Effect of temperature on corrosion fatigue behavior of Inconel Alloy 690TT steam generator tube

被引：7
|
作者：
Li, Z. H. [1 ]
Lu, Y. H. [1 ]
You, L. [2 ]
Zhang, X. F. [1 ]
Wang, L. [2 ]
Tian, D. H. [1 ]
Zhang, W. D. [1 ]
Shoji, T. [1 ]
机构：
[1] Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China
[2] State Key Lab Nucl Power Safety Monitoring Technol, Shenzhen 518172, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 227卷
关键词：
Alloy 690TT tube; Corrosion fatigue; Temperature; Crack initiation; Fatigue life; CRACK-GROWTH-BEHAVIOR; LOW-CYCLE FATIGUE; DISSOLVED-OXYGEN; STAINLESS-STEEL; TIN INCLUSION; MECHANISMS;
D O I：
10.1016/j.corsci.2023.111741
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of temperature on corrosion fatigue behavior of actual Alloy 690TT steam generator (SG) tubes in water environments was studied. Results demonstrated that temperature had significant influence on the for-mation and initiation mechanism of persistent slip bands (PSBs), as well as the crack propagation mode and mechanism, in water environment. With the increase of temperature, the corrosion fatigue life of SG tube decreased, more fatigue cracks initiated along the PSBs, and the synergistic effect of slip dissolution and local plasticity accelerated fatigue crack propagation. Then, the evaluation model of temperature on corrosion fatigue life was established.
引用
收藏
页数：12
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