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Damage mechanism and fatigue strength prediction of compacted graphite iron with different microstructures
Chen, Y.1,2; Pang, J. C.1; Li, S. X.1; Zou, C. L.1; Zhang, Z. F.1,2
Corresponding AuthorPang, J. C.() ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
2022-11-01
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
ISSN0142-1123
Volume164Pages:14
AbstractThe effects of microstructures on the tensile properties, high-cycle fatigue properties and corresponding damage mechanism of compacted graphite iron (CGI) were investigated. The results show that with the increase of pearlite content, both the tensile strength and fatigue strength show an upward trend. Fatigue cracks usually initiate at the graphite/ferrite interface and gradually propagate into the matrix under the high-frequency cyclic stress. The adjacent cracks bridge to form the main crack, leading to the final fracture. Based on the pearlite content and tensile strength, a new model for predicting the fatigue strength of CGI with high accuracy was proposed.
KeywordCompacted graphite iron Pearlite content Fatigue strength Damage mechanism
Funding OrganizationNational Natural Science Foundation of China (NSFC)
DOI10.1016/j.ijfatigue.2022.107126
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[52130002]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS IDWOS:000835119500002
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/174606
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, Shi changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Zhengzhou Univ, Henan Inst Adv Technol, 97 Wenhua Rd, Zhengzhou 450001, Peoples R China
Recommended Citation
GB/T 7714
Chen, Y.,Pang, J. C.,Li, S. X.,et al. Damage mechanism and fatigue strength prediction of compacted graphite iron with different microstructures[J]. INTERNATIONAL JOURNAL OF FATIGUE,2022,164:14.
APA Chen, Y.,Pang, J. C.,Li, S. X.,Zou, C. L.,&Zhang, Z. F..(2022).Damage mechanism and fatigue strength prediction of compacted graphite iron with different microstructures.INTERNATIONAL JOURNAL OF FATIGUE,164,14.
MLA Chen, Y.,et al."Damage mechanism and fatigue strength prediction of compacted graphite iron with different microstructures".INTERNATIONAL JOURNAL OF FATIGUE 164(2022):14.
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