High-cycle fatigue properties prediction and damage mechanisms of RuT400 compacted graphite iron at different temperatures

doi:10.1016/j.msea.2019.138248

IMR OpenIR

	High-cycle fatigue properties prediction and damage mechanisms of RuT400 compacted graphite iron at different temperatures
	Liu, Qingyi 1; Zhu, Gang 2,3; Pang, Jianchao 2; Liu, Feng 3; Li, Shouxin 2; Guo, Changliang 1; Jiang, Ailong 1; Zhang, Zhefeng 2
通讯作者	Pang, Jianchao(jcpang@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
	2019-09-09
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	764 页码:10
摘要	As 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.
关键词	Compacted graphite iron High-cycle fatigue Damage mechanism Prediction method
资助者	Science Fund of State Key Laboratory of Engine Reliability (SKLER) ; National Nature Science Foundation of China (NSCF)
DOI	10.1016/j.msea.2019.138248
收录类别	SCI
语种	英语
资助项目	Science Fund of State Key Laboratory of Engine Reliability (SKLER)[201711] ; National Nature Science Foundation of China (NSCF)[51871224]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000486360100053
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/135450
专题	中国科学院金属研究所
通讯作者	Pang, Jianchao; Zhang, Zhefeng
作者单位	1.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
推荐引用方式 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.