Abstract
The effect of ultrafast heating on the microstructure and properties of a low-carbon steel is studied at the microscale. Ultrafast heating results in the formation of a complex multiphase microstructure containing mainly martensite and retained austenite grains embedded into a ferritic matrix. The ferritic matrix exhibits a microstructure consisting of recovered and recrystallized grains. The recrystallized grains are softer and display pop-in events during nanoindentation, while the harder recovered grains show uniform deformation behavior.
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MAVT acknowledges gratefully the financial support by IMDEA Innovation Award. IS, MAM, and JMMA would like to acknowledge the support by Madrid Region under Programme S2013/MIT-2775, DIMMAT Project. FV acknowledges the support via European Project EC-RFCS “Optimization of QP steels designed for industrial applications” (OPTIQPAP).
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Manuscript submitted February 19, 2018.
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Valdes-Tabernero, M.A., Vercruysse, F., Sabirov, I. et al. Effect of Ultrafast Heating on the Properties of the Microconstituents in a Low-Carbon Steel. Metall Mater Trans A 49, 3145–3150 (2018). https://doi.org/10.1007/s11661-018-4658-4
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DOI: https://doi.org/10.1007/s11661-018-4658-4