Science China Technological Sciences

, Volume 60, Issue 3, pp 452–458 | Cite as

An anisotropic micromechanical model for calculation of effective elastic moduli of Ni-based single crystal superalloys

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Abstract

An anisotropic micromechanical model based on Mori-Tanaka method is developed to calculate the effective elastic moduli of Ni-based single crystal superalloys. In the micromechanical model, the γ' precipitate with very high volume fraction is regarded as matrix, γ phase is divided into three parts as three different kinds of inclusions, and the actual cubic structure and orthogonal anisotropy properties of γ phase and γ′ precipitate are taken into account. Based on this anisotropic micromechanical model, the effective elastic moduli of Ni-based single crystal superalloys composite materials is obtained, and the influences of volume fraction and elastic constants of γ′ precipitate on the effective elastic moduli are also discussed. The results provide useful information for understanding mechanical behavior of composite materials in Ni-based single crystal superalloys and other anisotropic polygonal inclusion problem.

Keywords

Ni-based single crystal superalloys effective elastic moduli Mori-Tanaka method anisotropic inclusion 

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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • ShuangYu Li
    • 1
  • WenPing Wu
    • 1
    • 2
  • YunLi Li
    • 1
  • MingXiang Chen
    • 1
  1. 1.Department of Engineering Mechanics, School of Civil EngineeringWuhan UniversityWuhanChina
  2. 2.State Key Laboratory of Water Resources & Hydropower Engineering ScienceWuhan UniversityWuhanChina

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