Effect of thermal aging on the low cycle fatigue behavior of Z3CN20.09M stainless steel in high-temperature pressurized water

被引：4
作者：
Qiao, Yufei [1 ,2 ]
Zheng, Hui [3 ]
Tan, Jibo [1 ]
Yang, Shuangliang [3 ]
Zhang, Ziyu [1 ]
Li, Jie [3 ]
Wu, Xinqiang [1 ]
Ke, Wei [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Liaoning Key Lab Safety & Assessment Tech Nucl Mat, Shenyang 110016, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
[3] State Nucl Power Plant Serv Co, Shanghai 200233, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 229卷
关键词：
Stainless steel; Thermal aging; Corrosion fatigue; Ferrite; High temperature corrosion; ENVIRONMENTALLY ASSISTED CRACKING; CORROSION-FATIGUE; DELTA-FERRITE; MECHANICAL-PROPERTIES; FRACTURE-TOUGHNESS; G-PHASE; EMBRITTLEMENT; INITIATION; WELD; CF3;
D O I：
10.1016/j.corsci.2024.111869
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of thermal aging (0 h- 15,000 h at 400 degrees C) on the low cycle fatigue properties of Z3CN20.09M stainless steel was investigated. The micro-hardness of the ferrite increases with thermal aging time, while that of the austenite is almost unchanged. The fatigue life of Z3CN20.09M stainless steel in high-temperature pressurized water decreases with thermal aging time. The fatigue cracks formed everywhere, mainly including at slip bands in austenite, at the delta/gamma phase boundary and in ferrite. Thermal aging promotes crack initiation and propagation in ferrite. The effect of thermal aging on the fatigue damage process is discussed.
引用
收藏
页数：13
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