure behavior of different subzones in CrNiMoV steel welded joint [J].
Guo, Su-Juan ;
Wang, Run-Zi ;
Chen, Haofeng ;
Xuan, Fu-Zhen .
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2019, 150 :66-78
[5]   Nanoscopic measurement of local plastic deformation for a tempered martensitic steel by atomic force microscopy [J].
Hayakawa, M ;
Matsuoka, S ;
Furuya, Y .
MATERIALS LETTERS, 2003, 57 (20) :3037-3042
[6]   Microstructure evolution in CLAM steel under low cycle fatigue [J].
Hu, Xue ;
Huang, Lixin ;
Yan, Wei ;
Wang, Wei ;
Sha, Wei ;
Shan, Yiyin ;
Yang, Ke .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 607 :356-359
[7]   Microstructure and mechanical properties of China low activation martensitic steel joint by TIG multi-pass welding with a new filler wire [J].
Huang, Bo ;
Zhang, Junyu ;
Wu, Qingsheng .
JOURNAL OF NUCLEAR MATERIALS, 2017, 490 :115-124
[8]   Recent progress of R&D activities on reduced activation ferritic/martensitic steels [J].
Huang, Q. ;
Baluc, N. ;
Dai, Y. ;
Jitsukawa, S. ;
Kimura, A. ;
Konys, J. ;
Kurtz, R. J. ;
Lindau, R. ;
Muroga, T. ;
Odette, G. R. ;
Raj, B. ;
Stoller, R. E. ;
Tan, L. ;
Tanigawa, H. ;
Tavassoli, A. -A. F. ;
Yamamoto, T. ;
Wan, F. ;
Wu, Y. .
JOURNAL OF NUCLEAR MATERIALS, 2013, 442 (1-3) :S2-S8
[9]   Status and improvement of CLAM for nuclear application [J].
Huang, Qunying .
NUCLEAR FUSION, 2017, 57 (08)
[10]   Progress in development of CLAM steel and fabrication of small TBM in China [J].
Huang, Qunying ;
Li, Chunjing ;
Wu, Qingsheng ;
Liu, Shaojun ;
Gao, Sheng ;
Guo, Zhihui ;
Yan, Zilin ;
Huang, Bo ;
Song, Yong ;
Zhu, Zhiqiang ;
Chen, Yaping ;
Ling, Xinxhen ;
Wu, Yican .
JOURNAL OF NUCLEAR MATERIALS, 2011, 417 (1-3) :85-88
123