Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 122, Issue 10, Pages -Publisher
SPRINGER
DOI: 10.1007/s00339-016-0404-1
Keywords
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Funding
- Engineering and Physical Science Research Council of UK [EP/L02084X/1]
- Marie Curie International Incoming Fellowship [628,055, 913,055]
- International Research Staff Exchange Scheme (IRSES, MatProFuture project) within the 7th European Community Framework Programme (FP7) [318,968]
- National Basic Research Program of China [2011CB012903]
- National Science and Technology Major Project [2012ZX04012-011]
- EPSRC [EP/L02084X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/L02084X/1] Funding Source: researchfish
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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 two-dimensional (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.
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