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High-cycle fatigue properties prediction and damage mechanisms of RuT400 compacted graphite iron at different temperatures
Liu, Qingyi1; Zhu, Gang2,3; Pang, Jianchao2; Liu, Feng3; Li, Shouxin2; Guo, Changliang1; Jiang, Ailong1; Zhang, Zhefeng2
Corresponding AuthorPang, Jianchao(jcpang@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
2019-09-09
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume764Pages:10
AbstractAs a new type of cylinder head material, the mechanical properties of RuT400 compacted graphite iron (CGI) are particular critical for its industrial application. In this study, the tensile and high-cycle fatigue (HCF) tests of RuT400 were performed at 25, 300, 400 and 500 degrees C, respectively. Meanwhile, the original microstructure, hardness (HV) and damage features of typical fatigue fractured specimens at each temperature were investigated. It is found that, with the temperature increasing, the tensile and yield strengths decrease slightly first and then rapidly, while, the fatigue strength increases first and then drastically reduces. Several different analyses indicate that the variation of fatigue strength due to the matrix microstructure changing. Besides, a new prediction method of fatigue properties was proposed, it can reasonably predict the HCF properties for CGI at any temperatures. These results will enrich the understanding on the strength improvement of the CGI.
KeywordCompacted graphite iron High-cycle fatigue Damage mechanism Prediction method
Funding OrganizationScience Fund of State Key Laboratory of Engine Reliability (SKLER) ; National Nature Science Foundation of China (NSCF)
DOI10.1016/j.msea.2019.138248
Indexed BySCI
Language英语
Funding ProjectScience Fund of State Key Laboratory of Engine Reliability (SKLER)[201711] ; National Nature Science Foundation of China (NSCF)[51871224]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000486360100053
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/321006/135448
Collection中国科学院金属研究所
Corresponding AuthorPang, Jianchao; Zhang, Zhefeng
Affiliation1.Weichai Power Co Ltd, State Key Lab Engine Reliabil, 197A Fushou East St, Weifang 261061, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Lab, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
3.Liaoning Shihua Univ, Sch Mech Engn, 1 Dandong Rd, Fushun 113001, Peoples R China
Recommended Citation
GB/T 7714
Liu, Qingyi,Zhu, Gang,Pang, Jianchao,et al. High-cycle fatigue properties prediction and damage mechanisms of RuT400 compacted graphite iron at different temperatures[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,764:10.
APA Liu, Qingyi.,Zhu, Gang.,Pang, Jianchao.,Liu, Feng.,Li, Shouxin.,...&Zhang, Zhefeng.(2019).High-cycle fatigue properties prediction and damage mechanisms of RuT400 compacted graphite iron at different temperatures.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,764,10.
MLA Liu, Qingyi,et al."High-cycle fatigue properties prediction and damage mechanisms of RuT400 compacted graphite iron at different temperatures".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 764(2019):10.
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