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Russian Physics Journal

, Volume 58, Issue 4, pp 471–477 | Cite as

Nanostructural States and Properties of the Surfacing Formed on Steel by a Cored Wire

  • E. V. Kapralov
  • E. A. Budovskikh
  • V. E. Gromov
  • Yu. F. Ivanov
Article

Structural-phase states and mechanical properties of electric arc surfacing by an EnDOtec DO*33 cored wire on a Hardox 400 steel are investigated. Formation of the multiphase state of the surfacing represented by grains of α-iron and inclusions of carbide phases based on iron, chromium, and niobium is revealed by the methods of electron diffraction microscopy and x-ray phase analysis. The additional treatment of the surfacing by a high-intensity electron beam is performed. Mutual arrangement of the grains of α-iron and particles of carbide phases is investigated. It is found that the surfacing layer is in the elastic-stressed state formed as a result of super-high heating and cooling rates initiated by the pulsed electron beam treatment. It is shown that the microhardness of the surfaced layer remains constant with the depth down to 4 mm and exceeds by a factor of 2.4 the microhardness of the substrate; the wear resistance of the surfacing is 3 times higher than that of the steel, and the friction coefficient of the surfacing is half that of the steel.

Keywords

electric arc surfacing cored wire structural-phase states microhardness wear resistance friction coefficient 

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • E. V. Kapralov
    • 1
  • E. A. Budovskikh
    • 1
  • V. E. Gromov
    • 1
  • Yu. F. Ivanov
    • 2
    • 3
  1. 1.Siberian State Industrial UniversityNovokuznetskRussia
  2. 2.Institute of High Current Electronics of the Siberian Branch of the Russian Academy of SciencesTomskRussia
  3. 3.National Research Tomsk State UniversityTomskRussia

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