A hybrid crystal plasticity and phase transformation model for high carbon steel

Presence of retained austenite in two-phase steels can have a significant effect on the response of the material. The current state-of-the-art in multi-phase modeling of polycrystalline plasticity has limits on scaling, explicit phase modeling, and tracking multiple plasticity types. To address thes...

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Bibliographic Details
Published in:Computational mechanics 2013-08, Vol.52 (2), p.237-255
Main Authors: Alley, E. S., Neu, R. W.
Format: Article
Language:English
Subjects:
Austenite
Carbon steel
Classical and Continuum Physics
Computational Science and Engineering
Crystals
Dual phase steels
Duplex stainless steels
Engineering
High carbon steels
Martensite
Martensitic transformations
Modelling
Original Paper
Phase transitions
Plastic properties
Plasticity
Retained austenite
Strain
Stress-strain relationships
Theoretical and Applied Mechanics
Transformations
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Summary:Presence of retained austenite in two-phase steels can have a significant effect on the response of the material. The current state-of-the-art in multi-phase modeling of polycrystalline plasticity has limits on scaling, explicit phase modeling, and tracking multiple plasticity types. To address these issues, a hybrid material model is developed for high-carbon steels. The model can account for crystal plasticity of martensite and stress-assisted transformation from austenite to martensite in dual-phase high-carbon steel. The parameters of the model are calibrated to experimental stress-strain and volumetric transformation strain data. The combination of scalability and multiple phase representation gives a useful tool for the investigation of two-phase high-carbon steel behavior.
ISSN:0178-7675
1432-0924
DOI:10.1007/s00466-012-0810-y