期刊
ACTA MATERIALIA
卷 60, 期 17, 页码 5984-5999出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2012.06.058
关键词
Finite-element method; Crystal plasticity; Phase-field modeling; Process-structure-property relations; Microstructure-sensitive design
资金
- National Science Foundation (NSF) Industry/University Cooperative Research Center for Computational Materials Design (CCMD)
- CCMD [NSF IIP-0541674, IIP-541678]
- National Science Foundation
- National Center for Supercomputing Applications (NCSA) [TG-MSS090045]
Establishing process-structure-property relationships is an important objective in the paradigm of materials design in order to reduce the time and cost needed to develop new materials. A method to link phase-field (process-structure relations) and microstructure-sensitive finite-element (structure-property relations) modeling is demonstrated for subsolvus polycrystalline IN100. A three-dimensional experimental dataset obtained by orientation imaging microscopy performed on serial sections is utilized to calibrate a phase-field model and to calculate inputs for a finite-element analysis. Simulated annealing of the dataset realized through phase-field modeling results in a range of coarsened microstructures with varying grain size distributions that are each input into the finite-element model. A rate-dependent crystal plasticity constitutive model that captures the first-order effects of grain size, precipitate size and precipitate volume fraction on the mechanical response of IN 100 at 650 C is used to simulate stress-strain behavior of the coarsened polycrystals. Model limitations and ideas for future work are discussed. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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