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  4. Virtual testing of dual-phase steels: Effect of martensite morphology on plastic flow behavior
 
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2016
Journal Article
Title

Virtual testing of dual-phase steels: Effect of martensite morphology on plastic flow behavior

Abstract
Dual-phase steels exhibit a moderate plastic anisotropy as a result of the underlying microstructure. A numerical homogenization scheme based on full-field finite element simulations was applied to assess the effect of the martensite morphology on the stress-strain curves and the plastic strain ratios (r-values) of a dual-phase steel under uniaxial tensile loading in different directions. The simulation results show that the martensite morphology affects the macroscopic response and the degree of plastic anisotropy. The mechanical behavior of the dual-phase steel (DP600) investigated in this work could be predicted if the crystallographic texture of the material and a statistically equivalent martensite morphology were considered in the simulations. The corresponding finite element models of the dual-phase microstructure were generated using a reconstruction procedure based on statistical correlation functions.
Author(s)
Pagenkopf, J.
Butz, A.
Wenk, M.
Helm, D.
Journal
Materials Science and Engineering, A. Structural materials, properties, microstructure and processing  
Funder
Deutsche Forschungsgemeinschaft DFG  
Open Access
DOI
10.24406/publica-r-246762
10.1016/j.msea.2016.07.118
File(s)
N-421669.pdf (5.87 MB)
Language
English
Fraunhofer-Institut für Werkstoffmechanik IWM  
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