Micro-mechanical modelling of the single crystal nickel-base superalloy CMSX-4

T. Tinga; M.G.D. Geers; W.A.M. Brekelmans

Micro-mechanical modelling of the single crystal nickel-base superalloy CMSX-4

T. Tinga, M.G.D. Geers, W.A.M. Brekelmans

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

A multi-scale micromechanical model for a Ni-based superalloy is presented. The unit cell on the material point level incorporates the two-phase ã/ã'-microstructure of the material and the role of the ã/ã'-interfaces in the mechanical behaviour is emphasized. A crystal plasticity framework is used to model the constitutive behaviour of the ã-matrixphase. The limited number of unit cell constituents and the micromechanical simplifications make the framework particularly efficient in a multi-scale approach. The model is implemented in a commercial finite element code and adequately simulates the material response for the alloy CMSX-4. The effect of microstructural changes on the mechanical response is demonstrated.

Original language	English
Title of host publication	8th Conference on Materials for Advanced Power Engineering
Place of Publication	Belgium, Liege
Pages	1-11
Publication status	Published - 2006

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title = "Micro-mechanical modelling of the single crystal nickel-base superalloy CMSX-4",

abstract = "A multi-scale micromechanical model for a Ni-based superalloy is presented. The unit cell on the material point level incorporates the two-phase {\~a}/{\~a}'-microstructure of the material and the role of the {\~a}/{\~a}'-interfaces in the mechanical behaviour is emphasized. A crystal plasticity framework is used to model the constitutive behaviour of the {\~a}-matrixphase. The limited number of unit cell constituents and the micromechanical simplifications make the framework particularly efficient in a multi-scale approach. The model is implemented in a commercial finite element code and adequately simulates the material response for the alloy CMSX-4. The effect of microstructural changes on the mechanical response is demonstrated.",

author = "T. Tinga and M.G.D. Geers and W.A.M. Brekelmans",

year = "2006",

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AU - Geers, M.G.D.

AU - Brekelmans, W.A.M.

PY - 2006

Y1 - 2006

N2 - A multi-scale micromechanical model for a Ni-based superalloy is presented. The unit cell on the material point level incorporates the two-phase ã/ã'-microstructure of the material and the role of the ã/ã'-interfaces in the mechanical behaviour is emphasized. A crystal plasticity framework is used to model the constitutive behaviour of the ã-matrixphase. The limited number of unit cell constituents and the micromechanical simplifications make the framework particularly efficient in a multi-scale approach. The model is implemented in a commercial finite element code and adequately simulates the material response for the alloy CMSX-4. The effect of microstructural changes on the mechanical response is demonstrated.

AB - A multi-scale micromechanical model for a Ni-based superalloy is presented. The unit cell on the material point level incorporates the two-phase ã/ã'-microstructure of the material and the role of the ã/ã'-interfaces in the mechanical behaviour is emphasized. A crystal plasticity framework is used to model the constitutive behaviour of the ã-matrixphase. The limited number of unit cell constituents and the micromechanical simplifications make the framework particularly efficient in a multi-scale approach. The model is implemented in a commercial finite element code and adequately simulates the material response for the alloy CMSX-4. The effect of microstructural changes on the mechanical response is demonstrated.

M3 - Conference contribution

SP - 1

EP - 11

BT - 8th Conference on Materials for Advanced Power Engineering

CY - Belgium, Liege

ER -