Building height-related creep properties of Inconel 718 superalloy fabricated by laser powder bed fusion

doi:10.1016/j.msea.2022.143861

IMR OpenIR

	Building height-related creep properties of Inconel 718 superalloy fabricated by laser powder bed fusion
	Wang, Y. C.1,2; Wang, L. Y.1; Zhang, B.3; Song, Z. M.1; Luo, X. M.1; Zhang, G. P.1
通讯作者	Zhang, G. P.(gpzhang@imr.ac.cn)
	2022-09-27
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	854 页码:12
摘要	The building height-dependent creep properties and microstructures of laser powder bed fusion-fabricated Inconel 718 superalloy were investigated. Creep specimens taken from the as-fabricated plate component at different building heights were tested along the building direction at 650 degrees C. The results show that under the same heat treatment condition, the recrystallization degree of the specimens taken from the bottom, middle and top of the Inconel 718 plate component differs widely due to the differences in the dislocation density and the texture intensity along the building direction. The bottom specimen exhibited a high recrystallization degree and thus had the longest creep life. Such excellent creep properties of the bottom specimen are mainly attributed to the lower dislocation density and the higher Taylor factor, which cause the lower creep rate, and the lower grain boundary volume fraction, thus reducing the void nucleation sites. The present findings reveal that the impact of the building height-dependent creep performance on the overall service reliability should be considered comprehensively in the subsequent geometrical design of the laser powder bed fusion-fabricated complex structural components.
关键词	Superalloy Laser powder bed fusion Creep properties Recrystallization
资助者	National Natural Science Foundation of China (NSFC) ; Fundamental research project of Shenyang National Laboratory for Materials Science
DOI	10.1016/j.msea.2022.143861
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[52171128] ; National Natural Science Foundation of China (NSFC)[51771207] ; Fundamental research project of Shenyang National Laboratory for Materials Science[L2019R18]
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:000863125600003
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：4[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/321006/175920
专题	中国科学院金属研究所
通讯作者	Zhang, G. P.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Wang, Y. C.,Wang, L. Y.,Zhang, B.,et al. Building height-related creep properties of Inconel 718 superalloy fabricated by laser powder bed fusion[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,854:12.
APA	Wang, Y. C.,Wang, L. Y.,Zhang, B.,Song, Z. M.,Luo, X. M.,&Zhang, G. P..(2022).Building height-related creep properties of Inconel 718 superalloy fabricated by laser powder bed fusion.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,854,12.
MLA	Wang, Y. C.,et al."Building height-related creep properties of Inconel 718 superalloy fabricated by laser powder bed fusion".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 854(2022):12.