Abstract
The thermal fatigue behavior of indefinite chilled cast iron rolls with various V+Nb contents and Si/Cr ratios was evaluated. Increasing the ratio of Si/Cr prolonged the life of the rolls by reducing brittle cementites. Higher V+Nb addition also increased the life through the formation of carbides that refined and toughened the martensite matrix and reduced the thermal expansion mismatch in the microstructure.
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This research was supported by National R&D Program funded by the Ministry of Knowledge Economy (10036950).
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Manuscript submitted December 30, 2014.
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Ahiale, G.K., Choi, WD., Suh, Y. et al. Effects of MC-Type Carbide Forming and Graphitizing Elements on Thermal Fatigue Behavior of Indefinite Chilled Cast Iron Rolls. Metall Mater Trans A 46, 4819–4827 (2015). https://doi.org/10.1007/s11661-015-3090-2
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DOI: https://doi.org/10.1007/s11661-015-3090-2