Low cycle fatigue properties and life prediction of selective laser melted Inconel 718 at different temperatures

doi:10.1016/j.jmrt.2025.01.139

IMR OpenIR

	Low cycle fatigue properties and life prediction of selective laser melted Inconel 718 at different temperatures
	Wang, N.1,2; Li, W. B.1,3; Zou, C. L.1; Pang, J. C.1; Chen, L. J.2; Gao, C.1; Zheng, S. J.4; Li, S. X.1; Zhang, H.3; Zhang, Z. F.1
通讯作者	Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
	2025-03-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	35 页码:1829-1841
摘要	According to the actual service condition of the aeroengine, Inconel 718 produced by selective laser melted (SLM) was selected to perform low cycle fatigue (LCF) tests at 25, 450 and 650 degrees C, with a focus on the influence of temperature on fatigue properties. The results show that the cyclic stress decreases with the loading except for some cases. Moreover, as the strain amplitude and temperature rise, the degree of cyclic softening increases. Compared with 25 degrees C and 450 degrees C, the defects produced by SLM process only have little effect at 650 degrees C, but the cracks show the characteristics of transgranular fracture at all three temperatures. The deformation mode of SLM Inconel 718 at lower temperature is mainly single-slip, and shows the characteristics of multi-slip deformation with the increase of temperature. After evaluating, predicting and comparing LCF life, the hysteretic energy model related to temperature is proven to an effective approach. Furthermore, the damage mechanisms at 25, 450 and 650 degrees C can be explained by combining the corresponding parameters, which provides a clue for optimizing fatigue property of SLM Inconel 718.
关键词	Inconel 718 Selective laser melting Low-cycle fatigue Elevated temperatures Fatigue life prediction
资助者	National Natural Science Foundation of China (NSFC) ; Science Center for Gas Turbine Project
DOI	10.1016/j.jmrt.2025.01.139
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[U24A2037] ; National Natural Science Foundation of China (NSFC)[52401181] ; National Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[52130002] ; National Natural Science Foundation of China (NSFC)[52321001] ; Science Center for Gas Turbine Project[P2022-C-IV-001-001]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001409922300001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180534
专题	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.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 3.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China 4.Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin Key Lab Mat Laminating Fabricat & Interfac, Tianjin 300130, Peoples R China
推荐引用方式 GB/T 7714	Wang, N.,Li, W. B.,Zou, C. L.,et al. Low cycle fatigue properties and life prediction of selective laser melted Inconel 718 at different temperatures[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2025,35:1829-1841.
APA	Wang, N..,Li, W. B..,Zou, C. L..,Pang, J. C..,Chen, L. J..,...&Zhang, Z. F..(2025).Low cycle fatigue properties and life prediction of selective laser melted Inconel 718 at different temperatures.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,35,1829-1841.
MLA	Wang, N.,et al."Low cycle fatigue properties and life prediction of selective laser melted Inconel 718 at different temperatures".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 35(2025):1829-1841.