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

doi:10.1016/j.msea.2022.142716

IMR OpenIR

	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
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)
	2022-03-02
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	836 页码:11
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.
关键词	Selective laser melting Inconel 718 Elevated temperature fatigue Damage mechanism Fatigue strength prediction
资助者	National Natural Science Foundation of China (NSFC) ; Natural Science Foun-dation of Liaoning Province
DOI	10.1016/j.msea.2022.142716
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)[52130002] ; Natural Science Foun-dation of Liaoning Province[20180550880]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000761748800002
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：29[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/321006/173402
专题	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.