Thermal fatigue behavior of the ZGH451 Ni-based superalloy fabricated by direct energy deposition in the temperature range of 900-1100 °C

doi:10.1016/j.jmst.2024.05.036

IMR OpenIR

	Thermal fatigue behavior of the ZGH451 Ni-based superalloy fabricated by direct energy deposition in the temperature range of 900-1100 °C
	Chen, Jiawang 1,2; Song, Wei 1,2; Yang, Yanhong 1; Liang, Jingjing 1; Zhou, Yizhou 1; Sun, Xiaofeng 1; Li, Jinguo 1
通讯作者	Yang, Yanhong(yhyang@imr.ac.cn) ; Liang, Jingjing(jjliang@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn)
	2025-03-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	210 页码:121-137
摘要	In this study, a novel Ni-based superalloy, ZGH451, has been fabricated using direct energy deposition (DED). The thermal fatigue resistance of ZGH451 is systematically evaluated at 900, 1000, and 1100 degrees C, primarily focusing on the crack initiation and propagation behaviors. The results indicate that higher peak temperatures lead to earlier initiation and more rapid propagation of cracks. Cracks are initiated at the defects and grain boundaries in the vicinity of the notch, and different crack propagation mechanisms (gamma' phase slip shearing, gamma' phase distortion shearing, and gamma' phase rafting shearing at 900, 1000, and 1100 degrees C, respectively) are the main reason for the different cracks propagation behaviors under the three temperatures. The main crack propagation paths are oriented at approximately 45 degrees with respect to the build direction, suggesting activation of the {111} <110 > slip system. Additionally, oxidation reduces the matrix strength and passivates the crack tips, leading to varying rates of crack propagation. At elevated temperatures, the synergistic effects of thermal stress and oxidative erosion are found to be the primary damage mechanisms of thermal fatigue. Overall, the proposed ZGH451 superalloy demonstrates exceptional thermal fatigue resistance, providing a crucial experimental reference for thermal fatigue in additively manufactured superalloys. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Direct energy deposition Thermal fatigue Crack initiation and propagation Ni-based superalloy
资助者	Defense Indus-trial Technology Development Program ; National Key R&D Program of China ; Science Center for Gas Turbine Project ; National Science and Technology Major Project
DOI	10.1016/j.jmst.2024.05.036
收录类别	SCI
语种	英语
资助项目	Defense Indus-trial Technology Development Program[JCKY2020130C024] ; National Key R&D Program of China[2021YFB3702503] ; Science Center for Gas Turbine Project[P2022-C-IV -0 02-0 01] ; National Science and Technology Major Project[Y2019-VII-0011-0151]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001352396800001
出版者	ELSEVIER
引用统计	被引频次：1[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/321006/191300
专题	中国科学院金属研究所
通讯作者	Yang, Yanhong; Liang, Jingjing; Li, Jinguo
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Superalloys Div, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jiawang,Song, Wei,Yang, Yanhong,et al. Thermal fatigue behavior of the ZGH451 Ni-based superalloy fabricated by direct energy deposition in the temperature range of 900-1100 °C[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2025,210:121-137.
APA	Chen, Jiawang.,Song, Wei.,Yang, Yanhong.,Liang, Jingjing.,Zhou, Yizhou.,...&Li, Jinguo.(2025).Thermal fatigue behavior of the ZGH451 Ni-based superalloy fabricated by direct energy deposition in the temperature range of 900-1100 °C.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,210,121-137.
MLA	Chen, Jiawang,et al."Thermal fatigue behavior of the ZGH451 Ni-based superalloy fabricated by direct energy deposition in the temperature range of 900-1100 °C".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 210(2025):121-137.