Abstract
Advancement of the Q&P process—a suitable means for austenite stabilization—requires modeling techniques that accurately predict the C redistribution process. In the current work, thermokinetic modeling of the C redistribution is performed, including an approach to describe the discrepancy in the C chemical potential within martensite resulting from the presence of defects. Good agreement between model and experiment is obtained, thus contributing to the fundamental understanding of the physical metallurgy involved in the Q&P process.
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Fruitful discussions and continuous support with the MatCalc calculations by Y.V. Shan and Prof. Dr. E. Kozeschnik (TU Wien) are greatly appreciated. The authors gratefully acknowledge the financial support under the scope of the COMET program within the K2 Center “Integrated Computational Material, Process and Product Engineering (IC-MPPE)” (Project No. 859480). This program is supported by the Austrian Federal Ministries for Transport, Innovation and Technology (BMVIT) and for Digital and Economic Affairs (BMDW), represented by the Austrian research funding association (FFG), and the federal states of Styria, Upper Austria and Tyrol.
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Manuscript submitted February 25, 2019.
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Klein, T., Lukas, M., Sartory, B. et al. Redistribution of C in a Martensite/Austenite Assembly Resulting from Q&P Processing: Computational Modeling Supported by Experiments. Metall Mater Trans A 50, 4006–4011 (2019). https://doi.org/10.1007/s11661-019-05358-y
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DOI: https://doi.org/10.1007/s11661-019-05358-y