Influence of temperature on the low-cycle fatigue properties of compacted graphite iron

doi:10.1016/j.ijfatigue.2018.08.031

IMR OpenIR

	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
通讯作者	Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.()
	2018-12-01
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
ISSN	0142-1123
卷号	117 页码:450-460
摘要	Strain-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.
关键词	Compacted graphite iron Low-cycle fatigue Temperature Damage mechanism Life prediction model
资助者	National Natural Science Foundation of China (NSFC)
DOI	10.1016/j.ijfatigue.2018.08.031
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[51331007]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000449240200039
出版者	ELSEVIER SCI LTD
引用统计	被引频次：13[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/321006/130055
专题	中国科学院金属研究所
通讯作者	Pang, J. C.; Zhang, Z. F.
作者单位	1.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
推荐引用方式 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.