| Anisotropy of Elasticity of a Ni Base Single Crystal Superalloy | |
| Liu Jinlai; Ye Lihua; Zhou Yizhou; Li Jinguo; Sun Xiaofeng | |
| Corresponding Author | Liu Jinlai(jlliu@imr.ac.cn) |
| 2020-06-01 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 56Issue:6Pages:855-862 |
| Abstract | 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 >. |
| Keyword | single crystal superalloy stiffness constant anisotropy modulus crystal orientation |
| Funding Organization | National Science and Technology Major Project ; National Key Research and Development Program of China ; National Natural Science Foundation of China |
| DOI | 10.11900/0412.1961.2019.00355 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000546975500006 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139620 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu Jinlai |
| Affiliation | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation 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. |
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