%0 Book Section
%A Strobl, Rachel
%A Budnitzki, Michael
%A Sandfeld, Stefan
%Y Biermann, Horst
%Y Aneziris, Christos G.
%T Properties of Phase Microstructures and Their Interaction with Dislocations in the Context of TRIP Steel Systems
%V 298
%C Cham
%I Springer International Publishing
%M FZJ-2023-00984
%@ 78-3-030-42603-3
%B Springer Series in Materials Science
%P 771 - 792
%D 2020
%< Austenitic TRIP/TWIP Steels and Steel-Zirconia Composites / Biermann, Horst (Editor) ; Cham : Springer International Publishing, 2020, Chapter 23 ; ISSN: 0933-033X=2196-2812 ; ISBN: 978-3-030-42602-6=978-3-030-42603-3 ; doi:10.1007/978-3-030-42603-3
%X Transformation Induced Plasticity (TRIP) steels undergo a diffusionless phase transformation from austenite to martensite, resulting in a material exhibiting desireable material properties such as exceptional balance of strength and ductility as well as good fatigue behavior. Computational modeling at the mesoscale is potentially a suitable tool for studying how plastic deformation interacts with phase transformations and ultimately affects the bulk properties of these steels. We introduce models that represent the phase microstructure in a continuum approach and couple a time-dependent Ginzburg-Landau equation with discrete dislocation via their elastic strain energy densities. With this, the influence of several dislocation configurations are examined, namely a single dislocation, a “penny-shaped crack”, and a “dislocation cascade”. It is shown that the strain due to the presence of dislocations has a significant influence on the resultant martensitic microstructure. Furthermore, the importance of using a non-local elasticity approach for the dislocation stress fields is demonstrated.
%F PUB:(DE-HGF)7
%9 Contribution to a book
%R 10.1007/978-3-030-42603-3_23
%U https://juser.fz-juelich.de/record/943390