The high-cycle fatigue properties of selective laser melted Inconel 718 at room and elevated temperatures

doi:10.1016/j.msea.2022.142716

CORC > 金属研究所 > 中国科学院金属研究所

	The high-cycle fatigue properties of selective laser melted Inconel 718 at room and elevated temperatures
	Li, W. B.1,2; Pang, J. C.2; Zhang, H.1; Li, S. X.2; Zhang, Z. F.2
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2022-03-02
卷号	836 页码:11
关键词	Selective laser melting Inconel 718 Elevated temperature fatigue Damage mechanism Fatigue strength prediction
ISSN号	0921-5093
DOI	10.1016/j.msea.2022.142716
通讯作者	Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, H.(hzhang@epm.neu.edu.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
英文摘要	Aero-engine turbine disk is always subjected to cyclic loading at room and elevated temperatures. Therefore, as one of the typical high-temperature materials, selective laser melted Inconel 718 superalloy was chosen to perform high-cycle fatigue tests at 25 degrees C, 450 degrees C and 650 degrees C and investigate the effect of temperature on fatigue damage mechanism. The locations of fatigue crack initiation are surface and subsurface defects at room temperature, and become subsurface and internal facets at elevated temperatures. An analyzed stress intensity factor and El-Haddad model were performed to assess the effect of defects on fatigue performance at room temperature. By means of electron back scattered diffraction, the fatigue damage mechanisms at elevated temperatures were elucidated. Based on the general relationship between fatigue and tensile strengths of metallic materials, an accurately quantitative relationship among fatigue strength and temperature was proposed.
资助项目	National Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[52130002] ; Natural Science Foun-dation of Liaoning Province[20180550880]
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:000761748800002
资助机构	National Natural Science Foundation of China (NSFC) ; Natural Science Foun-dation of Liaoning Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173401]
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, H.; Zhang, Z. F.
作者单位	1.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, W. B.,Pang, J. C.,Zhang, H.,et al. The high-cycle fatigue properties of selective laser melted Inconel 718 at room and elevated temperatures[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,836:11.
APA	Li, W. B.,Pang, J. C.,Zhang, H.,Li, S. X.,&Zhang, Z. F..(2022).The high-cycle fatigue properties of selective laser melted Inconel 718 at room and elevated temperatures.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,836,11.
MLA	Li, W. B.,et al."The high-cycle fatigue properties of selective laser melted Inconel 718 at room and elevated temperatures".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 836(2022):11.