Low-Cycle Fatigue Damage Mechanism and Life Prediction of High-Strength Compacted Graphite Cast Iron at Different Temperatures

doi:10.3390/ma17174266

IMR OpenIR

	Low-Cycle Fatigue Damage Mechanism and Life Prediction of High-Strength Compacted Graphite Cast Iron at Different Temperatures
	Wu, Qihua 1; Tan, Bingzhi 2,3,4; Pang, Jianchao 2; Shi, Feng 3,4; Jiang, Ailong 1; Zou, Chenglu 2; Zhang, Yunji 1; Li, Shouxin 2; Zhang, Yanyan 2; Li, Xiaowu 3,4; Zhang, Zhefeng 2
通讯作者	Pang, Jianchao(jcpang@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
	2024-09-01
发表期刊	MATERIALS
卷号	17 期号:17 页码:17
摘要	Tensile and low-cycle fatigue tests of high-strength compacted graphite cast iron (CGI, RuT450) were carried out at 25 degrees C, 400 degrees C, and 500 degrees C, respectively. The results show that with the increase in temperature, the tensile strength decreases slowly and then decreases rapidly. The fatigue life decreases, and the life reduction increases at high temperature and high strain amplitude. The oxide layer appears around the graphite and cracks at high temperature, and the dependence of crack propagation on ferrite gradually decreases. With the increase in strain amplitude, the initial cyclic stress of compacted graphite cast iron increases at three temperatures, and the cyclic hardening phenomenon is obvious. The fatigue life prediction method based on the energy method and damage mechanism for compacted graphite cast iron is summarized and proposed after comparing and analyzing a large amount of fatigue data.
关键词	compacted graphite cast iron microstructures experimental temperature low-cycle fatigue damage mechanism life prediction
资助者	Open project of State Key Laboratory of Engine and Powertrain System ; National Natural Science Foundation of China
DOI	10.3390/ma17174266
收录类别	SCI
语种	英语
资助项目	Open project of State Key Laboratory of Engine and Powertrain System[202101] ; National Natural Science Foundation of China[51871224] ; National Natural Science Foundation of China[52130002] ; National Natural Science Foundation of China[52321001]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001311051000001
出版者	MDPI
引用统计	被引频次：2[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/321006/189854
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 & Powertrain Syst, 197A Fushou East St, Weifang 261061, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Shenyang 110819, Peoples R China 4.Northeastern Univ, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Wu, Qihua,Tan, Bingzhi,Pang, Jianchao,et al. Low-Cycle Fatigue Damage Mechanism and Life Prediction of High-Strength Compacted Graphite Cast Iron at Different Temperatures[J]. MATERIALS,2024,17(17):17.
APA	Wu, Qihua.,Tan, Bingzhi.,Pang, Jianchao.,Shi, Feng.,Jiang, Ailong.,...&Zhang, Zhefeng.(2024).Low-Cycle Fatigue Damage Mechanism and Life Prediction of High-Strength Compacted Graphite Cast Iron at Different Temperatures.MATERIALS,17(17),17.
MLA	Wu, Qihua,et al."Low-Cycle Fatigue Damage Mechanism and Life Prediction of High-Strength Compacted Graphite Cast Iron at Different Temperatures".MATERIALS 17.17(2024):17.