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Local texture analysis of structure non-uniformity in low carbon high-strength steel after direct quenching
https://doi.org/10.22349/1994-6716-2020-103-3-09-16
Abstract
The direct quenching of high-strength steels after hot rolling, which enables discard of the reheating operation, is economically efficient but necessitates a careful analysis of corresponding structural features. In particular, this treatment sometimes results in extended domains of coarse bainite decreasing the fracture toughness of steel. To reveal dependence of such effects on ausforming conditions, local textures of the parent γ-phase have been reconstructed from EBSD orientation data with allowance for the inter-phase orientation relationship. According to the obtained results, the unfavorable structural non-uniformity appears in the direct quenching due to excessive work hardening of austenite at the finish rolling stage; however, the structure and properties of steel can be improved by the reheating and subsequent quenching.
About the Authors
A. A. Zisman
NRC “Kurchatov Institute” – CRISM “Prometey”; Peter the Great St Petersburg Polytechnic University
Russian Federation
Russian Federation
Dr Sc. (Phys-Math)
49 Shpalernaya St, 191015, St Petersburg
29 Polytekhnicheskaya St, 195251, St Petersburg
N. Yu. Zolotorevsky
Peter the Great St Petersburg Polytechnic University
Russian Federation
Russian Federation
Cand Sc. (Phys-Math)
29 Polytekhnicheskaya St, 195251, St Petersburg
S. N. Petrov
NRC “Kurchatov Institute” – CRISM “Prometey”; Peter the Great St Petersburg Polytechnic University
Russian Federation
Russian Federation
Cand Sc. (Chem)
49 Shpalernaya St, 191015, St Petersburg
29 Polytekhnicheskaya St, 195251, St Petersburg
E. I. Khlusova
NRC “Kurchatov Institute” – CRISM “Prometey”; Peter the Great St Petersburg Polytechnic University
Russian Federation
Russian Federation
Dr Sc. (Eng)
49 Shpalernaya St, 191015, St Petersburg
29 Polytekhnicheskaya St, 195251, St Petersburg
E. A. Yashina
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
49 Shpalernaya St, 191015, St Petersburg
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, No 35, pp. 389–398.
2. Cayron, C., Artaud, B., Briottet, L., Reconstruction of parent grains from EBSD data, Materials Characterization, 2006, 57, Issues 4–5, pp. 386–401.
3. Zisman, A.A., Kolomoets, D.R., Zolotorevsky, N.Yu., Petrov, S.N., Extraction of prior grain boundaries from interfaces of martensite based on particular statistics for inter-variant disorientations, Letters on Materials, 2018, No 8 (4), pp. 448–453.
4. Zolotorevsky, N.Yu., Zisman, A.A., Panpurin, S.N., et al., Effect of the Grain Size and Deformation Substructure of Austenite on the Crystal Geometry of Bainite and Martensite in Low-Carbon Steels, Metal Science and Heat Treatment, (2014), V. 55, pp. 550–558.
5. Morris, J.W., On the Ductile-Brittle Transition in Lath Martensitic Steel, ISIJ International, 2011, No 51 (10), pp. 1569–1575.
6. Bernier, N., Bracke, L., Malet, L., Godet, S., Crystallographic Reconstruction Study of the Effects of Finish Rolling Temperature on the Variant Selection During Bainite Transformation in C–Mn High-Strength Steels, Metallurgical and Materials Transactions A, 2014, No 45, pp. 5937–5955.
7. Jonas, J.J., Transformation Textures Associated With Steel Processing, Microstructure and Texture in Steels, New York: Springer, 2009, pp. 3–17.
8. Zolotorevsky, N., Kazakova, E., Kazakov, A., Petrov, S., Panpurin, S., Investigation of the Origin of Coarse-Grained Bainite in X70 Pipeline Steels by EBSD Technique, Materials Performance and Characterization, 2017, V. 6, No 3, pp. 281–291.
9. Bhadeshia, H., Honeycombe, R., Steel microstructure and properties, Amsterdam: Elsevier, 2006.
10. Cayron, C., Baur, A., Loge, R., Intricate morphologies of laths and blocks in low-carbon martensitic steels, Materials and Design, 2018, No 154, pp. 81–95.
11. Bain, E.C., The Nature of Martensite, Trans. AIME, 1924, V. 70, pp. 25–35.
12. Bunge, H.-J., Texture Analysis in Materials Science, Butterworths, 1982.
13. Bachmann, F., Hielscher, R., Schaeben, H., Grain detection from 2d and 3d EBSD data – Specification of the MTEX algorithm, Ultramicroscopy, 2011, No 111, pp. 1720–1733.
Review
For citations:
Zisman A.A., Zolotorevsky N.Yu., Petrov S.N., Khlusova E.I., Yashina E.A. Local texture analysis of structure non-uniformity in low carbon high-strength steel after direct quenching. Voprosy Materialovedeniya. 2020;(3(103)):9-16. (In Russ.) https://doi.org/10.22349/1994-6716-2020-103-3-09-16
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