Abstract
The effects of intercritical annealing, before and after cold rolling, on retained austenite volume fractions, austenite stability, and tensile properties of a 7.39Mn-0.14C-1.55Al-0.2Si (wt pct) medium Mn sheet steel were evaluated. The extent of hot band annealing at 650 °C prior to cold rolling is shown to be an important parameter to consider in the development of processing histories leading to high strength–ductility combinations required for third-generation advanced high-strength steels.
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The authors acknowledge support of the corporate sponsors of the Advanced Steel Processing and Products Research Center at the Colorado School of Mines. This material is based upon work supported by the Department of Energy National Energy Technology Laboratory under Award Number(s) DE-EE0005976. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.
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Manuscript submitted March 15, 2019.
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Rana, R., De Moor, E., Speer, J.G. et al. Effects of Hot Band Annealing on the Mechanical Properties of Cold-Rolled and Intercritically Annealed Medium Manganese Steels. Metall Mater Trans A 50, 4016–4020 (2019). https://doi.org/10.1007/s11661-019-05363-1
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DOI: https://doi.org/10.1007/s11661-019-05363-1