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Influence of temperature on the low-cycle fatigue properties of compacted graphite iron
Qin, Y.1,2; Pang, J. C.1; Li, S. X.1; Zhang, M. X.1; Zhang, Z. F.1
Corresponding AuthorPang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.()
2018-12-01
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
ISSN0142-1123
Volume117Pages:450-460
AbstractStrain-controlled low-cycle fatigue (LCF) tests at a fairly high strain rate were performed on as-cast compacted graphite iron (CGI) controlled with total strain amplitude at 25, 400 and 500 degrees C. The results show that CGI has the longest fatigue life, smallest stable hysteresis loop area at 400 degrees C. The reason is that the effective bearing size of the ferrite increases from 25 degrees C to 400 degrees C because slip deformation is retarded by carbon atom diffusion and carbide formation, and decreases from 400 degrees C to 500 degrees C because of the appearance of the ferrite grain boundary sliding. That effect of temperature is associated with the elastic strain amplitude instead of the plastic strain or stress amplitudes in macroscope. Finally the corresponding improvement suggestions based on these were also proposed.
KeywordCompacted graphite iron Low-cycle fatigue Temperature Damage mechanism Life prediction model
Funding OrganizationNational Natural Science Foundation of China (NSFC)
DOI10.1016/j.ijfatigue.2018.08.031
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[51331007]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS IDWOS:000449240200039
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/130055
Collection中国科学院金属研究所
Corresponding AuthorPang, J. C.; Zhang, Z. F.
Affiliation1.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Div, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
2.Shougang Grp Co Ltd, Res Inst Technol, 69 Yangzhuang Rd, Beijing 100041, Peoples R China
Recommended Citation
GB/T 7714
Qin, Y.,Pang, J. C.,Li, S. X.,et al. Influence of temperature on the low-cycle fatigue properties of compacted graphite iron[J]. INTERNATIONAL JOURNAL OF FATIGUE,2018,117:450-460.
APA Qin, Y.,Pang, J. C.,Li, S. X.,Zhang, M. X.,&Zhang, Z. F..(2018).Influence of temperature on the low-cycle fatigue properties of compacted graphite iron.INTERNATIONAL JOURNAL OF FATIGUE,117,450-460.
MLA Qin, Y.,et al."Influence of temperature on the low-cycle fatigue properties of compacted graphite iron".INTERNATIONAL JOURNAL OF FATIGUE 117(2018):450-460.
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