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Inorganic Materials: Applied Research

, Volume 10, Issue 3, pp 606–615 | Cite as

Structure and Properties of Electro-Explosive TiC–Ni–Mo Coatings of Die Steel after Electron-Beam Treatment

  • D. A. RomanovEmail author
  • E. M. KuzivEmail author
  • V. A. Bataev
  • V. E. GromovEmail author
  • Yu. F. Ivanov
FUNCTIONAL COATINGS AND SURFACE TREATMENT
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Abstract

In this paper, we studied the phase and elemental composition of the surface layer of die steel 5KhNM subjected to electro-explosive sputtering deposited composite TiC–Ni–Mo coating and subsequent pulsed irradiation with a high-intensity submillisecond electron beam. The modes of electron-beam processing providing the formation of a dense, with a mirror gloss, surface layer with a submicrocrystalline structure based on titanium carbide and intermetallic compounds based on Mo, Ni, and Ti are determined. The electron-beam processing of an electro-explosive coating in the melting mode is shown to lead to the formation of a structurally uniform and concentration-uniform surface layer. TiC–Ni–Mo coatings have a 1.26 times higher wear resistance compared to die steel 5KhNM used as a substrate. The microhardness of the formed coatings is 450–2400 HV, the nanohardness is 25.5 GPa, and the modulus of elasticity is E = 398 GPa.

Keywords:

electro-explosive spraying electron-beam treatment nickel molybdenum titanium carbide composite coating die steel wear resistance structure 

Notes

FUNDING

This work was supported by the Russian Foundation for Basic Research, project no. 16-32-60032 mol_a_dk, and by the Grant of the President of the Russian Federation, project no. MK-1118.2017.2.

CONFLICT OF INTERESTS

The authors declare that they have no conflict of interest.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Siberian State Industrial UniversityNovokuznetskRussia
  2. 2.Novosibirsk State Technical UniversityNovosibirskRussia
  3. 3.Institute of High Current Electronics, Siberian Branch, Russian Academy of SciencesTomskRussia

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