Anisotropy of Elasticity of a Ni Base Single Crystal Superalloy

doi:10.11900/0412.1961.2019.00355

CORC > 金属研究所 > 中国科学院金属研究所

	Anisotropy of Elasticity of a Ni Base Single Crystal Superalloy
	Liu Jinlai; Ye Lihua; Zhou Yizhou; Li Jinguo; Sun Xiaofeng
刊名	ACTA METALLURGICA SINICA
	2020-06-01
卷号	56 期号:6 页码:855-862
关键词	single crystal superalloy stiffness constant anisotropy modulus crystal orientation
ISSN号	0412-1961
DOI	10.11900/0412.1961.2019.00355
通讯作者	Liu Jinlai(jlliu@imr.ac.cn)
英文摘要	The anisotropy of elasticity of single crystal superalloy is essential to understand its mechanical behavior, e.g. calculating the vibration frequency of turbine blade and avoiding resonance during operation. However, it's difficult to calculate the stiffness constants of single crystal superalloy by theory methods. In this work, one simple experimental method is employed to determine the stiffness constants. The slabs of a first generation single crystal superalloy in two orientations < 001 > < 100 > and < 011 > < 110 > are employed to measure the Young's modulus and shear modulus of this alloy. The Young's modulus and shear modulus of the first specimen and the shear modulus of the second specimen are 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 are calculated from the measured moduli. The Young's modulus and shear modulus in any orientation can be calculated based on the stiffness constants. Further, the 3D distribution map of Young's modulus and maximum and minimum of shear modulus related to primary orientation can be drawn, so the distribution feature of modulus in 3D space can be acquired conveniently. When the primary orientations are along < 001 > and < 111 >, the shear modulus in plane is isotropy with secondary orientation. When the primary orientation is along < 011 >, the shear modulus demonstrates significant anisotropy with secondary orientation, the shear modulus reaches minimum with secondary orientation < 110 > while the maximum is obtained in secondary orientation < 100 >.
资助项目	National Science and Technology Major Project[2017-VI-0002-0072] ; National Key Research and Development Program of China[2017YFA0700704] ; National Natural Science Foundation of China[51971214]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000546975500006
资助机构	National Science and Technology Major Project ; National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139619]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu Jinlai
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu Jinlai,Ye Lihua,Zhou Yizhou,et al. Anisotropy of Elasticity of a Ni Base Single Crystal Superalloy[J]. ACTA METALLURGICA SINICA,2020,56(6):855-862.
APA	Liu Jinlai,Ye Lihua,Zhou Yizhou,Li Jinguo,&Sun Xiaofeng.(2020).Anisotropy of Elasticity of a Ni Base Single Crystal Superalloy.ACTA METALLURGICA SINICA,56(6),855-862.
MLA	Liu Jinlai,et al."Anisotropy of Elasticity of a Ni Base Single Crystal Superalloy".ACTA METALLURGICA SINICA 56.6(2020):855-862.