Abstract
An attempt has been made in the current study to investigate the possibility of austenite retention in 0.5 wt pct Si steel without Al, processed through the one-step Q&P technique. The XRD and microstructural analysis confirmed austenite retention (maximum of 5.73 ± 0.16 vol pct), which showed thin film and blocky morphologies. The experimental amount of retained austenite was found to increase with the increasing quench temperature; however, it was almost independent of partitioning time. The carbon content in the retained austenite did not show any significant variation, after Q&P treatment for different time–temperature combinations. The hardness was found to be sensitive to quench temperature than the partitioning time.
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The authors gratefully acknowledge the financial support of Tata Steel Ltd., Jamshedpur for this research. The authors would also like to thank the Director, CSIR-NML, and Tata Steel management for their kind encouragement and permission to publish this work.
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Bansal, G.K., Pradeep, M., Ghosh, C. et al. Evolution of Microstructure in a Low-Si Micro-alloyed Steel Processed Through One-Step Quenching and Partitioning. Metall Mater Trans A 50, 547–555 (2019). https://doi.org/10.1007/s11661-018-5039-8
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DOI: https://doi.org/10.1007/s11661-018-5039-8