Abstract—Special misorientations between the bainite crystals in a high-carbon manganese–silicon steel, which were obtained during isothermal γ → α transformation at 300°C, have been studied using EBSD-based orientation microscopy. Sets of special boundaries have been compared with theoretical calculations of possible angles and axes of rotation of α crystals arising in the initial γ phase as a consequence of three types of orientation relationships: Kurdjumov–Sachs, Nishiyama–Wasserman, and intermediate. It has been shown that the special misorientations of α crystals taking into account the Brandon criterion correspond to Nishiyama–Wasserman and Kurdjumov–Sachs orientation relationships.
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ACKNOWLEDGMENTS
The authors are grateful to M.L. Lobanov for valuable comments in discussing the work.
Funding
The work was performed under the state task (theme “Struktura”, no. АААА-А18-118020190116-6).
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Translated by O. Golosova
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Tereshchenko, N.A., Yakovleva, I.L., Kabanova, I.G. et al. Special Misorientations in Low-Temperature Isothermal Bainite of High-Carbon Manganese–Silicon Steel. Phys. Metals Metallogr. 120, 874–880 (2019). https://doi.org/10.1134/S0031918X1907010X
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DOI: https://doi.org/10.1134/S0031918X1907010X