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Assessment of former austenite structure in hot rolled steel in terms of its texture after martensitic transformation
https://doi.org/10.22349/1994-6716-2024-117-1-40-49
Abstract
Textures of medium carbon steel, hot rolled and then quenched, have been determined by Electron backscatter diffraction (EBSD). To ensure representativeness of results, a rather large treated scan covered about a thousand of prior grains, each containing several thousands of measurement points. Considering inter-phase orientation relationships peculiar to martensitic steels, textures of the high temperature phase (austenite) have been assessed in terms of the transformation textures. Thus, deformed and recrystallized states of austenite dependent on the rolling conditions can be distinguished. To verify EBSD data, martensite textures were measured by an independent method of EBSD whereas morphology of the prior grains was revealed by means of chemical etching.
Supporting agencies: Experimental studies were performed on the equipment of the Center for Collective Use “Composition, Structure and Properties of Structural and Functional Materials” of the NRC “Kurchatov Institute” – CRISM “Prometey”. Computer processing of the obtained EBSD data was carried out at the Federal State Autonomous Educational Institution of Higher Education Peter the Great St Petersburg Polytechnic University using the MTEX program with the financial support of the Russian Science Foundation, project No 22-19-00627.
About the Authors
A. A. Zisman
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Dr. Sc. (Phys-Math)
49 Shpalernaya St, 191015 St Petersburg
T. V. Kniazyuk
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Cand Sc. (Eng)
49 Shpalernaya St, 191015 St Petersburg
S. N. Petrov
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Dr. Sc. (Eng)
49 Shpalernaya St, 191015 St Petersburg
M. L. Fedoseev
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
49 Shpalernaya St, 191015 St Petersburg
N. S. Novoskoltsev
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
49 Shpalernaya St, 191015 St Petersburg
References
1. Garcia de Andres, C., Bartolome, M.J., Capdevila, C., et al., Metallographic techniques for the determination of the austenite grain size in medium-carbon microalloyed steels, Materials Characterization, 2001, V. 46, pp. 389–398.
2. Benscoter, A.O., Perricone, M.J., Marshall's Reagent: Origins, Modifications, and new Applications, Microsc. Microanal., 2005, V. 11, pp. 76–77.
3. Garcia de Andres, C., Caballero, F.G., Capdevila, C., San Martin, D., Revealing austenite grain boundaries by thermal etching: advantages and disadvantages, Materials Characterization, 2003, No 49, pp. 121–127.
4. Perttula, J.S., Karjalainen, L.P., Recrystallization in austenite measured by double compression and stress relaxation methods, Mater. Sci. Technol., 1998, No 14, No. 626–630.
5. Bianchi, J.G., Karjalainen, L.P., Modeling of dynamic and metadynamic recrystallization during bar rolling of a medium carbon spring steel, J. Mater. Proc. Technol., 2005, V. 160, pp. 267–277.
6. Kniazyuk, T.V., Zisman, A.A., Abnormal effect of strain rate on dynamic recrystallization of austenite in medium carbon steel alloyed by boron, Letters on Materials, 2022, V. 12, pp. 71–75.
7. Brown, E.L., Deardo, A.J., On the origin of equiaxed austenite grains that result from the hot rolling of steel, Metall. Trans. A, 1981, V. 12, pp. 39–47.
8. Jonas, J.J., Transformation textures associated with steel processing, Microstructure and Texture in Steels, Haldar, A., Suwas, S., Bhattacharjee, D. (Eds.), New York: Springer, 2009, pp. 3–17.
9. Adams, B.L., Wright, S.I., Kunze, K., Orientation imaging: The emergence of a new microscopy, Metall. Mater. Trans A, 1993, V. 24, pp. 819–831.
10. Winkelmann, A., Nolze, G., Cios, G., Tokarski, T., Bala, P., Refined calibration model for improving the orientation precision of electron backscatter diffraction maps, Materials, 2020, No 13, Art. 3122816.
11. Khlusova, E.I., Zisman, A.A., Knyazyuk, T.V., Novoskoltsev, N.S., Effect of the rate of hot compressive deformation on kinetics of dynamic and static recrystallization of novel medium-carbon mediumalloy steel, Met. Sci. Heat Treat., 2018, V. 59, pp. 682–688.
12. Bain, E.C., The nature of martensite, Trans. AIME, 1924, No 70, pp. 25–35.
13. Niessen, F., Nyyssönen, T., Gazder, A., Hielscher, R., Parent grain reconstruction from partially or fully transformed microstructures in MTEX, J. Appl. Crystallogr., 2022, No 55, pp. 180–194.
14. Cayron, C., Bour, A., Logé, R., Intricate morphologies of laths and blocks in low-carbon martensitic steels, Mater. Design., 2018, No 154, pp. 81–95.
Review
For citations:
Zisman A.A., Kniazyuk T.V., Petrov S.N., Fedoseev M.L., Novoskoltsev N.S. Assessment of former austenite structure in hot rolled steel in terms of its texture after martensitic transformation. Voprosy Materialovedeniya. 2024;(1(117)):40-49. (In Russ.) https://doi.org/10.22349/1994-6716-2024-117-1-40-49
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