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Microscopic characterization on low cycle fatigue behavior at room temperature of Zircaloy-4 alloy with recrystallized microstructure
Han, Fuzhou; Liu, Chengze; Yuan, Fusen; Zhang, Yingdong; Ali, Muhammad; Gu, Hengfei; Li, Geping
2019-03-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume778Pages:318-326
AbstractLow cycle fatigue (LCF) tests, with the total strain amplitude (Delta epsilon t/2) in the range of +/- (0.5-3.0%), were employed at room temperature on Zircaloy-4 (Zr-4) alloy with recrystallized microstructure, aiming to investigate its fatigue life, fatigue crack initiation and propagation mechanisms. Results indicated that the fatigue behavior of Zr-4 alloy followed Coffin-Mason relation with fatigue ductility exponent of 0.2426. Fractographic investigation of all mechanically tested specimens revealed that the fatigue specimen surface is the preferential crack initiation place. SEM observation on the crack propagation regions of fatigue specimens showed that a large number of fatigue striations distributed in the crack propagation regions. Further detailed investigation revealed that micro-crack growth rates can be quantitatively evaluated in terms of strain amplitude. (C) 2018 Elsevier B.V. All rights reserved.
KeywordZircaloy-4 LCF Crack initiation Crack propagation Behavior
Indexed BySCI
Language英语
WOS IDWOS:000455179500039
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81269
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Han, Fuzhou,Liu, Chengze,Yuan, Fusen,et al. Microscopic characterization on low cycle fatigue behavior at room temperature of Zircaloy-4 alloy with recrystallized microstructure[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,778:318-326.
APA Han, Fuzhou.,Liu, Chengze.,Yuan, Fusen.,Zhang, Yingdong.,Ali, Muhammad.,...&Li, Geping.(2019).Microscopic characterization on low cycle fatigue behavior at room temperature of Zircaloy-4 alloy with recrystallized microstructure.JOURNAL OF ALLOYS AND COMPOUNDS,778,318-326.
MLA Han, Fuzhou,et al."Microscopic characterization on low cycle fatigue behavior at room temperature of Zircaloy-4 alloy with recrystallized microstructure".JOURNAL OF ALLOYS AND COMPOUNDS 778(2019):318-326.
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