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Investigation of austenitic TRIP steels by means of a phase field model
Author(s) -
Schmidt Simon,
Klein Matthias W.,
Boemke Annika,
Smaga Marek,
Beck Tilmann,
Müller Ralf
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800369
Subject(s) - electron backscatter diffraction , austenite , formability , materials science , plasticity , trip steel , phase (matter) , finite element method , field (mathematics) , transformation (genetics) , metastability , deformation (meteorology) , diffraction , metallurgy , mechanics , structural engineering , mathematics , composite material , physics , microstructure , engineering , optics , pure mathematics , biochemistry , chemistry , quantum mechanics , gene
Abstract Austenitic TRansformation Induced Plasticity (TRIP) steels offer an outstanding combination of formability and strength. Using Electron Backscatter Diffraction (EBSD) technique, the grain orientation and morphology of f.c.c. and b.c.c. phases can be clearly detected in initial state and at definite strains [2]. In order to qualify the driving mechanisms of phase transformations occuring during deformation of metastable austenites, e.g. TRIP steels, a phase field model is used. For the modelling, we follow [6]. The field equations are solved using the finite element method with bi‐linear shape functions and 4‐node elements. Features of this model are demonstrated by illustrative numerical examples.