The high cycle fatigue, deformation and fracture of compacted graphite iron: Influence of temperature

doi:10.1016/j.msea.2018.01.025

CORC > 金属研究所 > 中国科学院金属研究所

	The high cycle fatigue, deformation and fracture of compacted graphite iron: Influence of temperature
	Zou, C. L.2,3; Pang, J. C.3; Zhang, M. X.3; Qiu, Y.3; Li, S. X.3; Chen, L. J.2; Li, J. P.1; Yang, Z.1; Zhang, Z. F.3
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2018-05-02
卷号	724 页码:606-615
关键词	Compacted graphite iron Testing temperature High-cycle fatigue property Oxidation effect Dynamic strain ageing
ISSN号	0921-5093
DOI	10.1016/j.msea.2018.01.025
通讯作者	Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
英文摘要	The microstructure, tensile strength, high-cycle fatigue property and corresponding damage mechanisms of compacted graphite iron at room temperature (25 degrees C), 400 degrees C and 500 degrees C, were investigated. It is found that the fatigue strength increases at first and then decreases with the increase of the testing temperature. At 25 degrees C, the fatigue crack mainly initiates from graphite debonding and propagates along the graphite clusters. At 400 degrees C, the fatigue crack initiation is influenced by oxidation; the fatigue strength may be improved by dynamic strain aging. At 500 degrees C, the oxidation becomes more serious and the oxide layer accelerates the crack to propagate along the matrix. At the same time, the phenomenon of grain boundary softening, one of the reasons resulting in the reduction of fatigue strength, appears. Then, the model of damage mechanism was proposed according to the propagation behavior of fatigue crack at high temperatures, and the quantitative relationship between the fatigue strength and the ratio of the interphase corrosion depth to the critical crack length was established. This investigation may enrich the fundamental understanding on the damage mechanism of compacted graphite iron.
资助项目	National Natural Science Foundation of China (NSFC)[51331007]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000432640000066
资助机构	National Natural Science Foundation of China (NSFC)
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/128251]
专题	金属研究所_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.Xian Technol Univ, Sch Mat & Chem Engn, 2 Xuefuzhong Rd, Xian 710021, Shaanxi, Peoples R China 2.Shenyang Univ Technol, Sch Mat Sci & Engn, 111 Shenliao Rd, Shenyang 110870, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zou, C. L.,Pang, J. C.,Zhang, M. X.,et al. The high cycle fatigue, deformation and fracture of compacted graphite iron: Influence of temperature[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,724:606-615.
APA	Zou, C. L..,Pang, J. C..,Zhang, M. X..,Qiu, Y..,Li, S. X..,...&Zhang, Z. F..(2018).The high cycle fatigue, deformation and fracture of compacted graphite iron: Influence of temperature.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,724,606-615.
MLA	Zou, C. L.,et al."The high cycle fatigue, deformation and fracture of compacted graphite iron: Influence of temperature".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 724(2018):606-615.