Abstract
The behavior of internal crack healing in low-carbon steel samples undergoing hot plastic deformation was investigated using the MMS 200 thermo-mechanical simulator. The characterization of cracks after plastic deformation was analyzed using scanning electron microscopy under different heating temperatures, reduction ratios, numbers of deformation passes, strain rates, and holding time durations. It was found that the degree of crack healing increases with increasing heating temperature, reduction ratio, and holding time duration, and with decreasing number of deformation passes and strain rate.
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Acknowledgments
The lead author gratefully acknowledges the financial support from the Vice-Chancellor’s Fellowship Grant at the University of Wollongong, the National Natural Science Foundation of China through Grant 51105071, and the Doctorate Foundation of the Ministry of Education of China through the Grant 20090042120005.
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Manuscript submitted November 8, 2012.
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Yu, H., Liu, X., Li, X. et al. Crack Healing in a Low-Carbon Steel Under Hot Plastic Deformation. Metall Mater Trans A 45, 1001–1009 (2014). https://doi.org/10.1007/s11661-013-2049-4
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DOI: https://doi.org/10.1007/s11661-013-2049-4