ICAMS / Interdisciplinary Centre for Advanced Materials Simulation

Publications

Modeling of microstructure evolution with dynamic recrystallization in finite element simulations of martensitic steel

T.J. Baron, K. Khlopkov, T. Pretorius, D. Balzani, D. Brands, J. Schröder.

Steel Research International, 87, 37-45, (2016)

Abstract
A metallurgical material description of the flow behavior for finite element (FE) simulations was developed. During hot compression tests, the dynamic microstructure evolution is modeled on the example of high-strength martensitic steel MS-W 1200. Compression tests at 900-1000 °C with a strain rate of 0.1 s-1 on fine-grain and coarse-grain samples were performed. An analysis of the flow behavior identified a strong correlation between the dynamic recrystallization kinetics and the initial microstructure. The regression analysis has been used to determine correction factors of the new model to describe the dynamic recrystallization. A good agreement between FE simulation and measurement shows the validity of the new model. A metallurgical material description of the flow behavior for finite element (FE) simulations is developed. During hot compression tests, the dynamic microstructure evolution is modeled on the example of high-strength martensitic steel MS-W 1200. An analysis of the flow behavior identifies a strong correlation between the dynamic recrystallization kinetics and the initial microstructure. © 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.


Keyword(s): compression testing; crystal microstructure; finite element method; high strength steel; martensitic steel; microstructure; recrystallization (metallurgy); regression analysis; strain rate; dynamic microstructures; finite element simulations; grain size e
Cite as: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955401259&doi=10.1002%2fsrin.201400576&partnerID=40&md5=ebfd6a6017ec0d2d4eb26d6f536e9963
DOI: 10.1002/srin.201400576
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