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

文献类型：期刊论文

作者Wu, Qihua1; Tan, Bingzhi2,3,4; Pang, Jianchao2; Shi, Feng3,4; Jiang, Ailong1; Zou, Chenglu2; Zhang, Yunji1; Li, Shouxin2; Zhang, Yanyan2; Li, Xiaowu3,4
刊名MATERIALS
出版日期2024-09-01
卷号17期号:17页码:17
关键词compacted graphite cast iron microstructures experimental temperature low-cycle fatigue damage mechanism life prediction
DOI10.3390/ma17174266
通讯作者Pang, Jianchao(jcpang@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
英文摘要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.
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
语种英语
WOS记录号WOS:001311051000001
出版者MDPI
资助机构Open project of State Key Laboratory of Engine and Powertrain System ; National Natural Science Foundation of China
源URL  
专题金属研究所_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.

入库方式： OAI收割

来源：金属研究所

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