Materials 2013, 6(11), 5217-5233; doi:10.3390/ma6115217
Article

Impact of Intragranular Substructure Parameters on the Forming Limit Diagrams of Single-Phase B.C.C. Steels

Received: 29 August 2013; in revised form: 21 October 2013 / Accepted: 29 October 2013 / Published: 13 November 2013
(This article belongs to the Special Issue Computational Modeling and Simulation in Materials Study)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: An advanced elastic-plastic self-consistent polycrystalline model, accounting for intragranular microstructure development and evolution, is coupled with a bifurcation-based localization criterion and applied to the numerical investigation of the impact of microstructural patterns on ductility of single-phase steels. The proposed multiscale model, taking into account essential microstructural aspects, such as initial and induced textures, dislocation densities, and softening mechanisms, allows us to emphasize the relationship between intragranular microstructure of B.C.C. steels and their ductility. A qualitative study in terms of forming limit diagrams for various dislocation networks, during monotonic loading tests, is conducted in order to analyze the impact of intragranular substructure parameters on the formability of single-phase B.C.C. steels.
Keywords: forming limit diagrams; bifurcation analysis; intragranular substructure; multiscale model; crystal plasticity; B.C.C. materials
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MDPI and ACS Style

Franz, G.; Abed-Meraim, F.; Berveiller, M. Impact of Intragranular Substructure Parameters on the Forming Limit Diagrams of Single-Phase B.C.C. Steels. Materials 2013, 6, 5217-5233.

AMA Style

Franz G, Abed-Meraim F, Berveiller M. Impact of Intragranular Substructure Parameters on the Forming Limit Diagrams of Single-Phase B.C.C. Steels. Materials. 2013; 6(11):5217-5233.

Chicago/Turabian Style

Franz, Gérald; Abed-Meraim, Farid; Berveiller, Marcel. 2013. "Impact of Intragranular Substructure Parameters on the Forming Limit Diagrams of Single-Phase B.C.C. Steels." Materials 6, no. 11: 5217-5233.

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