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Structural States of Steel 316L in the Zone of Welded Joint

  • WELDED JOINTS
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Metal Science and Heat Treatment Aims and scope

The structure of a welded joint of stainless steel 316L is studied by the methods of scanning electron microscopy including microprobe x-ray spectrum analysis and diffraction of backscattered electrons (EBSD). It is shown that a double-phase structure forms in the region of the weld including high-temperature δ-ferrite and austenite. The austenite and the ferrite undergo recrystallization in direction \(\langle 100\rangle \) parallel to the heat removal. The presence of high-temperature δ-ferrite in the steel results in nonuniform distribution of the alloying elements (Cr, Ni, Mo) and in appearance of phase boundaries, which can reduce the corrosion resistance of the welded joint.

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The study has been financed by Grant No. 23-29-00615 of the Russian Scientific Foundation, https://rscf.ru/project/23-29-00615/.

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Authors and Affiliations

  1. Institute of Reactor Materials, Zarechny, Russia

    V. Yu. Yarkov, V. I. Pastukhov, O. A. Golosov, Yu.I. Tsuprun & A. A. Osintseva

  2. Ural Federal University after the First President of Russia B. N. Eltsyn, Ekaterinburg, Russia

    V. Yu. Yarkov & V. I. Pastukhov

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  1. V. Yu. Yarkov
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  2. V. I. Pastukhov
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  3. O. A. Golosov
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  4. Yu.I. Tsuprun
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Correspondence to V. Yu. Yarkov.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 64 – 68, July, 2023.

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Yarkov, V.Y., Pastukhov, V.I., Golosov, O.A. et al. Structural States of Steel 316L in the Zone of Welded Joint. Met Sci Heat Treat 65, 454–459 (2023). https://doi.org/10.1007/s11041-023-00954-7

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  • DOI: https://doi.org/10.1007/s11041-023-00954-7

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