Publication: Modeling the role of external stresses on the austenite-to-bainite phase transformation in 51CrV4 steel
Program
KU-Authors
KU Authors
Co-Authors
Lambers, H-G
Tschumak, S.
Maier, H. J.
Publication Date
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Type
Embargo Status
Journal Title
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Alternative Title
Abstract
A new model is proposed to successfully predict the initiation and evolution of the austenite-to-bainite phase transformation, capturing specifically the time-dependent transformation kinetics. In particular, the isothermal bainitic transformation in 51CrV4 steel is experimentally observed for various constant stress conditions, and significant improvement is obtained in comparison with the existing models. Specifically, both the transformation kinetics and the resultant transformation strains can be simultaneously predicted using the same variant growth approach. Simulation results are in good agreement with the experiments, evidencing the success of the proposed model in describing the transformation phenomena in terms of kinetics and transformation plasticity. Furthermore, the proposed formulation provides a basis for incorporating variant-variant interactions and cementite formation in the residual austenite matrix.
Source
Publisher
Institute of Physics (IOP) Publishing
Subject
Materials sciences, Multidisciplinary design optimization, Physics
Citation
Has Part
Source
Modelling and Simulation in Materials Science and Engineering
Book Series Title
Edition
DOI
10.1088/0965-0393/19/4/045007