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Microhardness and Structure Distribution over the Layer of a High-Hardness Heat-Resitant Alloy Formed by Multi-Layer Plasma Surfacing in a Nitrogen Medium

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The distributions of microhardness, chemical composition and structure over the thickness and surface of a layer formed from heat resistant steel (R2M8Y Grade) by plasma surfacing in a protective-alloying nitrogen medium are studied. It is found out that the surfacing technology and the surface-alloyed material allow forming a high-quality alloy without any cracks, pores, slag inclusions and macro- and microstructure defects. It is determined that the surface-alloyed layer consists of pearlite grains, with carbonitrides (Ме6NC and AlN) based on iron, tungsten, chromium, molybdenum and aluminum distributed along the grain boundaries and intersections.

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Authors and Affiliations

  1. Siberian State Industrial University, Novokuznetsk, Russia

    N. N. Malushin, D. A. Romanov, L. P. Baschenko, A. P. Semin & V. E. Gromov

  2. AO EVRAZ – West-Siberian Metallurgical Plant (EVRAZ ZSMK AO), Novokuznetsk, Russia

    A. P. Kovalev

Authors
  1. N. N. Malushin
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  2. D. A. Romanov
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  3. A. P. Kovalev
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  4. L. P. Baschenko
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  5. A. P. Semin
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  6. V. E. Gromov
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Corresponding author

Correspondence to N. N. Malushin.

Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 7, pp. 75–80, July, 2021.

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Malushin, N.N., Romanov, D.A., Kovalev, A.P. et al. Microhardness and Structure Distribution over the Layer of a High-Hardness Heat-Resitant Alloy Formed by Multi-Layer Plasma Surfacing in a Nitrogen Medium. Russ Phys J 64, 1254–1260 (2021). https://doi.org/10.1007/s11182-021-02452-w

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  • DOI: https://doi.org/10.1007/s11182-021-02452-w

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