Anisotropy of Poisson's Ratio of a Ni-Based Single Crystal Superalloy

IMR OpenIR

	Anisotropy of Poisson's Ratio of a Ni-Based Single Crystal Superalloy
	Liu Jinlai; Meng Jie; Li Jinguo
通讯作者	Liu Jinlai(jlliu@imr.ac.cn)
	2023-05-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	52 期号:5 页码:1970-1976
摘要	The anisotropy of Poisson's ratio of a single crystal superalloy is essential to understand its mechanical behavior, e.g. calculating the contact stress between blade tenon and turbine disc. However, it is difficult to determine the Poisson's ratio of single crystal superalloy of every orientation. In this research, one simple experimental method was employed to measure the stiffness constants and then the Poisson's ratio of different orientations was calculated. The slabs of a third generation single crystal superalloy in two orientations <001>< 100> and <011><110> were prepared by seeding technique in Bridgman method. The Young's modulus and shear modulus of the first specimen and the shear modulus of the second specimen were measured by resonance method from room temperature to 1100 degrees C. The three stiffness constants C-11, C-12 and C-44 of this superalloy were calculated from the measured moduli. The Poisson's ratio in any orientation can be calculated based on the stiffness constants. Further, the 3D distribution map of maximum and minimum of Poisson's ratio of every primary orientation can be drawn, so the distribution feature of Poisson's ratio in 3D space can be acquired conveniently. When the primary orientations are along <001> and <111>, the Poisson's ratio in plane is isotropy with secondary orientation. When the primary orientation is along <011>, the Poisson's ratio demonstrates significant anisotropy with secondary orientation, the Poisson's ratio reach minimum with secondary orientation <110> with negative value, while maximum is obtained in secondary orientation <100>.
关键词	single crystal superalloy stiffness constant anisotropy Poisson's ratio crystal orientation
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001146290600013
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
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/321006/183659
专题	中国科学院金属研究所
通讯作者	Liu Jinlai
作者单位	Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu Jinlai,Meng Jie,Li Jinguo. Anisotropy of Poisson's Ratio of a Ni-Based Single Crystal Superalloy[J]. RARE METAL MATERIALS AND ENGINEERING,2023,52(5):1970-1976.
APA	Liu Jinlai,Meng Jie,&Li Jinguo.(2023).Anisotropy of Poisson's Ratio of a Ni-Based Single Crystal Superalloy.RARE METAL MATERIALS AND ENGINEERING,52(5),1970-1976.
MLA	Liu Jinlai,et al."Anisotropy of Poisson's Ratio of a Ni-Based Single Crystal Superalloy".RARE METAL MATERIALS AND ENGINEERING 52.5(2023):1970-1976.