The EBSD technique is used to study the structural and textural states in an austenitic corrosion-resistant steel of type Kh18N9 after long-term service in a tube at high temperatures. It is shown that the grains of the α-phase nucleate on coherent twin boundaries (Σ3 of the CSL model) between austenite grains, which determines their unique crystallographic orientation.
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The work has been performed with financial support of the Russian Foundation for Basic Research, Grant mol a No. 18-33-00135. The authors are obliged to the contribution of the Program for Support of the Leading Universities of the RF aimed at raising their competitiveness No. 211 of the RF Government No. 02.A03.21.0006.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 5 – 11, July, 2020.
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Lobanov, M.L., Pastukhov, V.I. & Redikultsev, A.A. Crystallographic Features of Decomposition of g-Phase in Austenitic Corrosion-Resistant Steel. Met Sci Heat Treat 62, 423–429 (2020). https://doi.org/10.1007/s11041-020-00579-0
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DOI: https://doi.org/10.1007/s11041-020-00579-0