Mesoscale modeling and simulation of microstructure evolution during dynamic recrystallization of a Ni-based superalloy

Chen, Fei and Cui, Zhenshan and Ou, Hengan and Long, Hui (2016) Mesoscale modeling and simulation of microstructure evolution during dynamic recrystallization of a Ni-based superalloy. Applied Physics A, 122 (10). p. 890. ISSN 1432-0630

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Abstract

Microstructural evolution and plastic flow characteristics of a Ni-based superalloy were investigated using a simulative model that couples the basic metallurgical principle of dynamic recrystallization (DRX) with the twodimensional (2D) cellular automaton (CA). Variation of dislocation density with local strain of deformation is considered for accurate determination of the microstructural evolution during DRX. The grain topography, the grain size and the recrystallized fraction can be well predicted by using the developed CA model, which enables to the establishment of the relationship between the flow stress, dislocation density, recrystallized fraction volume, recrystallized grain size and the thermomechanical parameters.

Item Type: Article
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
Identification Number: https://doi.org/10.1007/s00339-016-0404-1
Depositing User: Eprints, Support
Date Deposited: 04 Oct 2016 07:46
Last Modified: 16 Oct 2016 06:56
URI: http://eprints.nottingham.ac.uk/id/eprint/37313

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